JSONCraft
Beautify, minify, and validate JSON. Search any key or path, export arrays of objects to CSV, and explore the whole structure as a collapsible tree.
Format one payload, process multiple JSON files in bulk, or test an API response. Formatting stays local; an API request is sent only to the URL you explicitly enter. Free forever and built courtesy of RapidXAI.
Select multiple `.json` files and format them locally in one batch.
Quick API call
Call a CORS-enabled endpoint and inspect the status, headers, JSON structure, and formatted response. Requests go directly from your browser to the URL you enter.
Learn more about JSONCraft, read the privacy policy, or check the FAQ.
Bored? Play a quick game of Snake
Arrow keys / WASD, or swipe on mobile.
How JSONCraft works
Format & minify
Pretty-print with clean 2-space indentation, or strip every byte of whitespace for the smallest possible payload.
Validate with precise errors
Invalid JSON returns the exact line and column of the syntax error, so you fix it in seconds instead of scanning a wall of text.
Search keys & paths
Type a key, a value, or a dotted path likeusers.0.email and every match lights up in the tree.
Export to CSV
An array of flat objects becomes a proper CSV with a header row, correct quoting, and a one-click download.