Micro tools that run 100% in your browser
Convert, calculate, generate and inspect — 5 free uses per tool every day, no signup wall. Your data never leaves the tab: every tool executes locally with native Web APIs. Zero uploads. Zero waiting.
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ASG Privacy Verified
Every tool passes the trust shield review: 100% in-browser execution, zero server uploads, verifiable in your Network tab.
Works offline after load
Disconnect your internet — the tools keep running. The strongest possible proof that your data never leaves your device.
Instant by architecture
Static HTML served from the edge via Cloudflare Pages. No cold starts, no queues, no processing slots — just click and go.
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The tools our users keep pinned
JSON to CSV Converter
Convert JSON arrays to clean CSV or TSV with auto-flattening of nested objects. Zero-click, zero-upload, spreadsheet-ready output.
Cron Schedule Visualizer
Decode any cron expression into plain English and preview the next 5 execution timestamps in your local timezone.
Fluid clamp() Calculator
Turn design specs into production-ready CSS clamp() formulas with the interpolation math exposed and a live preview.
JWT Decoder & Inspector
Decode JWT headers and payloads instantly, read iat/exp/nbf as human dates, and spot expired tokens — zero server.
WebP to PNG Converter
Batch-convert WebP images to lossless PNG in your browser via Canvas — with before/after size comparison.
URL Query String Inspector
Parse any URL into base URL and query parameters, then edit and rebuild. Essential for API debugging.
Regex Tester & Debugger
Test regular expressions against any text with live match highlighting, capture group inspection, and find-and-replace.
Word & Character Counter
Count words, characters, sentences, paragraphs, reading time, speaking time and keyword frequency — live as you type.
CSS Glassmorphism Generator
Create beautiful frosted-glass CSS effects with live preview — adjust blur, transparency, border and shadow, then copy CSS or SCSS.
Color Palette & Gradient Builder
Generate 9-shade Tailwind-compatible palettes from any hex color, build multi-stop CSS gradients, and find complementary colors.
Break-Even Point Calculator
Calculate break-even units and revenue from fixed costs, variable cost and price. Includes target profit planning and scenario table.
Freelance Invoice Generator
Create professional freelance invoices with line items, tax, discount, and totals — download as HTML or print to PDF, zero sign-up.
Password Strength Checker
Analyze password strength with entropy, estimated crack time, detailed criteria checklist and a built-in secure password generator.
JSON Formatter & Validator
Format, validate, minify, or sort JSON data instantly — with error highlighting, line counts, key counts and size comparison.
cURL to Fetch & Python Converter
Convert terminal curl commands to clean JavaScript fetch() or Python requests code instantly with 1-click copy.
IPv4 CIDR Subnet Calculator
Calculate subnet masks, wildcard masks, usable IP ranges, and host counts for any IPv4 CIDR block with interactive slider.
SVG to React JSX Component Converter
Convert raw SVG markup into clean, typed React/Next.js functional components with camelCase attributes and props spreading.
Image HEX & Palette Extractor
Extract dominant color palettes and HEX codes from any uploaded image using client-side canvas color quantization.
Timezone Overlap & Team Meeting Finder
Find overlapping working hours and schedule meetings across international remote team members with interactive 24-hr visual timeline.
Cash Runway & Burn Rate Calculator
Calculate startup and freelance cash runway in months and days, net monthly burn, and exact zero-cash drop-dead date.
Reverse GST & VAT Tax Splitter
Reverse-calculate pre-tax net base price and exact tax amounts from gross, tax-inclusive invoice totals with 50/50 CGST/SGST split.
UTM Campaign Link Builder
Generate clean, trackable UTM campaign URLs for Google Analytics 4 (GA4) with 1-click preset sources and mediums.
Google SERP Title & Description Truncation Test
Simulate Google desktop and mobile SERP snippets with exact Arial 20px pixel width measurement to prevent title truncation.
Open Graph & Social Card Previewer
Preview how your links appear on Twitter/X, LinkedIn, and Facebook, and generate production-ready HTML <head> meta tags.
Flesch-Kincaid Readability Grade Level Checker
Calculate Flesch Reading Ease, Flesch-Kincaid Grade Level, and Gunning Fog index for essays, blogs, and marketing copy.
Speech & Reading Time Calculator
Convert word and character counts into silent reading time (225 wpm) and spoken presentation delivery time (130 wpm).
APA, MLA & Chicago Citation Formatter
Generate properly punctuated bibliographic references in APA 7th, MLA 9th, and Chicago styles for Books, Websites, and Journals.
Display PPI & Retina Distance Calculator
Calculate display pixel density (PPI), dot pitch, physical dimensions, and Apple Retina viewing distances for monitors and screens.
Tap Tempo BPM Counter
Tap along to any rhythm to calculate running average Beats Per Minute (BPM), millisecond intervals, and classical tempo markings.
Appliance Electricity Cost & kWh Calculator
Estimate daily, monthly, and yearly power consumption and utility costs for space heaters, ACs, PCs, and home electronics.
Baking Grams to Cups Converter
Convert baking recipe weights into accurate cups, tablespoons, and teaspoons based on true culinary ingredient densities.
BPM to Delay & Reverb Milliseconds Calculator
Convert track tempo into millisecond delay times, pre-delays, and LFO frequencies across straight, dotted, and triplet notes.
Video Codec File Size & Bitrate Estimator
Compare estimated video file sizes across H.264, H.265 (HEVC), AV1, and Apple ProRes 422 for 1080p, 4K, and 8K projects.
Streaming Audio LUFS Loudness Standards & Auditor
Evaluate master audio loudness and peak ceilings against official targets for Spotify, YouTube, Apple Music, and Broadcast.
