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Tools / TOML converter

TOML converter

Easily translate Cargo.toml, pyproject.toml, and static-site configuration files between TOML, JSON, and YAML formats. Runs entirely in your browser with instant copy and download capabilities.

Runs entirely in your browser

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About this tool

TOML is the configuration format used by tools like Rust’s Cargo and Python’s pyproject, chosen for being clear and unambiguous. This converter translates TOML to and from JSON and YAML, so you can move configuration between these formats or inspect a TOML file in whichever you find easier.

It handles the real files you meet — Cargo.toml, pyproject.toml, static-site configs — and runs entirely in your browser with instant copy and download. Converting to JSON is handy when a tool or script needs to read config programmatically; converting to YAML suits pipelines that prefer it.

Because it is client-side, your configuration is not uploaded. Paste the TOML (or JSON/YAML) and get the equivalent in another format.

Frequently asked questions

What formats does it convert between?
TOML, JSON and YAML, in either direction, so you can translate configuration between the three.
What kinds of files is it for?
TOML config files such as Cargo.toml and pyproject.toml, plus static-site configuration, though it works on any valid TOML.
Why convert TOML to JSON or YAML?
To read config programmatically (JSON), to fit a pipeline that expects YAML, or simply to inspect a file in a format you prefer.
Is my config uploaded?
No. Conversion runs in your browser, so your configuration stays on your device.

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