How to use the YAML Formatter
- Paste your YAML into the input box, or open a file.
- The output updates automatically as you type.
- Copy the YAML or download it as a file.
About YAML
YAML is an indentation-based format used for Kubernetes manifests, Docker Compose, GitHub Actions, OpenAPI specs and countless config files. It is a superset of JSON that favours readability.
How it works
The document is parsed and re-serialized with two-space indentation. Comments are not preserved.
Private by design
Developer data is often sensitive: API responses, tokens, customer records, internal configs. This YAML Formatter processes everything locally in your browser tab. There is no server round-trip, no logging and no storage of your input.
Frequently asked questions
Is this YAML Formatter free?
Yes. This YAML Formatter is completely free to use with no sign-up, no limits and no ads inside the tool.
Is my data uploaded to a server?
No. The YAML Formatter runs entirely in your browser using JavaScript. Nothing you paste is sent to DevT Pro or any other server.
Can I use these tools offline?
Yes. DevT Pro is a native app for Mac, Windows, iPad and Linux with 120+ developer tools that work fully offline, for a $5.99 one-time purchase.
