Developer Tools

Essential free developer utilities including JSON formatter, CSV to JSON converter, and code validators. Our JSON beautifier and minifier validates syntax, formats code with proper indentation, and minifies for production—all client-side for maximum security. Convert CSV files to JSON instantly with our free data transformer, perfect for API development and database migration. Decode JWT tokens safely to inspect headers and payloads without sending sensitive data to external servers. Generate cron expressions with our easy cron scheduler tool that translates complex syntax into plain English. Preview Markdown in real-time with our GitHub-style renderer. Compare code changes with our diff viewer that highlights additions, deletions, and modifications. All tools process data locally in your browser, ensuring your code and credentials remain private and secure.