Convert JSON config into TOML, the format used by Cargo, pyproject and many modern tools that want config to be obvious and typed. This converter parses your JSON and emits TOML with top level key value pairs, nested tables in the bracketed header style, and arrays written inline, quoting strings and escaping special characters correctly. Booleans, numbers and strings map to their TOML equivalents, and nested objects become their own dotted table sections so the output stays readable and valid. It targets the common config shapes people actually write rather than every edge of the TOML spec, which keeps it fast and predictable. Paste your JSON, click convert, and copy the TOML into your project file. Everything runs locally in your browser, so private config values are never transmitted to any server.
JSON objects become TOML tables, and key-value pairs become TOML assignments with the appropriate scalar, array or nested table form.
TOML is common config for Rust Cargo, Python packaging and many other tools, so this helps port JSON config into those ecosystems.
Yes. Nested objects become nested TOML tables so the structure carries over.
Convert JSON config into TOML, the format used by Cargo, pyproject and many modern tools that want config to be obvious and typed. This converter parses your JSON and emits TOML with top level key value pairs, nested tables in the bracketed header style, and arrays written inline, quoting strings and escaping special characters correctly.
Yes. JSON to TOML is completely free, with no sign-up and no usage limits.
Yes. JSON to TOML runs in any modern web browser. There is nothing to download or install.
Yes. JSON to TOML runs entirely on your device in your browser, so nothing you enter is uploaded to a server.