Free Online Developer Tools
Powerful developer utilities that run 100% in your browser. No data leaves your device. Fast, secure, and always free.
Go Native with ToolGrid
NewExperience the power of local-first development. Built with Rust for blazing speed. 100% offline, zero latency, and keeps your secrets local.
All Tools (29)
URL Encoder
Encode or decode URLs securely.
Base64 Encoder
Encode and decode Base64 strings.
Character Counter
Count characters, words, and lines.
JSON Formatter
Beautify and validate JSON data.
Diff Checker
Compare text or code side-by-side.
Hash Generator
Generate MD5, SHA-1, SHA-256 hashes.
SVG to PNG
Convert SVG code or files to PNG.
URL Parser
Analyze URL components and params.
YAML to JSON
Convert between YAML and JSON.
Image Compressor
Compress PNG, JPG & WebP images locally.
JWT Decoder
Decode and inspect JWT tokens.
UUID Generator
Generate random UUIDs instantly.
Color Converter
Convert colors between HEX, RGB, HSL.
Cron Generator
Build cron expressions visually.
Regex Tester
Test regular expressions live.
CSV to JSON
Convert CSV data to JSON format.
Text Case Converter
Convert between camelCase, snake_case, kebab-case, and more.
HMAC Generator
Generate HMAC-SHA256 and HMAC-SHA512 signatures.
JSON to CSV
Convert JSON data to CSV format.
HTML Beautifier
Beautify and minify HTML code.
Password Generator
Generate secure random passwords.
Slug Generator
Convert text to URL-friendly slugs.
Lorem Ipsum Generator
Generate placeholder text for mockups.
Text Encryption
Encrypt and decrypt text with AES.
Unix Timestamp
Convert timestamps to dates and vice versa.
CSS Minifier
Minify CSS to reduce file size.
QR Code Generator
Generate customizable QR codes instantly.
Age Calculator
Calculate your exact age in years, months, and days.
Date Difference Calculator
Calculate duration between two dates.