Show HN: Dev tools that stay out of your way (JSON, Base64, JWT, etc.)

Format & Beautify JSON

Paste minified or unformatted JSON and instantly get a clean, indented, human-readable result. Choose 2-space, 4-space, or tab indentation.

Validate & Detect Errors

Real-time JSON validation with precise error messages. Pinpoint syntax mistakes instantly and auto-fix common issues like single quotes.

Tree View & Minify

Explore nested JSON in an interactive collapsible tree. Minify JSON for production to reduce payload size. Download results as a .json file.

Privacy First

All processing runs entirely in your browser. No data is ever sent to a server. Safe for sensitive or confidential JSON data.