Developer tools
Works Offline — No Internet Required
JSON Formatter
Beautify, minify, and validate JSON in your browser — private and free.
- Mobile Friendly
- Accessibility Tested
- SEO Optimized
- Fast Loading
- Responsive
Version 1.0.0 · Last reviewed
How it worksShow guide
Introduction
JSON Formatter helps you pretty-print or compress JSON payloads while validating syntax locally.
Step-by-step
- Paste JSON into the input.
- Choose indent size.
- Click Beautify or Minify.
- Copy the output.
Worked example
Beautifying {"a":1,"b":[2,3]} yields a readable multi-line document.
Use cases
- Clean up API responses for debugging
- Minify config files before shipping
- Catch invalid JSON before paste into code
Frequently asked questions
Is my JSON uploaded?
No. Parsing and formatting run entirely in your browser.
Related tools
Popular tools
-
API Workbench
Browser-native API client — build or paste cURL requests, inspect responses, manage collections, and store everything in IndexedDB. No backend required.
-
Case Converter
Convert text to UPPERCASE, lowercase, Title Case, sentence case, camelCase, snake_case, or kebab-case.
-
Color Contrast Checker
Check WCAG 2 contrast ratios between foreground and background hex colors.
Was this helpful?
Your feedback stays on this device only — it is not sent to the Bestrao team yet.