Convert TOML ↔ JSON Free – Fast Data Converter

Convert between TOML and JSON formats instantly.

TOML

JSON

Frequently Asked Questions

TOML (Tom's Obvious, Minimal Language) is a configuration file format that is easy to read due to obvious semantics. It is commonly used in Rust (Cargo.toml), Python (pyproject.toml), and static site generators.
Yes! Most data structures in JSON map directly to TOML tables and arrays. However, TOML is strictly for key-value structures, so an array must usually be the value of a key at the root level.
Absolutely. The conversion is performed entirely in your browser. No data is sent to any external server.