YAML Beautifier

Beautify, validate and minify your YAML data with proper indentation and formatting

What is YAML?

YAML (YAML Ain't Markup Language) is a human-readable data serialization standard that is commonly used for configuration files, data exchange, and settings in various applications and frameworks.

YAML uses indentation and simple syntax to represent data structures like lists, dictionaries, and scalar values, making it easier to read and write compared to JSON or XML.

Example:

name: Prettify Code
url: https://prettifycode.com
message: I love prettifycode.com!
features:
  - Beautify
  - Minify
  - Validate
user:
  type: developer
  happy: true

YAML is widely used in Docker Compose files, Kubernetes configurations, GitHub Actions, Ansible playbooks, and many other DevOps and configuration management tools.

What is a YAML Beautifier?

A YAML Beautifier is a tool that formats raw, minified, or poorly structured YAML data into clean, readable format with proper indentation, spacing, and consistent formatting.

Using a YAML beautifier helps you:

  • Fix indentation issues that break YAML parsing
  • Make configuration files more readable and maintainable
  • Validate YAML syntax and catch structural errors
  • Standardize formatting across team projects
  • Debug complex nested YAML structures

If you work with Docker Compose, Kubernetes manifests, or configuration files that use YAML, a beautifier ensures consistent formatting and prevents syntax errors.

Why Prettify Code YAML Beautifier?

There are many YAML formatters available, but Prettify Code's YAML Beautifier offers unique advantages:

  • Fast & Lightweight – Format YAML instantly in your browser
  • Client-Side & Secure – Your YAML data never leaves your device
  • Dark & Light Mode – Comfortable editing in any environment
  • One-Click Copy – Copy formatted YAML with ease
  • Multiple Local Saves – Save and load multiple YAML files locally
  • No Ads or Clutter – Focus purely on your configuration
  • Mobile-Optimized – Format YAML files on any device
  • Part of a Full Dev Toolkit – Explore more tools at PrettifyCode.com

Save and Load YAML Locally

Keep your important configuration files safe and accessible!

Prettify Code YAML Beautifier lets you:

  • Save multiple YAML configurations to local browser storage
  • Load saved configurations anytime without re-typing
  • Edit or overwrite saved YAML files easily
  • Delete old configurations when no longer needed

Your YAML configurations remain completely private on your device — nothing gets uploaded to any server.

How to Use YAML Beautifier

  • Paste or type your YAML data into the editor above
  • Click the "Beautify YAML" button (or press Cmd + Enter / Ctrl + Enter)
  • View the beautifully formatted YAML output with proper indentation
  • Copy or download the formatted YAML for your projects
  • Optionally, save your YAML configurations locally or load previously saved files

Pro Tip

Use keyboard shortcuts like Cmd + Enter (Mac) or Ctrl + Enter (Windows/Linux) to quickly beautify your YAML without clicking the button.

This shortcut speeds up your DevOps workflow — especially when working with multiple configuration files or Kubernetes manifests.

YAML Beautifier FAQs

Common questions about our YAML formatting tool

Can this tool fix YAML indentation errors?

Yes! Our YAML Beautifier automatically fixes indentation issues by parsing your YAML and recreating it with proper, consistent spacing and structure.

Does it work with Docker Compose and Kubernetes files?

Absolutely! Our tool handles Docker Compose files, Kubernetes manifests, GitHub Actions workflows, and any other YAML-based configuration files.

Will beautifying change my YAML data values?

No, YAML beautification only affects formatting like indentation and spacing. Your data values, structure, and meaning remain exactly the same.

Can I format YAML with comments?

Yes, our YAML Beautifier preserves comments while formatting the structure. However, note that some edge cases with complex comment placement might be reformatted.

What's the difference between beautify and minify for YAML?

Beautify formats YAML with proper indentation for readability. Minify converts YAML to compact JSON format, which is useful for data transmission but loses YAML-specific features.

Does this tool validate YAML syntax?

Yes! Use the "Validate YAML" button to check your YAML syntax without formatting. This helps identify errors before deploying configuration files.