Top 6 Open-Source Alternatives to Green Messenger

Product categories

Chat Communication Cpaas Customer Engagement Group Chat & Notifications Group Messaging Instant Messaging Internet Calls Messaging Video Chat

Summary

The top open-source alternatives to Green Messenger are Telegram, Zulip, and Signal. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Telegram Landing Page
1

Telegram

Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Pricing:
- Open Source
#Communication #Messaging #Instant Messaging 129 social mentions
Zulip Landing Page
2

Zulip

Chat for distributed teams. Zulip combines the immediacy of real-time chat with an email threading model. With Zulip, you can catch up on important conversations while ignoring irrelevant ones.
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Messaging 50 social mentions
Signal Landing Page
3

Signal

Fast, simple & secure messaging. Privacy that fits in your pocket.
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Messaging 180 social mentions
Tox Landing Page
4

Tox

Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Instant Messaging 28 social mentions
OpenTok Landing Page
5

OpenTok

Build a custom video experience using our robust APIs, or add plug-and-play video to your website in minutes using Video Chat Embeds. Start Building for FreeTalk to SalesTalk to Sales .
Pricing:
- Open Source
#Communication #Messaging #Cpaas
Tinode Landing Page
6

Tinode

Tinode Instant Messaging
Pricing:
- Open Source
#Communication #Messaging #Group Chat & Notifications