I've been building DevTools.run nonstop. We're at 240+ tools now, all free, all browser-based.
Here's every category:
JSON & Data (8 tools)
JSON Formatter, JSON Editor (tree view), JSON to CSV, JSON to TypeScript, JSON Validator, JSON Path, CSV Viewer, XML Formatter
Regex & Text (10 tools)
Regex Tester, Text Compare/Diff, Character Counter, Word Counter, Lorem Ipsum, Text to Speech, Speech to Text, Markdown Preview, Markdown to HTML, HTML to Markdown
Encoding & Hashing (8 tools)
Base64 Encoder, URL Encoder, HTML Entity Encoder, Hash Generator (SHA-256/512), JWT Decoder, Image to Base64, UUID Generator, Password Generator
CSS & Design (15 tools)
CSS Grid Generator, Flexbox Playground, Glassmorphism Generator, CSS Animations, Text Shadow, Clip-Path, Box Shadow, Gradient Builder, Color Palette Generator, Color Converter, Color Blindness Simulator, Font Size Converter, SVG Editor, SVG to CSS, Tailwind↔CSS converters
Code Tools (8 tools)
Code Formatter (JS/CSS/HTML/SQL), SQL Formatter, HTML to JSX, HTML Minifier, JS Minifier, Crontab Builder, README Generator, CSP Generator
SEO & Marketing (6 tools)
Meta Tag Generator, OG Image Generator, OG Preview, Sitemap Generator, Robots Generator, Privacy Policy Generator
DevOps (5 tools)
Nginx Config, Docker Compose, .htaccess Generator, SSL Checker, HTTP Header Checker
Network (4 tools)
DNS Lookup, WHOIS, IP Lookup, Webhook Tester
Calculators (10 tools)
Scientific, Percentage, Mortgage, Loan, Compound Interest, BMI, Tip, GPA, Salary, Stripe/PayPal Fees
Crypto (5 tools + 990 price pages)
SOL/USD Calculator, Crypto Swap, 990 price conversion pages, Solana Token Lookup, Token Safety Scanner
Utilities (8 tools)
Stopwatch/Timer, Countdown, World Clock, Timezone Converter, Age Calculator, Random Number, Date Calculator, QR Code Generator
Creative (4 tools)
Pixel Art Editor, Text to Image, AI Writing Assistant, Daily Dev Quote
Business (5 tools)
Resume Builder, Invoice Generator, Terms Generator, Hosting Comparison, Link Shortener
Plus a Chrome extension, free APIs, and a Telegram trading bot.
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