Valid TOML
- title = "Example app"
- [server]
- port = 8080
format validator
TOML Validator
Parse TOML snippets in-browser to catch syntax errors fast and keep config changes safe.
Results
Processing…- Status
- Processing...
- Details
- Processing...
- Top-level keys
- Processing...
- Line count
- Processing...
- Formatted output
- Processing...
Rules & checks
Uses a full TOML parser (client-side) to catch syntax issues.
Reports line and column numbers when parsing fails.
No data leaves your browser; nothing is stored or transmitted.
When to use it
- Check TOML before committing Cargo or Hugo config changes
- Validate snippets pasted from docs or user input
- Quick pre-commit sanity check without leaving the browser
Tips
- Keep keys simple and consistent; avoid trailing commas in arrays
- Group related settings under tables (e.g., [server], [database])
Examples
Trailing comma error
- features = ["a", "b", ] -> parser flags trailing comma
Missing equals
- name "value" -> parser points to line/column
FAQs
- Do you store my config?
- No. Parsing happens locally in your browser and clears on refresh.
- Does this enforce schemas?
- No. It checks TOML syntax only; apply your schema rules in CI/CD.
Related validators
Syntax validation only; does not enforce schema or business rules.