22 Free Browser-Based Developer Tools — No Backend, No Tracking
I built 22 developer tools that run entirely in your browser. No server-side processing, no tracking, no accounts.
The Tools
Text & Data: JSON Formatter, Base64 Encoder, URL Encoder, YAML/JSON Converter, Text Diff
Security: Hash Generator (MD5/SHA), JWT Decoder, Password Generator, UUID Generator
Developer: Regex Tester, SQL Formatter, Cron Parser, Unix Permissions, Markdown Preview
Utilities: Timestamp Converter, Color Converter, Lorem Ipsum, QR Code Generator, Aspect Ratio Calculator
Solana: SOL/USD Calculator, Token Lookup, Wallet Checker
Tech Stack
- Next.js 14 App Router
- Tailwind CSS
- Web Crypto API for hashing
- Canvas API for QR codes
- Zero external dependencies for core tools
Open source: GitHub
Also Check Out
- Solana Trading Bot — free on Telegram
- Bot Source Code — 4,100 lines