Build Twitch Messaging Interface integrations in JavaScript with the tmi.js library.
Open source
24 alternativesComfyJS
ComfyJS provides a JavaScript library that connects Node.js and browser apps with Twitch chat.
About ComfyJS
ComfyJS is an open-source JavaScript library that connects Node.js and browser applications to Twitch chat. Developers use it to respond to chat commands, read chat messages, and send messages to a channel. The README describes setup as a few lines of code, and it credits tmi.js as the underlying Twitch chat library.
Reading chat and responding to commands work with a channel name alone. Sending messages requires a Twitch chat OAuth token, which the README suggests storing in a local .env file. Channel point reward redemptions need additional Twitch OAuth permissions, and the customRewardId field only works with custom rewards that require text.
Key features
- Responds to Twitch chat !commands through an onCommand handler
- Reads chat messages through an onChat handler
- Sends chat messages with ComfyJS.Say() using an OAuth token
- Reports user flags including broadcaster, mod, founder, subscriber, and vip
- Provides time since last command for cooldowns and spam filtering
- Joins a single channel or multiple channels through Init()
Best for: JavaScript developers who want to build Twitch chat bots or chat-driven features for Node.js or browser apps.
Good for
- Setup is described as a few lines of code
- Works in both Node.js and browser environments
- Open source under a published license
Watch out for
- Sending chat messages requires a Twitch chat OAuth token
- Channel point reward redemptions require extra Twitch OAuth permissions
ComfyJS at a glance
- Category
- Social & Communities › Twitch Tools
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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ComfyJS FAQ
How can a bot send messages to chat?
The library provides ComfyJS.Say(message), but connecting with it requires a Twitch chat OAuth password. The README links to twitchapps.com/tmi for generating one and suggests storing it in a .env file.
Can one instance join more than one channel?
Yes. Passing an array of channel names as the third argument to Init() joins multiple channels.
How can a developer limit how often a command is used?
The extra parameter for command handlers includes sinceLastCommand, which gives the time in milliseconds since the last use of the command by any user or by a specific user. The README notes it can be used for global cooldowns or spam filters.
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