Musical Chord Progression Transposer & Capo Helper
Transpose chord progressions and full lyric sheets into any musical key with sharp/flat preferences and guitar capo fret suggestions.
SQL Formatter, Beautifier & Minifier
Format, clean, indent, and uppercase messy SQL queries across PostgreSQL, MySQL, SQLite, and SQL Server in your browser.
Robots.txt Generator & AI Scraper Blocker
Build search-engine-compliant robots.txt files with 1-click protection against AI scrapers, custom disallows, and sitemap directives.
Interactive CSS Flexbox Sandbox & Code Generator
Visually configure CSS Flexbox layouts with interactive alignment controls, live box rendering, and copyable CSS & Tailwind classes.
CSS Linear & Radial Gradient Visualizer
Design multi-color CSS linear and radial gradients with interactive angle wheels, color stops, and instant Tailwind utility classes.
Color Tint & Shade Scale Builder
Generate comprehensive 11-step Tailwind palettes (50 to 950) from any single brand HEX color with 1-click swatch copying.
SVG Grainy Noise Texture Generator
Generate lightweight procedural SVG feTurbulence background noise textures, Data URIs, and copyable CSS background rules.
PERT Task Hour & Project Cost Estimator
Calculate realistic project hours, standard deviation, and 68%/95% confidence intervals using three-point PERT statistical modeling.
Live Real-Time Meeting Cost Ticker
Track the real-time monetary burn of team meetings, standups, and client calls per second and minute based on attendee compensation.
Startup Equity & Stock Option Vesting Simulator
Simulate 4-year vesting schedules with 1-year cliffs, monthly option grants, exercise costs, and net value gain at various valuations.
Email Subject & Copy Spam Word Checker
Evaluate email subject lines and marketing copy against 250+ spam filter triggers, ALL-CAPS ratios, and aggressive punctuation.
YouTube Video Chapter & Timestamp Formatter
Turn messy video notes into compliant YouTube description chapters, enforcing the 00:00 start rule and 10-second intervals.
9:16 Vertical Video Safe Zone Overlay
Visualize interactive UI overlays for Instagram Reels, TikTok, and YouTube Shorts to keep subtitles and logos unobstructed.
Bulletproof HTML Email Signature Generator
Generate email-client compatible table signatures with inline CSS and 1-click rich-text copying for Gmail, Outlook, and Apple Mail.
Word & Phrase Repetition Inspector
Analyze essays and articles for overused single words and N-gram phrases (2-word, 3-word) to eliminate lexical echoes.
Syllable & Meter Counter with Haiku Validator
Count syllables per word and line for poetry, lyrics, and speech cadence with automated 5-7-5 Haiku meter validation.
LaTeX Mathematical Symbol to Unicode Converter
Translate LaTeX math commands (\alpha, \sum, \approx, \infty) into standard Unicode characters with searchable reference tables.
CGPA to US 4.0 GPA Scale Converter
Convert 10-point, 7-point, and 5-point CGPA scores to US 4.0 GPA using WES, AICTE, and German Modified Bavarian standards.
ATS Resume Keyword Gap Scanner
Analyze your resume against a job description to find missing ATS keywords, calculate your match score, and get actionable suggestions to pass automated screening.
Customizable Pomodoro Focus Timer
Structure work intervals and restorative breaks using the classical 25/5 Pomodoro technique with customizable intervals, audio chimes, and session logging.
Body Mass Index (BMI) & Weight Category Calculator
Compute BMI scores and healthy weight ranges for adults using metric or imperial measurements per World Health Organization (WHO) standards.
Calorie Deficit & TDEE Weight Loss Calculator
Calculate Total Daily Energy Expenditure (TDEE) using the Mifflin-St Jeor equation and determine sustainable daily caloric deficits for fat loss.
Percentage Change, Increase & Decrease Calculator
Calculate percentage increase, percentage decrease, and relative percentage difference between two values with step-by-step formula breakdowns.
Multi-Category Unit Converter Pro
Universal conversion across Length, Mass, Temperature, Speed, and Pressure with simultaneous multi-unit output tables and mathematical formulas.
Bulk Cryptographic UUID v4 Generator
Generate up to 1,000 cryptographically secure UUID v4 identifiers in bulk using native Web Crypto API with uppercase, lowercase, and hyphen toggles.
JSON to TypeScript Interface Generator
Infer clean, strongly typed TypeScript interfaces, type aliases, and nested object models from raw JSON payloads with optional field detection.
Compound Interest & Future Value Calculator
Model long-term wealth accumulation by compounding interest on principal with regular monthly contributions, customizable frequencies, and growth charts.
Equated Monthly Installment (EMI) & Loan Amortization Calculator
Calculate monthly loan payments, total interest liabilities, and 12-month amortization schedules for home mortgages, auto loans, and personal financing.
Cryptographic Password & Passphrase Generator
Generate high-entropy, breach-resistant passwords using the native Web Cryptography API with character set toggles and Shannon entropy ratings.
All tools
200 live in Batch 1 — the full 200-tool catalog rolls out in weekly batches.
JSON to CSV Converter
Convert JSON arrays to clean CSV or TSV with auto-flattening of nested objects. Zero-click, zero-upload, spreadsheet-ready output.
Cron Schedule Visualizer
Decode any cron expression into plain English and preview the next 5 execution timestamps in your local timezone.
Fluid clamp() Calculator
Turn design specs into production-ready CSS clamp() formulas with the interpolation math exposed and a live preview.
