JSON Formatter Online

Free JSON formatter and validator to beautify, validate, repair, minify, and inspect JSON locally in your browser.

JSON formatter workspace The interactive tool loads here immediately.

What is JSON Formatter

Aruvix JSON Formatter helps developers clean, validate, repair, minify, and inspect JSON without uploading data to a server. A JSON formatter turns compact, hard-to-read JSON into structured, indented output. Aruvix also validates syntax, highlights errors, supports minified output, and gives you tree and table views for inspecting nested data.

Why use JSON Formatter

Use it when API responses, logs, configuration files, or copied payloads need to be cleaned up before debugging, sharing, comparing, converting, or validating.

Features

  • Beautify JSON
  • Minify JSON
  • Validate JSON
  • Tree view
  • Syntax highlighting
  • Error detection

How to use

  1. Paste JSON into the source editor.
  2. Choose Format, Validate, Minify, or Repair.
  3. Review the formatted output, tree view, table view, type view, or schema output.
  4. Copy or download the result for your next workflow.

FAQ

Is this JSON formatter free?

Yes. Aruvix JSON Formatter runs in the browser and is free to use without an account.

Can it validate invalid JSON?

Yes. The formatter reports JSON syntax errors and includes repair tools for common malformed payloads.

Does my JSON leave the browser?

No. Formatting, validation, minify, tree view, and conversion actions run locally in your browser.

What are the limits of the repair tool?

Repair is meant for common JSON mistakes such as missing quotes, trailing commas, and copied log fragments. I still recommend reviewing the repaired output before using it in production.

Can it handle large JSON files?

Yes, within the memory limits of your browser and device. Very large payloads may trigger heavier processing safeguards so the page stays responsive.

When should I use tree, table, type, or schema views?

Use tree view to inspect nested data, table view for array-like records, type view to understand inferred shapes, and schema output when you need a starter contract.

Can I copy or download the result?

Yes. The formatter includes copy and download actions so cleaned JSON can move directly into debugging, tickets, docs, or another Aruvix tool.