Tools & Playgrounds

Experiment with TOON format interactively using these community-built tools for token comparison, format conversion, and validation.

Playgrounds

Experiment with TOON format interactively using these community-built tools for token comparison, format conversion, and validation:

CLI Tool

The official TOON CLI provides command-line conversion, token statistics, and all encoding/decoding features. See the CLI reference for full documentation.

npx @toon-format/cli input.json --stats -o output.toon

Editor Support

VS Code

TOON Language Support - Syntax highlighting, validation, conversion, and token analysis.

Install from the VS Code Marketplace or via command line:

code --install-extension vishalraut.vscode-toon

Tree-sitter Grammar

tree-sitter-toon - Grammar for Tree-sitter-compatible editors (Neovim, Helix, Emacs, Zed).

Neovim

toon.nvim - Lua-based plugin for Neovim.

Other Editors

Use YAML syntax highlighting as a close approximation. Most editors allow associating .toon files with YAML language mode.

Web APIs

If you're building web applications that work with TOON, you can use the TypeScript library in the browser:

import { decode, encode } from '@toon-format/toon'

// Works in browsers, Node.js, Deno, and Bun
const toon = encode(data)
const data = decode(toon)

See the API Reference for details.

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