TOML Validator
Check TOML for syntax errors and inspect the structure it produces.
Your result will appear here as soon as you add some input.
How to use it
- 1Paste your document into the input box, or type it directly.
- 2Adjust the options if you need something other than the defaults.
- 3The result updates as you type.
- 4Copy the result to your clipboard or download it as a file.
About the TOML Validator
TOML is strict in ways that catch people out: a table cannot be defined twice, keys must be unique within a table, and a string containing a backslash must be a literal string or have the backslash escaped.
The parsed structure is shown as a tree, which is the quickest way to confirm that `[tool.poetry.dependencies]` nested the way you intended.
Questions people ask
Is your document uploaded to a server?
No. This tool runs entirely in your browser using standard web APIs, so your document never leaves your device. You can confirm it by opening your browser's network panel while the tool runs, or by disconnecting from the internet after the page has loaded.
Is it free, and do I need an account?
Yes, it is free, and there is no account, no sign-up and no watermark on the result. The project is funded by optional donations.