DEVELOPMENT & DATA
Turn compressed or messy JSON into a clean, readable structure. Validate the syntax without sending the content to any server.
JSON EDITOR
Local processing · no accounts · your code is never sent
Paste your JSON object or array, click Format JSON and copy or download the result. If there is a syntax error, you will see a message pointing to where to fix it.
Useful for inspecting API responses, configuration files, test data and exported logs. Formatting does not change the meaning of your data: it only adds indentation and line breaks.
FREQUENTLY ASKED QUESTIONS
No. This tool processes the JSON directly in your browser and never sends it to a server.
It does not guess what you meant to type. It detects errors and lets you fix them safely.