Beautify, minify, and validate JSON. Everything runs in your browser — your data never leaves your device.
Beautify uses two-space indentation. Minify strips all whitespace.
What is a JSON formatter? It cleans up JSON text — making it readable (beautify), compact (minify), or checking it for errors (validate) — all without sending your data anywhere.
Beautify re-formats JSON with line breaks and two-space indentation so it is easy to read. The data is unchanged; only the spacing is added. For example, the input {"a":1} becomes a multi-line block with the key on its own indented line.
Minify removes all unnecessary whitespace to make the JSON as small as possible on one line, which is useful for transmission. Beautify does the opposite, adding indentation and line breaks for readability. Both keep the underlying data identical.
Click Validate. If the JSON parses, you see a confirmation that it is valid. If not, the tool shows the parser's error message along with Invalid JSON so you can find and fix the problem.