.env File Validator
Catch duplicate keys, unbalanced quotes and syntax errors in .env files before they silently break a deployment.
WCAG Contrast Inspector
Check any color pair against WCAG AA/AAA thresholds with a live text preview and instant accessible alternatives.
JWT Decoder & Inspector
Decode JWT headers and payloads instantly, read iat/exp/nbf as human dates, and spot expired tokens — zero server.
Reverse Payment Fee Calculator
Work backwards from the net you want to keep: get the exact gross to invoice for Stripe, PayPal or custom fees.
Business Days Counter
Count working days between dates excluding weekends and holidays — with a US federal holiday one-click preset.
Hourly to Annual Salary Converter
Convert a freelance billable rate into a realistic net annual picture with overhead and tax modeled honestly.
YouTube Thumbnail Previewer
Preview any image as a real YouTube thumbnail with mobile feed overlays — check legibility before you publish.
WebP to PNG Converter
Batch-convert WebP images to lossless PNG in your browser via Canvas — with before/after size comparison.
Ambient Noise Generator
Synthesized white, pink and brown noise for focus, sleep and masking — generated live, streamed from pure math.
Base64 Image Decoder
Decode Base64 strings into images, detect format, preview, and download — all inside your browser.
URL Query String Inspector
Parse any URL into base URL and query parameters, then edit and rebuild. Essential for API debugging.
HTML Entity Encoder / Decoder
Encode special characters to HTML entities and decode them back — live, offline, bidirectional.
Spreadsheet to Markdown Table
Copy cells from Excel or Google Sheets and convert them to a properly formatted GitHub Markdown table in one paste.
String Case Switcher
Convert any text between camelCase, PascalCase, snake_case, kebab-case and 6 more naming conventions simultaneously.
Regex Tester & Debugger
Test regular expressions against any text with live match highlighting, capture group inspection, and find-and-replace.
Word & Character Counter
Count words, characters, sentences, paragraphs, reading time, speaking time and keyword frequency — live as you type.
CSS Glassmorphism Generator
Create beautiful frosted-glass CSS effects with live preview — adjust blur, transparency, border and shadow, then copy CSS or SCSS.
Color Palette & Gradient Builder
Generate 9-shade Tailwind-compatible palettes from any hex color, build multi-stop CSS gradients, and find complementary colors.
Aspect Ratio Calculator & Scaler
Scale any width or height to a given aspect ratio, detect the ratio of existing dimensions, with common presets for video, print and social.
CSS Box Shadow Generator
Layer multiple CSS box shadows visually — adjust offset, blur, spread, color and opacity with a live preview and instant CSS output.
Break-Even Point Calculator
Calculate break-even units and revenue from fixed costs, variable cost and price. Includes target profit planning and scenario table.
Markup vs Margin Calculator
Instantly convert between markup percentage and gross margin, calculate selling price from either, and understand the key difference.
Markdown Previewer & Editor
Write Markdown with a live split-pane HTML preview — headings, code blocks, tables, blockquotes — offline, no account.
Freelance Invoice Generator
Create professional freelance invoices with line items, tax, discount, and totals — download as HTML or print to PDF, zero sign-up.
Lorem Ipsum Generator
Generate any amount of lorem ipsum placeholder text as paragraphs, sentences, words or bytes — plain text or HTML, instantly.
Password Strength Checker
Analyze password strength with entropy, estimated crack time, detailed criteria checklist and a built-in secure password generator.
JSON Formatter & Validator
Format, validate, minify, or sort JSON data instantly — with error highlighting, line counts, key counts and size comparison.
Number Base Converter
Convert numbers between binary, octal, decimal and hexadecimal instantly — with two's complement, ASCII lookup and a base-16 reference table.
Text Diff Checker
Compare two texts side-by-side and highlight added, removed and unchanged lines, words or characters with similarity percentage.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and back — supports ISO 8601, relative time ("3 days ago") and common timezones.
Hash Generator (MD5 / SHA)
Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes from any text — all in-browser, nothing uploaded to a server.
cURL to Fetch & Python Converter
Convert terminal curl commands to clean JavaScript fetch() or Python requests code instantly with 1-click copy.
Conventional Commits Builder
Interactive generator for standardized Conventional Commits (feat, fix, breaking change) with 1-click git CLI command.
IPv4 CIDR Subnet Calculator
Calculate subnet masks, wildcard masks, usable IP ranges, and host counts for any IPv4 CIDR block with interactive slider.
JavaScript Keycode & Key Event Inspector
Inspect keyboard events in real time: key, code, keyCode, location, modifier keys, and copyable addEventListener snippet.
SVG to React JSX Component Converter
Convert raw SVG markup into clean, typed React/Next.js functional components with camelCase attributes and props spreading.
Image HEX & Palette Extractor
Extract dominant color palettes and HEX codes from any uploaded image using client-side canvas color quantization.
DPI to Pixel & Print Dimension Converter
Convert print dimensions (inches, cm, mm) to pixels across 72, 150, 300, and 600 DPI with standard paper presets (A4, Letter, Posters).
Timezone Overlap & Team Meeting Finder
Find overlapping working hours and schedule meetings across international remote team members with interactive 24-hr visual timeline.
Net Payment Due Date Calculator
Calculate invoice due dates from Net 15, Net 30, Net 60, and 2/10 Net 30 terms with automatic Monday weekend rollover adjustments.
Cash Runway & Burn Rate Calculator
Calculate startup and freelance cash runway in months and days, net monthly burn, and exact zero-cash drop-dead date.
Reverse GST & VAT Tax Splitter
Reverse-calculate pre-tax net base price and exact tax amounts from gross, tax-inclusive invoice totals with 50/50 CGST/SGST split.
