How to use the TOML to CSV
- Paste your TOML into the input box, or open a file.
- The output updates automatically as you type.
- Copy the CSV 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.
About CSV
CSV (comma-separated values) is the universal format for spreadsheets and data exports. The first row holds column names and each following row is one record.
How it works
Nested objects are flattened into dot-separated column names (for example address.city) and arrays are written as JSON inside a cell. If your TOML wraps a list in an object, the list is used as the rows.
Private by design
Developer data is often sensitive: API responses, tokens, customer records, internal configs. This TOML to CSV 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 to CSV free?
Yes. This TOML to CSV 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 to CSV runs entirely in your browser using JavaScript. Nothing you paste is sent to DevT Pro or any other server.
Does the TOML to CSV conversion lose data?
Nested objects are flattened into dot-separated column names (for example address.city) and arrays are written as JSON inside a cell. If your TOML wraps a list in an object, the list is used as the rows.
Can I use the TOML to CSV offline?
Yes. TOML to CSV 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.
