The JavaScript Chat Widget
The easiest way to add a livechat to your JavaScript app. Framework-agnostic with zero dependencies. Works with vanilla JS, jQuery, or any library. Simple API for programmatic control.
👌 Easy to use
💸 Affordable for everyone
🇪🇺 Hosted in EU
The #1 livechat for JavaScript
Why JavaScript developers love Heyo
Framework agnostic
Works with vanilla JavaScript, jQuery, or any JavaScript framework. No dependencies required.
Simple API
Easy-to-use JavaScript SDK for programmatic control. Show, hide, or trigger the chat widget from your code.
Lightweight
Tiny footprint that won't bloat your JavaScript bundle. Loads asynchronously for optimal performance.
Modern and legacy support
Works with modern ES6+ code and older legacy JavaScript applications.
Livechat Features
Everything you need for great customer support
Reactions & Replies
Have real conversations with threaded replies and emoji reactions ❤️👌 Just like messaging apps your users already love
Proactive Messaging
Message any visitor on your website. Set up alerts to reach out during critical moments like onboarding or checkout
Video Profile
Introduce yourself with a personal video and bio. Show your customers there's a real person behind the chat
Bookmark messages
Afraid of losing a precious feedback or testimonial? Bookmark it, tag it, and keep it organized for when you need it
Custom style & behavior
Change style, colors and more! Don't want to show the widget everywhere? Use the SDK to fully customize your widget's behavior
Slack & Telegram Integration
Never miss a message. Get notifications and respond to customers directly from Slack or Telegram
Multi-language support
Serving international customers? Chat widgets are available in multiple languages to fit your audience
Quick Replies with shortcuts
Got lots of recuring support questions? Save time by creating pre-made replies and use commands to send them instantly.
Team Collaboration
Add team members, set your status, and collaborate seamlessly. Perfect for small teams that want to provide great support together
Use Cases
How developers use Heyo with JavaScript
Single-page applications
Add chat support to vanilla JavaScript SPAs without adding framework dependencies.
Interactive web tools
Provide support for users of your JavaScript-based web tools and calculators.
Legacy application support
Add modern live chat to older JavaScript applications without major refactoring.
Pricing
The most affordable livechat for JavaScript
Monthly
YearlySave 45%
Hobby
Free
For hobby projects
- Unlimited messages
- No message history limit
- Up to 1GB of data stored
Pro
$59
/year
$97
For solo founders and small teams
- Unlimited Projects
- Email offline users
- No Heyo branding
- Visitor Outreach
- Multiple users
- Unlimited data stored
- Integrations
FAQ
Heyo for JavaScript F.A.Q
Start using Heyo on JavaScript today
Join hundreds of JavaScript users providing exceptional customer support