How to use JSON Formatter
What does it do?
Formats and validates JSON, or minifies it to one line.
What you need
JSON text.
Steps
- Paste the JSON.
- Press “Format” to tidy it or “Minify” to shrink it.
- Press “Copy” to copy the result.
What you get
Readable, indented JSON — or a message showing where the error is.
Tips for better results
- The error message helps you find a missing comma or bracket.
- Use “Minify” before pasting data into code.
Requirements
Free for everyone, no sign-in needed. Runs in your browser and does not upload your files to any server.
Top 4 uses
1Debugging
A developer finds an error in an API response.
2Reviewing config
An admin reads a long settings file.
3Documentation
A technical writer tidies JSON examples.
4Smaller payloads
A developer minifies data before sending it.
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