What is JSON Formatter?
JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write, and easy for machines to parse and generate. JSON Formatter is a free online tool that takes your raw or minified JSON data and formats it with proper indentation, making it much easier to read and debug.
JSON is the most widely used data format for APIs, configuration files, and data storage. Whether you're a developer debugging an API response or a data analyst inspecting a dataset, a JSON formatter is an essential tool in your workflow.
How to Use JSON Formatter?
- Paste your JSON into the input panel on the left. The tool validates and formats it automatically as you type.
- Choose indentation — select 2 spaces, 4 spaces, or tab from the toolbar.
- Use Format to beautify or Minify to compress your JSON into a single line.
- Copy the output to your clipboard or Save it as a
.jsonfile. - Click Sample to load example JSON data for testing.
Common Use Cases
Format API responses to quickly identify data structures and find issues.
Instantly check if your JSON is valid and see exactly where errors occur.
Compress JSON to reduce file size for storage or network transfer.
Format package.json, tsconfig, or any configuration file for readability.