Wechat for Bot. Powered by WebDriver / Node.js / Docker



Connecting ChatBots.

Wechaty is a Bot Framework for Wechat Personal Account which can help you create a bot in 6 lines of javascript by easy to use API, with cross-platform support include Linux, Windows, Darwin(OSX/Mac) and Docker.

Join the chat at https://gitter.im/zixia/wechaty node Repo Size Issue Stats Issue Stats
:octocat: https://github.com/chatie/wechaty
:beetle: https://github.com/chatie/wechaty/issues
:book: https://github.com/chatie/wechaty/wiki
:whale: https://hub.docker.com/r/zixia/wechaty

Voice of the Developer

“Wechaty is a great solution, I believe there would be much more users recognize it.” link
– @Gcaufy, Tencent

“The best wechat SDK I have seen in Github!” link
– @JasLin, BotWave CTO

“Wechaty简单的接口…和Docker化的封装…绝对是一个不错的选择” link
– @shevyan, Ghost Cloud CEO

“Wechaty is great.” link
– @Samurais, SnapLingo Director of Engineering

“最好的微信开发库” link
– @Jarvis, Baidu Developer

“Wechaty让运营人员更多的时间思考如何进行活动策划、留存用户,商业变现” link
– @lijiarui, Orange Interactive CEO.

“太好用,好用的想哭” – @xinbenlv, Google Engineer, HaoShiYou.org Founder

“Wechaty library fantastic!” link - @ccaapton

“it’s quite cool!” link - @ak5

“Thanks for great SDK” link - @naishstar

“Your docker solution is awesome!” link - @ax4

The World’s Shortest ChatBot Code: 6 lines of JavaScript

const { Wechaty } = require('wechaty')

Wechaty.instance() // Singleton
.on('scan', (url, code) => console.log(`Scan QR Code to login: ${code}\n${url}`))
.on('login',       user => console.log(`User ${user} logined`))
.on('message',  message => console.log(`Message: ${message}`))

Notice: Wechaty requires Node.js version >= 6.9.0

This bot can log all message to console.

You can find more example from Wiki and Example Directory.

Getting Started

A Great Live Coding Tutorial

The above 10 minutes video tutorial is a good start point if you are new to Wechaty.


Let’s say, you have saved the above six lines javascript example to mybot.js.

We have two options to run wechaty:

  1. Docker
  2. NPM


Docker Pulls Docker Stars Docker Layers

The best practice to use Wechaty is run by docker, becasue it’s not only the most easy way to get start, but also protect you out of the troubles of dependencies problems.

$ docker run -ti --rm --volume="$(pwd)":/bot zixia/wechaty mybot.js

Wechaty Docker support to run TypeScript directly as well: just write in TypeScript and save to mybot.ts.

Get to know more about Wechaty Docker at Wiki:Docker.


NPM Version Downloads Greenkeeper badge

Get to know more about NPM at Wiki:NPM

Find a Good Server

The best practice for runing Wechaty Docker/NPM is using a VPS(Virtual Private Server) outside of China, which can save you hours of time because npm install and docker pull will run smoothly without any problem.

The following VPS providers is used by ourselves, they worked perfectly in production. You can use the following link to get one in minutes, and also do this can support Wechaty because you are refered by us.

Location Price Ram Payment Provider
Singapore $5 512MB Paypal DigitalOcean
Japan $5 1GB Paypal Linode
Korea $10 1GB Alipay, Paypal Netdedi

API Reference

Wechaty Event

  1. scan Emit when the bot needs to show you a QR Code for scanning
  2. login Emit when bot login full successful.
  3. logout Emit when bot detected log out.
  4. message Emit when there’s a new message.
  5. error Emit when there’s an error occurred.
  6. friend Emit when got a new friend request, or friendship is confirmed.
  7. room-join Emit when someone join the room
  8. room-leave Emit when someone leave the room
  9. room-topic Emit when someone change the room’s topic


