JSON → TOML Converter

Convert JSON to TOML. Paste JSON or import a file; preview, copy, and download.

JSON
Paste JSON directly or import a .json or .txt file from this device.
TOML
TOML output updates as soon as the input contains valid JSON.
title = "TOML Example"

[owner]
name = "Tom Preston-Werner"

[database]
ports = [ 8001, 8001, 8002 ]
enabled = true

What this tool is for

Use this tool when you need to turn valid JSON into TOML that is easier to scan, share, or commit. Everything runs locally in the browser.

Where it helps

  • Converting API examples into TOML for docs or config files.
  • Rewriting copied JSON payloads into a format that is easier to diff by eye.
  • Preparing structured content for tools and workflows that expect TOML.

What to watch for

  • Input must be valid JSON in this tool.
  • The converter preserves data structure, but TOML presentation can still differ from hand-written style.
  • If you need to go the other direction, use the TOML to JSON converter instead.