OpenWA Review: Self-Hosted WhatsApp API Gateway

A side door into WhatsApp

If your customers live on WhatsApp, you've probably wondered whether your other tools could talk to it too. Could a new booking send a confirmation? Could a question land in your team's shared inbox?

OpenWA is a free, open-source project that makes this possible. You run it on your own server, link a WhatsApp number, and your software can send and receive messages through it. It comes with a simple web dashboard, handles several numbers at once, and has ready-made connections for n8n, Chatwoot and Typebot. Its docs present it as a free alternative to paid tools that do the same job. Plenty of people seem to agree: it has about 15.4k stars on GitHub.

The part to read twice

The README is refreshingly honest. OpenWA is not official. It doesn't use Meta's own WhatsApp Cloud API. It works by imitating the regular WhatsApp app, so linking a number carries real risk. If that number is your main business line, think hard before connecting it.

Words worth knowing

• API: a door that lets one piece of software ask another to do something, like "send this message."
• Webhook: a tap on the shoulder. When a message arrives, your other tools get notified right away.
• Self-hosted: the software runs on a server you control, not on someone else's platform.
• Multi-session: several WhatsApp numbers managed from one place.

Something to sit with

This is a lovely sandbox for testing ideas, like a second number for experiments, an internal bot, or a prototype for your team. For anything your business truly depends on, ask your developer to compare it with the official route first.

https://github.com/rmyndharis/OpenWA