  1. instance(setting: PuppetSetting): Promise<Wechaty> get the bot instance
  2. init(): Promise<void> Initialize the bot
  3. send(message: Message): Promise<void> send a message
  4. say(content: string): Promise<void> send message to filehelper, just for logging/reporting usage for your convenience


  1. from():Contact get the sender from a message
  2. from(contact:Contact):void set a sender to the message
  3. to():Contact get the destination of the message
  4. to(contact:Contact):void set the destination as contact for the message
  5. content():string get the content of the message
  6. content(content:string):string set the content for the message
  7. room():Room|null get the room from a message.
  8. room(room:Room):void set the room for a message.
  9. type():MsgType get the type of a Message.
  10. say(content:string):Promise reply a message to the sender.
  11. ready():Promise confirm get all the data needed, will be resolved when all message data is ready.
  12. self():boolean check if a message is sent by self


  1. name():string get name from a contact
  2. remark():string get remark name from a contact
  3. remark(remark:string):Promise set remark name to a contact
  4. weixin():string get weixin id from a contact
  5. star():boolean true for star friend, false for no star friend
  6. ready():Promise confirm get all the contact data needed, will be resolved when all data is ready
  7. say(content:string):Promise say content to a contact


  1. say(content:string,replyTo:Contact|ContactArray):Promise say content inside Room.
  2. ready():Promise confirm get all the data needed, will be resolved when all data is ready
  3. refresh():Promise reload data for Room

Room Event

  1. join Emit when someone join the room
  2. leave Emit when someone leave the room
  3. topic Emit when someone change the room topic


  1. hello:string get content from friendrequest
  2. accept():Promise accept the friendrequest
  3. send(contact:Contact,hello:string):Promise send a new friend request


Linux/Mac Build Status Windows Build status Docker CircleCI Coverage Status Known Vulnerabilities

Wechaty use AVA for unit testing

To test Wechaty, run:

npm test

Get to know more about test from Wiki:Test

Release Notes

Powered By Wechaty

Powered by Wechaty

Wechaty Badge

Get embed html/markdown code from Wiki:PoweredByWechaty

Projects Use Wechaty

  1. chatie.io ChatBot Portal Manager for Wechaty

Know more about Projects Use Wechaty at Wiki:PoweredByWechaty


Howto contribute

Contributions in any form are highly encouraged and welcome! Be it new or improved presets, optimized streaming code or just some cleanup. So start forking!

Code Contributions

If you want to add new features or change the API, please submit an issue first to make sure no one else is already working on the same thing and discuss the implementation and API details with maintainers and users by creating an issue. When everything is settled down, you can submit a pull request.

When fixing bugs, you can directly submit a pull request.

Make sure to add tests for your features and bugfixes and update the documentation (see below) before submitting your code!

Documentation Contributions

You can directly submit pull requests for documentation changes.

Main Contributors

Join Wechaty Developers’ Community

Wechaty is used in many ChatBot projects by hundreds of developers. If you want to talk with other developers, just scan the following QR Code in WeChat with secret code wechaty, you can join our Wechaty Developers’ Home at once.

Wechaty Developers’ Home

Scan now, because other Wechaty developers want to talk with you too! (secret code: wechaty)

See Also



In order to sync the doc with the lastest code for best, Wechaty use jsdoc to descript API, and use jsdoc-to-markdown to generate markdown format document to docs directory.

My Story

My daily life/work depends on too much chat on wechat. * I almost have 14,000 wechat friends in May 2014, before wechat restricts a total number of friends to 5,000. * I almost have 400 wechat rooms that most of them have more than 400 members.

Can you image that? I’m dying…

So a tireless bot working for me 24x7 on wechat, monitoring/filtering the most important message is badly needed. For example highlights discussion which contains the KEYWORDS which I want to follow up(especially in a noisy room). ;-)

At last, It’s built for my personal study purpose of Automatically Testing.


Zhuohuan LI [email protected] (http://linkedin.com/in/zixia)

profile for zixia at Stack Overflow, Q&A for professional and enthusiast programmers

Copyright & License

  • Code & Docs 2016-2017© zixia
  • Code released under the ISC license
  • Docs released under Creative Commons

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