Editing and formatting documents
A browser-based JSON editor helps you clean up API responses and configs: syntax highlighting, structure checks, and export without sign-up. Data stays on your device—nothing is uploaded to our servers.
Paste text with highlighting
Paste from the clipboard, drop a file, or start empty. Colors separate keys, strings, numbers, and errors so mistakes stand out immediately.
Smart quotes from logs and office apps are normalized automatically so the parser does not fail on the first character.
Compress and align indentation
Pretty-print adds readable indentation for reviews and documentation. Minify removes whitespace when you need a compact POST body.
Invalid structure shows a line hint—you do not need a separate validator tab.
Export and clear the input
Download the result or copy it in one action. Clear resets the field without reloading the app.
After formatting, open the tree view in the same project to hunt fields in large objects faster.