Paste JSON, XML, YAML, CSV or HTML — auto-detected. Beautify, minify, validate, inspect as a tree and export to other formats.
Tip: Ctrl+Enter to format
Paste any structured data or markup and this tool automatically identifies the format — no manual selection needed. All processing happens in your browser; nothing is ever uploaded to a server.
Beautify compact API responses or minify JSON for production. The validator catches common errors like trailing commas, unquoted keys and mismatched brackets, with a plain-English error message pointing to the problem.
Pretty-print XML with consistent indentation. The formatter preserves XML declarations, namespaces, comments and processing instructions. Self-closing tags are kept compact.
Format YAML configs (Kubernetes, Docker Compose, GitHub Actions, etc.) or convert between flow and block style. Powered by js-yaml, the same parser used in Node.js tooling.
Align CSV columns for easy reading in the Text view, or switch to Tree view to see your data as a sortable table. Upload any .csv file directly from your device.
Indent messy HTML or minify it to reduce page weight. Works on fragments as well as full documents — no <!DOCTYPE> required.
The Export panel converts between formats in one click. Supported conversions: JSON ↔ XML, JSON ↔ YAML, JSON ↔ CSV, XML ↔ YAML, CSV ↔ YAML. The converted output can be copied or downloaded instantly.
After formatting, switch to Tree view to explore deeply nested JSON or XML without scrolling through text. Each node is collapsible. CSV data is rendered as a table for easy scanning.
JSON, XML, YAML, CSV and HTML. The tool auto-detects the format based on the content, so you rarely need to select it manually.
Yes. Use the Convert & Export panel below the editor. Paste your input, click the target format, and copy or download the result. Supported paths: JSON ↔ XML, JSON ↔ YAML, JSON ↔ CSV, XML ↔ YAML, CSV ↔ YAML and their reverses.
Yes. All processing runs in your browser using JavaScript. No data is transmitted to any server. You can even use this tool offline after the page loads.
Format (beautify) adds indentation and line breaks to make code human-readable. Minify removes all unnecessary whitespace to reduce file size — useful for APIs, config deployments and production assets.
The YAML parser (js-yaml) is loaded from a CDN on first use. Once loaded it is cached and instant on subsequent uses.
Yes. Click the Upload button in the input panel and select any .json, .xml, .yaml, .csv or .html file from your device. The format is auto-detected from the file contents.