Convert JSON objects to TOML configuration format with proper typing and section support. Everything runs locally in your browser.
Convert between JSON, YAML, and TOML formats. Four-direction conversion: JSON↔TOML and YAML↔TOML.
Convert JSON objects to INI config file format with section headers and key-value pairs. Perfect for configuration file generation.
Bidirectional YAML to JSON and JSON to YAML conversion with auto-format detection and real-time preview. Perfect for configuration files, API payloads, and data migration.
Build JSON-RPC 2.0 request objects with method, params, and auto-generated ID.
Visualize JSON structure as an indented tree — see nested objects and arrays at a glance.
TOML (Tom's Obvious Minimal Language) is a config file format used by Rust (Cargo.toml), Python (pyproject.toml), and other tools. It's more readable than JSON for configuration files.
Strings, numbers, booleans, arrays, and objects map directly. Nested objects become TOML sections ([section]). Arrays of objects become [[array-of-tables]].
Yes. Deeply nested JSON objects are converted to properly nested TOML sections. Arrays of objects are converted to TOML array-of-tables syntax.
Yes. The output is valid TOML that can be used directly in Cargo.toml, pyproject.toml, or any TOML-based configuration file.
No. All conversion happens locally in your browser. No JSON data is sent to any server.