YAML online formatting tool | One-click beautification, compression, and optimization of YAML code

A free online YAML formatter that beautifies YAML code with one click, supporting syntax highlighting and automatic indentation. No installation required, just open and use it right away. It's perfect for organizing configuration files, optimizing the layout of Kubernetes manifests, and project descriptions.

Inspiration

Configuration files are often difficult to read due to cluttered indentation or comments. This tool aims to transform messy YAML into clear, standardized text, reducing typographical errors and improving maintenance efficiency.

How to Use

1. Paste the YAML content into the text input area at the top of the page.

2. Click "Format" to view the results in the output window at the bottom of the page and preview the syntax highlighting in real time.

3. After formatting, you can copy the YAML content with one click.

Application Scenarios

• Managing Configuration Files: Unify YAML formatting across projects.

• Kubernetes / Helm: Quickly beautify resource lists for improved readability.

• Documentation and Examples: Generate neat configuration examples for tutorials or READMEs.

• Quick Sharing: Temporarily organize snippets and copy and paste them to colleagues or the community.

Implementation Principle

Based on the open-source Prettier framework, it automatically recognizes YAML syntax and rearranges it according to rules, achieving the purpose of beautifying YAML code. Formatting can be completed on the web page without local installation.

FQA

1. Do I need to install or register?

   No installation or registration required, just use it directly from the web.

2. Will my input be saved or leaked?

   By default, it's only used for immediate formatting and not stored permanently. Please refer to the Privacy Statement for details on data handling.

3. What YAML features are supported?

   Supports mappings, sequences, anchors/aliases, wrapping strings, and optimized formatting for common comments.

4. What if my YAML contains syntax errors?

   The tool will detect and display errors with approximate line numbers to help you locate and correct them before formatting.