Top 4 Open-Source Alternatives to Sim-IM

Sim-IM

SIM-IM or SIM Instant Messenger is a free Instant Messenger for various protocols.

Product categories

Chat Communication Group Chat & Notifications Instant Messaging Messaging Productivity

Summary

The top open-source alternatives to Sim-IM are Discord, WhatsApp Web, 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.

Discord Landing Page
1

Discord

Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more.
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Messaging 122 social mentions
WhatsApp Web Landing Page
2

WhatsApp Web

A WhatsApp client for web
Pricing:
- Open Source
#Communication #Messaging #Group Chat & Notifications 180 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
Franz Landing Page
4

Franz

Franz is your messaging app for WhatsApp, Facebook Messenger, Slack, Gmail, Telegram and many many more.
Pricing:
- Open Source
- Freemium
- €4.0 / Monthly
#Group Chat & Notifications #Messaging #Communication 28 social mentions