How to use the TOML Viewer
- Paste your TOML or open a file.
- The view updates automatically.
- Expand and collapse nodes to explore the structure.
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.
Private by design
Developer data is often sensitive: API responses, tokens, customer records, internal configs. This TOML Viewer 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 Viewer free?
Yes. This TOML Viewer 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 Viewer runs entirely in your browser using JavaScript. Nothing you paste is sent to DevT Pro or any other server.
Can I use the TOML Viewer offline?
Yes. TOML Viewer 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.