1-Minute Mutual NDA Generator
Generate an enforceable, standardized 1-page bilateral Mutual Non-Disclosure Agreement for contractor, freelancer, and partnership pitches.
Late Payment Reminder Email Generator
Generate tone-calibrated follow-up email drafts for unpaid invoices: Friendly Check-in, Firm Reminder, Urgent Notice, and Final Warning.
SaaS Burn Rate & Subscription Auditor
Audit recurring software subscriptions, calculate total monthly and annual spend, and identify savings from switching to annual billing.
UTM Campaign Link Builder
Generate clean, trackable UTM campaign URLs for Google Analytics 4 (GA4) with 1-click preset sources and mediums.
Google SERP Title & Description Truncation Test
Simulate Google desktop and mobile SERP snippets with exact Arial 20px pixel width measurement to prevent title truncation.
Open Graph & Social Card Previewer
Preview how your links appear on Twitter/X, LinkedIn, and Facebook, and generate production-ready HTML <head> meta tags.
Twitter / X Thread Splitter
Split long essays, articles, and drafts into numbered 280-character tweets preserving natural sentence and paragraph boundaries.
Discord Dynamic Timestamp Tag Generator
Generate dynamic Discord markdown timestamps (<t:unix:R>, <t:unix:F>) that automatically adjust to every user's local timezone.
Sitemap XML URL Extractor
Extract, deduplicate, and filter all page URLs from XML sitemaps with 1-click copy and downloadable CSV spreadsheet export.
Hashtag Cleaner & Deduplicator
Extract, clean, deduplicate, and format hashtags from unorganized social media posts and notes with custom separators.
Flesch-Kincaid Readability Grade Level Checker
Calculate Flesch Reading Ease, Flesch-Kincaid Grade Level, and Gunning Fog index for essays, blogs, and marketing copy.
Speech & Reading Time Calculator
Convert word and character counts into silent reading time (225 wpm) and spoken presentation delivery time (130 wpm).
Passive Voice Sentence Detector
Detect and highlight passive voice verb constructions ('was completed', 'have been tested') with active voice suggestions.
Duplicate Line Remover & List Sorter
Remove duplicate lines from text lists, trim whitespace, and sort alphabetically or reverse with case-sensitivity controls.
Whitespace & Empty Line Cleaner
Clean redundant spaces, collapse multiple blank lines, trim trailing line whitespace, and convert tabs to spaces.
APA, MLA & Chicago Citation Formatter
Generate properly punctuated bibliographic references in APA 7th, MLA 9th, and Chicago styles for Books, Websites, and Journals.
NATO Phonetic Alphabet Spellout
Spell out words, passwords, and serial codes using the international NATO radiotelephony alphabet with voice audio pronunciation.
Display PPI & Retina Distance Calculator
Calculate display pixel density (PPI), dot pitch, physical dimensions, and Apple Retina viewing distances for monitors and screens.
Tap Tempo BPM Counter
Tap along to any rhythm to calculate running average Beats Per Minute (BPM), millisecond intervals, and classical tempo markings.
Monitor Dead Pixel & Stuck Pixel Tester
Inspect computer displays, OLED monitors, and mobile screens for dead pixels and stuck sub-pixels with fullscreen color swatches.
Appliance Electricity Cost & kWh Calculator
Estimate daily, monthly, and yearly power consumption and utility costs for space heaters, ACs, PCs, and home electronics.
Road Trip Fuel Cost & Passenger Splitter
Calculate total gasoline or diesel volume, entire trip fuel expenses, and equal per-passenger cost shares in US or Metric units.
Baking Grams to Cups Converter
Convert baking recipe weights into accurate cups, tablespoons, and teaspoons based on true culinary ingredient densities.
Camera Crop Factor & 35mm Equivalent Calculator
Calculate 35mm full-frame equivalent focal length, depth-of-field aperture blur, and horizontal field of view across camera sensors.
BPM to Delay & Reverb Milliseconds Calculator
Convert track tempo into millisecond delay times, pre-delays, and LFO frequencies across straight, dotted, and triplet notes.
Audio Duration to Video Frames Calculator
Convert audio duration in seconds into exact animation frame counts and SMPTE timecodes across 24, 25, 30, and 60 fps.
Uncompressed WAV Audio File Size Calculator
Calculate exact megabytes, gigabytes, and data rates for linear PCM WAV recordings across sample rates, bit depths, and multi-tracks.
Video Codec File Size & Bitrate Estimator
Compare estimated video file sizes across H.264, H.265 (HEVC), AV1, and Apple ProRes 422 for 1080p, 4K, and 8K projects.
Slow-Motion Video Speed Percentage Calculator
Calculate exact playback speed percentage, slowdown factor, and timeline duration for 60fps, 120fps, and 240fps video footage.
Streaming Audio LUFS Loudness Standards & Auditor
Evaluate master audio loudness and peak ceilings against official targets for Spotify, YouTube, Apple Music, and Broadcast.
Musical Chord Progression Transposer & Capo Helper
Transpose chord progressions and full lyric sheets into any musical key with sharp/flat preferences and guitar capo fret suggestions.
SQL Formatter, Beautifier & Minifier
Format, clean, indent, and uppercase messy SQL queries across PostgreSQL, MySQL, SQLite, and SQL Server in your browser.
Robots.txt Generator & AI Scraper Blocker
Build search-engine-compliant robots.txt files with 1-click protection against AI scrapers, custom disallows, and sitemap directives.
