Developer
JSON formatter
Beautify or minify JSON with 2-space, 4-space, or tab indentation.
Free to use · Runs in your browser · No signup
This tool works in your browser. Enable JavaScript to select files and create your download.
How to use JSON formatter
- Paste your JSON.
- Choose the indentation, or Minify for a single line, and optionally sort keys.
- Copy or download the formatted JSON.
What you need
Nothing to upload. Type or paste directly into the tool; results update as you go.
Your result
Formatted or minified JSON.
Before you start
Invalid JSON shows the problem and its line and column. Very large numbers lose precision beyond what JavaScript can represent exactly.
Questions about JSON formatter
How do I use JSON formatter?
Paste your JSON. Choose the indentation, or Minify for a single line, and optionally sort keys. Copy or download the formatted JSON.
What does JSON formatter produce?
Formatted or minified JSON.
What should I check before using JSON formatter?
Invalid JSON shows the problem and its line and column. Very large numbers lose precision beyond what JavaScript can represent exactly.
Is what I type sent anywhere?
No. The calculation runs in your browser, and the text or numbers you enter are not uploaded or stored.