JSON Formatter & Beautifier
Paste JSON to format, beautify, or minify it. Auto-processes as you type.
Related Tools
How to Format JSON Online
Unformatted JSON is tough to read, especially when you're debugging API responses or reviewing config files. A JSON beautifier takes minified or single-line JSON and reformats it with proper indentation, making the structure immediately visible. This tool parses your input client-side and outputs clean, indented JSON — no data leaves your browser.
Paste in a raw API response, a stringified JSON blob from your logs, or a minified config file, and you'll get a neatly indented version you can actually read. This is particularly useful when you're working with deeply nested objects or arrays where the hierarchy matters — like Terraform state files, OpenAPI specs, or GraphQL introspection results.
Unlike server-based formatters, everything here runs in your browser using JSON.parse() and JSON.stringify(). Your data never hits a server, which matters when you're working with production payloads, tokens, or anything you wouldn't paste into a random website.
Tips
- Use
Cmd+Enter(orCtrl+Enter) to format instantly without clicking the button. - If formatting fails, check for trailing commas or unquoted keys — common issues when copying from JavaScript objects.
- Need compact JSON instead? Most formatters can minify too — just set indentation to 0 spaces.
- Pipe
curloutput throughjq .locally, or paste it here when you need a quick visual check.