User-Agent String Parser & Device Inspector
Inspect and decode HTTP User-Agent strings to identify browser version, operating system, layout engine, and bot/crawler identity.
Markdown to Semantic HTML Converter
Convert Markdown into semantic HTML with live visual rendering preview, copyable HTML code, and document composition metrics.
Interactive CSS Flexbox Sandbox & Code Generator
Visually configure CSS Flexbox layouts with interactive alignment controls, live box rendering, and copyable CSS & Tailwind classes.
Semantic Versioning (SemVer) Diff Comparator
Compare software release numbers, classify SemVer bumps (MAJOR, MINOR, PATCH), and verify npm caret (^) and tilde (~) compatibility.
Pure CSS Tooltip Triangle & Speech Arrow Maker
Generate pixel-perfect zero-width border triangle CSS snippets for popovers, speech bubbles, and tooltip UI arrow balloons.
CSS Linear & Radial Gradient Visualizer
Design multi-color CSS linear and radial gradients with interactive angle wheels, color stops, and instant Tailwind utility classes.
Color Tint & Shade Scale Builder
Generate comprehensive 11-step Tailwind palettes (50 to 950) from any single brand HEX color with 1-click swatch copying.
Modular Typography Scale Calculator
Generate harmonious typographic size scales based on musical and geometric ratios (Major Third, Golden Ratio) with CSS variable exports.
CSS Cubic-Bezier Easing Visualizer
Design custom CSS transition acceleration curves, preview bouncing easing animations, and copy production cubic-bezier() rules.
SVG Grainy Noise Texture Generator
Generate lightweight procedural SVG feTurbulence background noise textures, Data URIs, and copyable CSS background rules.
Emoji & Monogram SVG Favicon Maker
Create scalable vector SVG favicons and inline HTML link tags from any emoji or letter with custom background shapes and colors.
Target Video Bitrate & File Size Matcher
Calculate target video export bitrates (kbps/Mbps) to fit under strict upload caps for Discord (25MB), Slack, and WhatsApp with FFmpeg commands.
PERT Task Hour & Project Cost Estimator
Calculate realistic project hours, standard deviation, and 68%/95% confidence intervals using three-point PERT statistical modeling.
Live Real-Time Meeting Cost Ticker
Track the real-time monetary burn of team meetings, standups, and client calls per second and minute based on attendee compensation.
Scope Creep to Formal Change Order Formatter
Convert loose client revision requests into legally sound Change Orders with estimated hours, extra cost, and timeline delay impacts.
Contract Expiry & Renewal Milestone Calculator
Calculate critical written notice deadlines, countdown milestones, and generate formal renewal or termination letters.
Fair Itemized Expense & Proportional Tip Splitter
Split group dinner and project bills fairly by item consumption, distributing sales tax and tips strictly in proportion to what each person ordered.
Startup Equity & Stock Option Vesting Simulator
Simulate 4-year vesting schedules with 1-year cliffs, monthly option grants, exercise costs, and net value gain at various valuations.
Monthly Client Retainer Hours & Overage Ledger
Track contracted hours vs logged deliverables, account for rollover hours, calculate overage fees, and format client billing reports.
Email Subject & Copy Spam Word Checker
Evaluate email subject lines and marketing copy against 250+ spam filter triggers, ALL-CAPS ratios, and aggressive punctuation.
Instagram Bio Space & Line Break Preserver
Format Instagram and TikTok bios with invisible Unicode spacers to prevent mobile apps from collapsing clean line breaks.
YouTube Video Chapter & Timestamp Formatter
Turn messy video notes into compliant YouTube description chapters, enforcing the 00:00 start rule and 10-second intervals.
LinkedIn Feed Hook & Cutoff Simulator
Simulate desktop and mobile LinkedIn feed truncation to ensure your opening hook appears before the '...see more' button.
9:16 Vertical Video Safe Zone Overlay
Visualize interactive UI overlays for Instagram Reels, TikTok, and YouTube Shorts to keep subtitles and logos unobstructed.
Heading Hierarchy & SEO Tag Validator
Analyze Markdown and HTML articles to extract H1-H6 heading outlines, detecting skipped levels and multiple H1 tags.
Bulletproof HTML Email Signature Generator
Generate email-client compatible table signatures with inline CSS and 1-click rich-text copying for Gmail, Outlook, and Apple Mail.
Word & Phrase Repetition Inspector
Analyze essays and articles for overused single words and N-gram phrases (2-word, 3-word) to eliminate lexical echoes.
Smart Quotes & Typographic Dash Converter
Convert curly typographic quotes (“ ” ‘ ’) and em-dashes (—) into programming-safe ASCII straight quotes (" ') and hyphens.
Syllable & Meter Counter with Haiku Validator
Count syllables per word and line for poetry, lyrics, and speech cadence with automated 5-7-5 Haiku meter validation.
LaTeX Mathematical Symbol to Unicode Converter
Translate LaTeX math commands (\alpha, \sum, \approx, \infty) into standard Unicode characters with searchable reference tables.
CGPA to US 4.0 GPA Scale Converter
Convert 10-point, 7-point, and 5-point CGPA scores to US 4.0 GPA using WES, AICTE, and German Modified Bavarian standards.
Competitive Exam Negative Marking Calculator
Calculate final net scores, penalty mark deductions, and accuracy percentages for competitive exams (UPSC, JEE, NEET, GATE, SAT).
Multi-Line Prefix & Suffix Batch Appender
Prepend custom prefixes, append suffixes, and add sequential line numbering across multi-line text lists with 1 click.
Airline Carry-On Luggage Size Matrix
Check your carry-on luggage dimensions and weight against 12+ international airlines to avoid gate fees.
