JSON Tools
Validate, format, and minify JSON locally in one workspace.
How to use
- Paste JSON or select Upload Data to open a local file.
- Validate syntax, Format with your chosen indentation, or Minify into compact JSON.
- Review the output and select Download to save the result.
About this tool
Validate, format, and minify standard JSON in one workspace. Validation reports the root type and native parsing errors, with line and column when available. Formatting supports 2 spaces, 4 spaces, or tabs. Minified output wraps visually while remaining one logical line. All processing stays in your browser; invalid input is preserved for editing.