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JSON Formatter & Validator
Beautify, minify and validate JSON instantly. Spot parse errors with line and column references.
Paste JSON to format or validate.
Why Use Our JSON Formatter & Validator?
When APIs, configs, or payloads break, readable JSON saves debugging time. This tool helps you beautify large JSON, minify responses for transport, and validate syntax errors with line/column hints.
Key Features
Instant Output
Get immediate results for formatting, conversions, and validations directly in the browser.
Private by Design
Your data stays local in your browser. No server upload is required for core operations.
How to Use the JSON Tool?
- 1.Paste JSON: Add raw JSON from API response, config file, or request payload.
- 2.Format, Minify, or Validate: Choose the action based on whether you need readability, compact output, or error checking.
- 3.Copy or Download: Use copy for quick sharing or download a JSON file for local use.
Common JSON Validation Issues
| Issue | Example | Fix |
|---|---|---|
| Trailing comma | {"name":"A",} | Remove the final comma |
| Unquoted key | {name:"A"} | Use double quotes: {"name":"A"} |
| Single quotes | {'name':'A'} | Use double quotes for keys and strings |
Frequently Asked Questions
Benefits of JSON Formatting Before Deployment
- ✓Faster bug fixing in request/response payloads.
- ✓Cleaner code reviews for JSON config changes.
- ✓Reliable validation before production API calls.
- ✓Easy sharing with readable indentation.
Related Tools
Ready to Clean Your JSON?
Format and validate your JSON above, then copy or download the clean output.
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