Format JSON
Paste minified or messy JSON and get a readable, indented, validated result — processed entirely on your device.
How to use JSON Formatter
- 1Paste or type your text, data, or values into the input area.
- 2Adjust any options — format, length, or style.
- 3Copy the result or download it, generated instantly in your browser.
Why use FileDagadu
- Runs entirely in your browser — nothing is uploaded to a server
- No account, signup, or watermark required
- Works on desktop, tablet and mobile
- Free with no daily usage limit
Frequently asked questions
What is JSON Formatter?
JSON Formatter is a free online tool from FileDagadu. Beautify and validate JSON data. It works directly in your browser, so there is nothing to install.
Is json formatter free to use?
Yes. JSON Formatter is completely free, with no signup, no watermark and no daily limit.
Are my files uploaded to a server?
No. Everything you type or paste is processed in your browser on your own device and is never sent to FileDagadu servers.
Does json formatter work on mobile?
Yes. FileDagadu works in any modern browser on Android, iPhone, tablets and desktop computers — no app needed.
What else can I do with FileDagadu other tools?
Browse the related tools below, or explore all FileDagadu tools for images, PDFs, calculators, text and developer utilities.
Guides & tips
Related tools
QR Code Generator
Generate a QR code from text or a link.
Barcode Generator
Create barcodes for products and labels.
Word Counter
Count words, characters and reading time.
Character Counter
Count characters with and without spaces.
JSON Minifier
Minify JSON to save space.
JSON to CSV
Convert JSON arrays into CSV files.