Format, Indent, and Validate API Payload JSON

Turn messy, unformatted backend responses and payload bodies into clean, human-readable JSON in one click.

Step by step

  1. 1

    Paste Payload

    Paste your raw JSON text directly into the editor pane.

  2. 2

    Select Spaces

    Choose your preferred indentation style and toggle key sorting if desired.

  3. 3

    Copy Output

    Copy the beautified JSON to clipboard or save it as a local .json file.

Configurable Indentation

Switch between 2 spaces, 4 spaces, or tabs to match your codebase formatting standards seamlessly.

Alphabetical Key Sorting

Sort object keys alphabetically to easily compare staging and production response payloads side by side.

Frequently asked

Does this tool support YAML or JSON5?

No, this tool enforces strict standard JSON syntax. Comments and trailing commas are marked as errors.

Will my API keys or tokens be leaked?

No, all parsing happens entirely client-side in your browser. No data ever touches a remote server.