Battery Charge Time & Efficiency Estimator
Calculate realistic battery charging durations for phones, laptops, and EVs taking into account CC/CV curves and heat loss.
TV Viewing Distance & Screen Size Matcher
Find the optimal TV screen size or seating distance based on SMPTE and THX cinematic standards.
International Shoe Size Converter
Convert footwear sizing across US Men, US Women, UK, EU, CM, and Mondopoint sizing standards.
Floor Tile Area & Box Count Calculator
Calculate room tile requirements, cutting wastage percentages, and carton box counts for straight, diagonal, or herringbone patterns.
Room Wall Paint Volume Estimator
Estimate paint volume in liters and gallons with door/window deductions, multi-coat coverage, and optimal can size breakdowns.
International Paper Size Visualizer
Compare ISO 216 (A0–A6, B4, B5) and North American ANSI (Letter, Legal, Tabloid) paper dimensions, aspect ratios, and surface areas.
SVG to CSS Data URI Converter
Encode raw SVG markup into minified, browser-friendly CSS background-image Data URIs with zero Base64 overhead.
Video Letterbox & Aspect Ratio Simulator
Calculate exact letterbox/pillarbox black matte bar dimensions and screen utilization percentages for video aspect ratios.
SRT Subtitle Timestamp Shifter
Shift SubRip (.srt) subtitle cues forward or backward by exact seconds or milliseconds to fix out-of-sync audio dialogue.
Voiceover & Podcast Script Duration Estimator
Estimate spoken audio duration from script text based on slow, conversational, and fast reading speeds and breathing pauses.
SMPTE 12M Timecode & Frame Calculator
Convert broadcast video timecode (HH:MM:SS:FF) to total frame counts and milliseconds across 23.976, 24, 25, 29.97, and 60 fps.
Podcast Audio Filename & ID3 Tag Builder
Generate broadcast-compliant, RSS-safe audio file names and ID3v2 metadata tags for Spotify and Apple Podcasts.
Visual Swing Metronome & Timing Engine
Sample-accurate Web Audio metronome with BPM tempo markings, 2/4, 3/4, 4/4, 6/8 time signatures, and downbeat accents.
SVG Preview & Metadata Optimizer
Clean XML prologs, editor namespaces, and bloat from Illustrator and Inkscape SVGs with live canvas preview.
JSON Minifier & Payload Compressor
Strip all indentation, line breaks, and whitespace from JSON to produce compact single-line production payloads.
Interactive CSS Grid Layout Builder
Build responsive CSS Grid layouts with custom columns, rows, and gaps, generating clean CSS and Tailwind classes.
YAML to JSON & JSON to YAML Converter
Bi-directional converter for YAML and JSON configuration files (Docker, Kubernetes, GitHub Actions) with zero server transmission.
JSON Schema to Markdown Generator
Convert JSON Schema contracts into clean GitHub Flavored Markdown parameter tables for API documentation.
SSL Certificate Signing Request (CSR) Decoder
Decode and inspect PEM-encoded PKCS#10 Certificate Signing Requests to verify Common Name, SANs, and key strength.
Organic CSS Blob Maker & Generator
Generate smooth organic SVG shapes and 8-point CSS border-radius blobs for modern web backgrounds and avatars.
Instagram Carousel Split Calculator
Calculate exact crop slices and coordinates for panoramic seamless Instagram and LinkedIn carousels.
Interactive Before & After Image Slider
Interactive split-screen image comparator with draggable divider, horizontal/vertical modes, and copyable CSS clip-path.
PNG Alpha Channel & Halo Inspector
Inspect transparent PNG and WebP graphics for semi-transparent edge halos, dirty alpha noise, and unflattened fringe artifacts.
Subtitle to Plain Text Transcript Stripper
Strip SRT and WebVTT timestamps, cue numbers, and HTML tags to convert video subtitles into clean, readable blog transcripts.
Watermark Position & FFmpeg Calibrator
Calculate exact pixel and percentage coordinates across 9 anchor points with ready-to-use FFmpeg overlay commands.
Neumorphism (Soft UI) CSS Generator
Generate tactile Soft-UI neumorphic box shadows for flat, convex, concave, and pressed buttons with custom light angles.
Design System Accessibility Contrast Matrix
Evaluate design system palettes in an NxN compliance matrix, calculating WCAG 2.1 AA/AAA contrast ratios for all color pairs.
Mileage Reimbursement & Travel Expense Calculator
Calculate business trip mileage reimbursement using IRS standard rates, UK HMRC rates, or custom rates with a multi-trip log and CSV export.
Freelance Rainy Day Cash Buffer & Runway Calculator
Calculate your ideal emergency cash buffer and financial runway based on monthly personal living costs, fixed business overhead, and income volatility.
CTC to In-Hand Take-Home Salary Calculator
Convert gross annual CTC (Cost to Company) or job offer packages into realistic monthly take-home salary after taxes, retirement/PF, and deductions.
Business Travel Daily Per-Diem Allowance Calculator
Compute business travel per-diem allowances for domestic and international trips with meals, incidentals, lodging caps, and 75% travel day proration.
Client Discovery & Project Intake Checklist Generator
Generate structured discovery briefs and client onboarding question checklists tailored for web development, UI/UX design, SEO, or consulting.
Receipt Bill Scanner & Multi-Way Tip Splitter
Parse receipt totals or paste bill text to extract subtotal and tax, calculate custom tip percentages, and split checks evenly across dining guests.
Freelance Rate Increase Announcement Letter Generator
Generate professional, tactful rate increase notification letters for existing clients with adjustable tone, grace periods, and value rationale.
