Format, beautify, and validate JSON instantly in your browser. Paste your JSON and get perfectly indented, syntax-highlighted output with real-time error detection. Free, fast, and private — your data never leaves your browser.
Open JSON FormatterPaste unformatted or minified JSON and get beautifully indented output instantly. Supports custom indentation (2 or 4 spaces, tabs) and handles deeply nested structures with ease.
Tidy Code validates your JSON as you type, showing exact line numbers and clear error messages for missing commas, brackets, quotes, and other common issues.
Explore your JSON visually with a collapsible tree view. Navigate complex objects and arrays, see data types at a glance, and quickly find the data you need.
Compress your JSON by removing all whitespace with a single click. Perfect for reducing payload size for APIs and configuration files.
Convert JSON to YAML, XML, or TOML with one click. Tidy Code preserves your data structure, handles nested objects and arrays, and produces clean, well-formatted output.
Handle JSON files up to 100MB+ thanks to WebAssembly-powered parsing. Format large API responses, database exports, and log files without your browser slowing down.
Paste your JSON into the Tidy Code editor and it will be automatically formatted with proper indentation and syntax highlighting. You can also click the Format button or press Ctrl+Shift+F to beautify your JSON.
Yes. Tidy Code automatically validates your JSON as you type, highlighting syntax errors with line numbers and helpful error messages so you can quickly find and fix issues.
Yes. Tidy Code supports converting JSON to YAML, XML, and TOML formats with a single click. The conversion preserves your data structure and handles nested objects and arrays.
Yes, Tidy Code's JSON formatter is completely free with no signup required. Your data stays in your browser and is never sent to any server.