Beautify, minify and validate JSON without uploading your data.
Paste JSON to make it easier to read, reduce it to a compact form, or check whether the syntax is valid. Everything runs locally in your browser, which is useful when inspecting API responses, configuration files or development payloads that you do not want to upload to another service.
No. Formatting and validation happen locally in your browser.
No. Formatting changes whitespace and indentation, not the parsed JSON values.
Readable JSON makes nested objects, arrays and values easier to inspect. Formatting is useful when working with API responses, configuration files, webhooks or copied data that arrives on one compressed line.
Validation helps identify missing commas, unmatched brackets and other syntax problems before the data is used by an application. Do not paste secrets, private keys or credentials into any tool unless you understand how the data is processed.
Pretty formatting does not change the underlying JSON data when the input is valid; it only adds indentation and line breaks for readability. After fixing syntax errors, validate again before pasting the JSON back into a configuration or API request.