How to use the TOML Formatter
- Paste your TOML into the input box, or open a file.
- The output updates automatically as you type.
- Copy the TOML or download it as a file.
About TOML
TOML is a minimal configuration format with clear key = value pairs and [sections]. It powers Cargo.toml, pyproject.toml, Hugo and many other tool configs.
How it works
The file is parsed and re-serialized, which normalizes spacing, quoting and table layout. Comments are not preserved.
Private by design
Developer data is often sensitive: API responses, tokens, customer records, internal configs. This TOML 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 TOML Formatter free?
Yes. This TOML 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 TOML Formatter runs entirely in your browser using JavaScript. Nothing you paste is sent to DevT Pro or any other server.
Can I use the TOML Formatter offline?
Yes. TOML Formatter is also built into DevT Pro, a native app for Mac, Windows, iPad and Linux with 120+ developer tools that work fully offline. It is a $5.99 one-time purchase with no subscription.
