YAML Formatter
Format, validate and sort YAML with error line reporting and a JSON view toggle.
Parses with the yaml package (YAML 1.2 core schema), so anchors, multi-doc caveat: first document only, flow style and comments-in-place errors are reported with line/column. JSON input converts straight to YAML.
About YAML Formatter
Format, validate and sort YAML with error line reporting and a JSON view toggle.
YAML Formatter gives you clean, copy-paste-ready code: paste your source, choose the options, and the formatted output appears instantly.
How to Use YAML Formatter
- Paste your code, markup or configuration into the editor.
- Choose the output format or options offered.
- The formatted result updates live.
- Copy or download the finished code.
Key Features
- Clean, consistently formatted output ready to paste.
- Supports the common formats used in web development.
- One-click copy and download — no build step required.
Frequently Asked Questions
Can I copy the code generated by YAML Formatter?
Yes — every result has a copy button (and often a download option), so the output goes straight into your editor or page.
Is YAML Formatter free to use?
Yes. YAML Formatter is completely free with unlimited use — no account, download or payment required.
Is my data uploaded to a server?
No. YAML Formatter runs entirely in your browser. Your inputs are never sent to our servers or stored anywhere.
Does YAML Formatter work on mobile?
Yes. The interface is fully responsive and works in any modern browser on Android, iPhone, tablets and desktops.
Related Code Tools
Htaccess File Generator
Generate .htaccess configuration files for redirects, caching, compression and security.
HTML5 Validator
Check HTML code for common errors and HTML5 standard compliance.
Online HTML Editor
Write HTML code online with a live preview pane.
XML Schema Generator
Convert XML files into structured XSD schemas for validation.