YAML Formatter
Stop struggling with indentation errors in your configuration files. Our free online YAML formatter instantly cleans up messy code, ensuring consistent spacing and improved readability for your project files.
Stop struggling with indentation errors in your configuration files. Our free online YAML formatter instantly cleans up messy code, ensuring consistent spacing and improved readability for your project files.
Best Practice
Always use spaces instead of tabs in YAML. Most linters will throw an error if tabs are detected.
Did You Know?
YAML is a superset of JSON, meaning most valid JSON files are also valid YAML files.
YAML (YAML Ain't Markup Language) is a human-friendly data serialization standard that is commonly used for configuration files. Its minimalist design makes it easy for humans to read and write, but its reliance on indentation makes it prone to errors. It is the industry standard for tools like Docker, Kubernetes, and GitHub Actions, where precise formatting is critical for functionality.
Tip
Use a linter like yamllint to catch semantic errors that formatting alone might not fix.
prettier or yamllint into your pre-commit hooks to catch errors before they reach your repository..prettierrc file in your root directory to share formatting rules across your entire team.Q: Does this tool support multi-document YAML files?
A: Yes, the formatter correctly handles files containing multiple documents separated by three dashes (---).
Q: Is my data secure when using the Codemata YAML formatter? A: Absolutely. Our tools process your code locally in your browser, meaning your configuration data is never sent to our servers.
Q: Why is my YAML file failing to format? A: YAML is strict about indentation. Ensure you aren't mixing tabs and spaces, as this is a common cause of syntax errors that prevent formatting.
Q: Can I use this for Kubernetes manifest files? A: Yes, this is ideal for cleaning up Kubernetes K8s manifests, Docker Compose files, and CI/CD configurations.
Best Practice
Stick to a 2-space indentation rule; it is the most widely accepted standard in the DevOps community.