Free Vector SVG QR Code Generator
Generate permanent vector SVG QR codes with custom colors, rounded dots, and zero redirects or subscriptions.
HTML Meta Refresh Redirect Generator
Create lightweight single-file HTML meta refresh redirect pages with customizable delay, canonical tags, and noindex shields.
Mobile Google SERP Pixel Truncation Simulator
Preview how page titles and meta descriptions render on mobile Google search results. Calculates exact 16px Roboto pixel widths and cutoff points.
Headline Capitalization & Title Casing Converter
Convert blog titles and article headlines according to AP Stylebook, Chicago Manual of Style, APA, or MLA capitalization rules.
Accessible Image Alt-Text Generator & WCAG Builder
Generate concise, WCAG 2.1 AA accessible image alternative text descriptions with structured checklists for subject, action, context, and decorative tag options.
Multilingual Hreflang Tag & XML Sitemaps Builder
Generate bidirectional hreflang link tags and XML sitemap markup for international SEO with ISO 639-1 language codes and x-default fallback.
Aesthetic Social Media Quote Card Generator
Create elegant, high-resolution 1080×1080 and 1200×630 quote graphics for social media with custom typography, dark gradients, and PNG export.
Markdown to WhatsApp Formatter
Convert Markdown formatting to WhatsApp-compatible bold, italic, strikethrough and code syntax instantly. Paste your notes and share rich-text messages.
Delimiter List Sorter & Deduplicator
Sort, deduplicate, and convert delimiter-separated lists between comma, newline, pipe, semicolon and tab formats with natural numeric sort support.
BibTeX to Reference Citation Converter
Parse BibTeX entries and generate correctly formatted APA 7th, Harvard, MLA 9th, and Chicago citations instantly. Perfect for academic writers and researchers.
Cornell Notes Sheet Generator & Exporter
Create structured Cornell Method note-taking sheets with Cue, Notes, and Summary panes. Export as Markdown or print to PDF for any lecture or study session.
Text Table Column Extractor & Data Filter
Extract, isolate, and reformat specific columns from CSV, TSV, pipe-delimited, or space-separated tabular text into flat lists, SQL IN clauses, or JSON arrays.
ATS Resume Keyword Gap Scanner
Analyze your resume against a job description to find missing ATS keywords, calculate your match score, and get actionable suggestions to pass automated screening.
Interactive Greek Alphabet & Math Symbol Chart
Complete reference for all 24 Greek letters with Unicode glyphs, HTML entities, LaTeX commands, and scientific usage. Copy characters and hear pronunciations instantly.
Customizable Pomodoro Focus Timer
Structure work intervals and restorative breaks using the classical 25/5 Pomodoro technique with customizable intervals, audio chimes, and session logging.
Sleep Cycle & REM Schedule Calculator
Calculate optimal bedtime and wake-up alarms based on natural 90-minute human REM sleep cycles to wake up feeling energized without sleep inertia.
Habit Streak & Consistency Calculator
Track habit completion streaks, calculate consistency percentages, and visualize progress milestones toward the 66-day habit automaticity threshold.
Meeting Agenda & Time Allocation Builder
Format structured meeting agendas with minute-by-minute time caps, discussion owners, and live duration meters to prevent sprawling, overtime calls.
Precision Event Countdown & Milestone Timer
Track live days, hours, minutes, and seconds until upcoming project deadlines, product launches, or personal milestones with progress bars.
Focus Blocker & Distraction Domain Filter
Generate /etc/hosts sinkhole entries, uBlock Origin adblock filters, and clean JSON arrays from lists of distracting social media and news domains.
Reading List Sorter & Backlog Manager
Organize book and article queues with priority tiers (P1 to P5), reading status tracking, page counts, and total velocity statistics.
Body Mass Index (BMI) & Weight Category Calculator
Compute BMI scores and healthy weight ranges for adults using metric or imperial measurements per World Health Organization (WHO) standards.
Calorie Deficit & TDEE Weight Loss Calculator
Calculate Total Daily Energy Expenditure (TDEE) using the Mifflin-St Jeor equation and determine sustainable daily caloric deficits for fat loss.
Daily Water Intake & Hydration Calculator
Compute personalized daily water requirements based on body mass, exercise volume, and climate conditions with cups, ounces, and liters equivalents.
One-Rep Max (1RM) & Strength Percentage Calculator
Estimate maximum single-repetition lift capacity across squat, bench, and deadlift using Epley and Brzycki formulas with a complete 50%-95% percentage chart.
US Navy Body Fat Percentage Calculator
Estimate body fat percentage, lean mass, and fat mass using tape measurements (neck, waist, hips) based on the official US Navy anthropometric formula.
Target Heart Rate Zone & Karvonen Calculator
Determine your 5 aerobic training zones using age and resting heart rate via the Karvonen formula for optimal Zone 2 endurance and VO2 max pacing.
Macronutrient Ratio & Daily Gram Target Calculator
Convert daily calorie goals into precise gram targets for protein, carbohydrates, and dietary fats based on fitness goals (Balanced, High-Protein, Keto).
Scientific Notation & Standard Form Converter
Convert decimal numbers into normalized scientific notation (m × 10ⁿ), engineering notation, and E-notation with precision significant figure controls.
Percentage Change, Increase & Decrease Calculator
Calculate percentage increase, percentage decrease, and relative percentage difference between two values with step-by-step formula breakdowns.
Prime Number Checker & Sieve Generator
Check integer primality, extract prime factorizations, and generate lists of primes within custom ranges up to 100,000 using optimized trial division.
