JSON Viewer & Formatter
Paste JSON to validate, beautify or minify it, and explore it as a collapsible tree — all in your browser.
Valid JSON will appear here as a tree.
About the JSON viewer
This tool helps you read and clean up JSON. Beautify re-indents messy or minified JSON so it's easy to read, Minify strips whitespace to the smallest valid form, and the Tree view lets you expand and collapse nested objects and arrays. If the JSON is invalid, you'll get the exact error and position.
Everything runs locally in your browser — your data is never uploaded or stored, so it's safe to paste API responses, config files and tokens.