Paste JSON to beautify, minify, or validate it — invalid JSON is flagged with the exact line and column. Or convert it to CSV or TypeScript. Everything runs in your browser; nothing is uploaded.
Format / beautify and minify JSON, validate with exact error locations, and convert JSON to CSV or TypeScript. Escape and unescape string literals. All client-side.
The validator shows the error and the line/column where parsing failed — usually a trailing comma, missing quote/brace, single quotes, or unquoted keys.
Yes. It runs entirely in your browser with JavaScript; nothing is uploaded.
CSV (from an array of objects) and TypeScript interfaces, with more converters coming.