JSON Formatter / Minifier
Format or minify JSON data.
Frequently asked questions
What does a JSON formatter do?
It indents JSON data so it becomes readable, or removes all whitespace (minify) to make it smaller. Invalid JSON is detected along the way.
Can I paste API responses containing tokens?
Yes. Since nothing is sent to a server, sensitive data such as tokens or customer data stays on your computer.
How does this tool work?
The JSON tool helps you organize unstructured or difficult-to-read JSON data clearly.
Paste your JSON data into the field. Select "Format" to get a structured view with indentations, which also checks for syntax errors. Use "Minify" to remove all whitespace and breaks to make the data compact for APIs.
Where are my data processed?
Only in your browser. Your data is not sent to any server.
The tool calculates and converts with JavaScript right on your device. Input and files are not sent to us or anyone else. You can check this yourself: load the page, disconnect from the internet, and the tool keeps working in the open tab.