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TOML to JSON Converter

TOML ↔ JSON Converter

Convert TOML to JSON and JSON to TOML in either direction

Direction:

TOML Input

About

Convert between TOML and JSON in either direction. Pick a direction, paste your document, and convert. Useful for moving config between Rust/Python tooling (TOML) and the broader JSON ecosystem. Everything runs in your browser; nothing is uploaded.

    About this tool

    Convert TOML to JSON and JSON back to TOML. Both directions, instant, in your browser. Free, client-side, no signup. TOML to JSON Converter runs in the browser on DevTools. There is no signup, and your input stays on this device unless the tool explicitly performs a live network lookup.

    What this tool does not do

    • TOML to JSON Converter is a free in-browser utility, not a hosted API. It does not keep server-side history and is not a substitute for production verification in your own stack.

    How do I use this tool?

    1. How do I use TOML to JSON Converter?

      Open TOML to JSON Converter, enter or paste your input, and copy the result. The page works without an account.

    Related guides

    TOML vs YAML vs JSON: Choosing the Right Config Format

    Why Rust and Python both settled on TOML, what each format actually gives you, and how to validate your Cargo.toml without guessing.

    Moving Configuration Between TOML, JSON and YAML: What Survives the Trip

    Converting config formats sounds trivial until your dates vanish, your comments disappear, and your multiline string gets folded into one line.

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