YAML Indent Validator
Paste YAML to check its indentation — tabs, inconsistent indent steps, trailing spaces, and syntax errors are flagged with line numbers. Everything runs in your browser.
2 errors, 1 warning found.
- Line 6 — Indent of 3 spaces is not a multiple of the detected 2-space step.
- Line 6 — YAML parse error: bad indentation of a mapping entry
- Line 8 — Tab character in indentation — YAML only allows spaces.
How to use this tool
- Paste your YAML into the input box.
- Review the per-line indentation warnings and parse errors.
- Fix the flagged lines and re-check until the YAML is clean.