Beautify, minify, validate, and debug JSON. All client-side, no data leaves your browser.
Privacy-first: All processing happens in your browser. Your data never reaches our server — or anyone else's. This makes it safe for API responses that contain sensitive data.
Feature-packed: Format (beautify) JSON with configurable indent, minify for production, validate syntax with detailed errors including line and column numbers, and load sample data to test the tool.
Developer-friendly: Dark theme editor with monospace font, keyboard shortcuts ready, and instant stats (lines, characters, keys, depth).