100% Free & Open Source

Chat links on your site,
in one script tag

Add a floating widget that connects visitors to your WhatsApp, Slack, Telegram, LinkedIn, and more. No backend, no accounts, no nonsense.

index.html
<script
  src="https://unpkg.com/kleenchat/widget.js"
  data-whatsapp="https://wa.me/1234567890"
  data-slack="https://join.slack.com/..."
  data-linkedin="https://linkedin.com/in/you"
  defer>
</script>
Build your widget Read the docs

Why KleenChat?

ðŸŠķ

Lightweight

~18KB gzipped. No dependencies. Loads fast, looks great.

🔧

Zero config

One script tag with data attributes. Channels auto-detected. Done.

ðŸŽĻ

Customizable

Change headings, colors, avatars, add a CTA. Or just use defaults.

🔓

Open source

MIT licensed. Self-host, fork, contribute. No vendor lock-in.

Supported channels

WhatsAppSlackLinkedInTelegramEmailMessengerXDiscordCalendly