Greatest Common Divisor (GCD) & LCM Calculator
Compute the Greatest Common Divisor (GCD/HCF) and Least Common Multiple (LCM) for up to 10 numbers with Euclidean steps and prime factorizations.
Bidirectional Roman Numeral Converter
Translate Arabic numerals (1 to 3,999,999) to Roman numerals and decode Roman strings with support for classical subtractive and vinculum overline notation.
Quadratic Formula Solver & Parabola Analyzer
Solve ax² + bx + c = 0 for real and complex roots with step-by-step working, discriminant evaluation, vertex coordinates, and axis of symmetry.
Multi-Category Unit Converter Pro
Universal conversion across Length, Mass, Temperature, Speed, and Pressure with simultaneous multi-unit output tables and mathematical formulas.
Bulk Cryptographic UUID v4 Generator
Generate up to 1,000 cryptographically secure UUID v4 identifiers in bulk using native Web Crypto API with uppercase, lowercase, and hyphen toggles.
Universal Color Format Converter (HEX, RGB, HSL, OKLCH)
Bidirectional color translation between HEX, RGB, HSL, and modern CSS Color 4 OKLCH formats with live swatch preview and alpha transparency controls.
JSON to TypeScript Interface Generator
Infer clean, strongly typed TypeScript interfaces, type aliases, and nested object models from raw JSON payloads with optional field detection.
Interactive HTTP Status Code Reference & Diagnostic Guide
Search and inspect RFC specifications, diagnostic runbooks, and client/server error causes for all standard IETF HTTP response status codes.
Visual Unix Chmod Permissions Calculator
Calculate Unix file permissions using an interactive read/write/execute checkbox grid. Output octal (755), symbolic (-rwxr-xr-x), and terminal commands.
UTF-8 Base64 Text Encoder & Decoder
Encode plain text to standard RFC 4648 Base64 and decode Base64 strings back to clean UTF-8 with full international character and emoji support.
RFC 3986 URL Percent-Encoding Encoder & Decoder
Translate unsafe characters into RFC 3986 percent-encoded strings (%20, %2F) and decode complex URL parameters with diff inspection.
Compound Interest & Future Value Calculator
Model long-term wealth accumulation by compounding interest on principal with regular monthly contributions, customizable frequencies, and growth charts.
Equated Monthly Installment (EMI) & Loan Amortization Calculator
Calculate monthly loan payments, total interest liabilities, and 12-month amortization schedules for home mortgages, auto loans, and personal financing.
Goods & Services Tax (GST) Commercial Invoice Calculator
Compute tax liabilities, inclusive/exclusive base rates, and automatic CGST/SGST/IGST tax splits across standard 5%, 12%, 18%, and 28% slabs.
Salary Hike & CTC Increment Percentage Calculator
Calculate compensation increases, percentage raises, new annual CTC, and monthly take-home differences with multi-year compounding projections.
Inflation-Adjusted Purchasing Power Calculator
Compute the historical and future purchasing power of money over time using CPI inflation compounding to evaluate cash erosion over 1 to 50 years.
Personal Net Worth & Balance Sheet Calculator
Aggregate liquid assets, investments, real estate, and liabilities to calculate total financial net worth, solvency ratios, and debt-to-asset balance.
Restaurant Bill Tip & Fair Group Expense Splitter
Calculate dining gratuities across standard presets (10%, 15%, 18%, 20%, 25%), split bills evenly among guests, and round totals to clean integers.
Virtual Polyhedral Multi-Dice Roller
Roll polyhedral tabletop RPG dice (d4, d6, d8, d10, d12, d20, d100) in bulk with modifiers, live roll histories, and hardware cryptographic randomness.
Random Name Picker & Raffle Ticket Wheel
Select unbiased winners, raffle contestants, or team duty assignees from any list of names with support for weighted tickets and auto-removal.
Interactive 3D Coin Flip & Probability Simulator
Settle decisions and simulate binomial probability with animated 3D coin tosses, streak counters, and rapid 100 to 1,000 flip bulk simulations.
Cryptographic Password & Passphrase Generator
Generate high-entropy, breach-resistant passwords using the native Web Cryptography API with character set toggles and Shannon entropy ratings.
Text to International Morse Code Audio Player
Translate alphanumeric text into standardized ITU Morse code (• and —) and synthesize authentic 550Hz CW audio tones with adjustable WPM playback speeds.
The 200-tool roadmap
ASG Tools grows in phased batches. Batch 1 ships the twelve flagship tools above — the highest-repeated friction points from our user research. Each following batch adds a full category dossier: every tool specified with its problem statement, Web-API mechanism and test cases, built to the same zero-upload contract.
- Batch 1
Flagship launch
12 tools across 6 categories — live now
- Batch 2
Text & encoding
Base64, URL encode, hash generators, diffs
- Batch 3
Media expansion
Image compressors, favicon kit, audio tools
- Batch 4+
The long tail
Formatting, calculators, generators — to 200
Plans that respect privacy
The freemium ladder keeps every tool usable for free, forever. Credits exist only to keep heavy automated usage fair — they are stored locally in your browser, and guests can crawl and use everything Googlebot can.
Guest
Free
Zero friction
- 5 uses per tool per day
- No signup, no email, no cookie wall
- Full tool functionality — nothing disabled
- Perfect for one-off tasks
Free Account
Free
For daily drivers
- 50 welcome credits
- +15 credits reloaded every 24h
- Local history & saved presets
- Cross-tool credit pool
Pro
$5/mo
For power users
- Unlimited uses on every tool
- Ad-free interface
- Unlimited batch processing
- Supports the free tier directly