تنسيق JSON

This free online JSON formatter beautifies, validates and minifies JSON in a single pass, directly in your browser. Paste a raw API response, a package manifest or a broken config file and get properly indented, pretty-printed JSON back instantly — with the exact line and character of any syntax error called out instead of a generic failure message.

• Beautify JSON with one click — turn minified or single-line JSON into readable, indented output with consistent nesting, ideal for reviewing API payloads and configuration files.
• JSON validator with precise error locations — the built-in JSON syntax checker points at the missing comma, trailing bracket or unquoted key by position, so debugging a malformed payload takes seconds rather than a manual scan.
• Minify JSON for production — strip every byte of whitespace to shrink request bodies, config bundles and stored payloads before you ship.
• Handles large JSON files — multi-megabyte API responses, log exports and database dumps parse locally without an upload queue or a file-size paywall.
• 100% private — nothing is uploaded — parsing runs in your browser tab using the native JSON engine, so access tokens, customer records and internal payloads never touch a server.

No sign-up, no daily limit and no watermark. Bookmark it as your everyday JSON pretty printer, and pair it with the Data Converter when you need JSON to CSV, XML or YAML instead.