JSON Formatter is a json formatter that beautifies and minifies JSON right in your browser. You paste JSON or open a .json file, and it comes back indented and readable, or minified to one line. Your text never leaves your device: nothing is sent to a server, nothing is stored, and it spends no credits.
JSON from an API, a log or a config file often arrives as one long line. That is fine for a machine and hard for a person. Formatting, also called beautifying or pretty printing, puts each key on its own line with consistent indentation, so you can read the structure, spot a missing field and compare two versions.
How do I make JSON readable?
- Indentation. Pick 2 spaces, 4 spaces or tabs, whichever your project uses.
- Sort keys. Turn it on to list every object’s keys in order. Two files with the same data then line up, which makes a diff much easier to read.
- Copy or download. Take the result back to your editor, or save it as a .json file.
How do I minify JSON?
Pick Minify instead of Format. Every space and line break between values goes, and the data stays the same. Use it when you need the smallest text to paste into a request, an environment variable or a single line of config.
What if the JSON is broken?
The formatter needs JSON it can read, so if something is wrong it shows the error with the line and column instead of a result. For checking as the main job, with a jump to the exact spot as you type, use the JSON Validator. Working with YAML or .yml files instead? The YAML Formatter does the same job for those, comments included.
Who it’s for
- Developers reading API responses and logs.
- Anyone cleaning up a config file before committing it.
- Analysts and marketers handling exports and webhooks.
- People who don’t want to paste private data into a stranger’s server.
FAQ
Is my JSON sent to a server?
No. Formatting runs entirely in your browser. Your text never leaves your device and nothing is stored.
Does formatting change my data?
No. Format and Minify only change the spaces and line breaks. With Sort keys on, keys change order inside each object, and the values stay the same.
What does it cost?
It comes with the Nexin library: Nexin Lite or Nexin Pro opens it, and it spends no credits.
