Wire

KomunikaceGPL-3.0FreemiumWebWindowsmacOSLinuxAndroidiOS

Secure collaboration platform with encrypted messaging, video calls, and file sharing for teams

GitHub Repository Official Website

GitHub stars

Alternative to

Slack

Komunikace

Microsoft Teams

Komunikace

Zammad

Web-based helpdesk and customer support system with email, chat, and social media integration

AGPL-3.0Freemium

Betterbird

Enhanced Thunderbird fork with improved UI, better search, and quality-of-life patches

MPL-2.0Free

Spacebar

Self-hostable Discord-compatible chat platform with federation and full API compatibility

AGPL-3.0Free

mailcow

Dockerized email server suite with webmail, antispam, antivirus, and administration interface

GPL-3.0Free

osTicket

Support ticket system that routes and manages customer inquiries from email, web, and phone

GPL-3.0Free

Gotify

Self-hosted push notification server with REST API for sending and receiving real-time messages

MITFree

Wire

GitHub stars

Alternative to

Zammad

Betterbird

Spacebar

mailcow

osTicket

Gotify

Recenze

Wire

GitHub stars

Alternative to

Zammad

Betterbird

Spacebar

mailcow

osTicket

Gotify

Recenze

Wire

GitHub stars

Alternative to

Related Alternatives

Zammad

Betterbird

Spacebar

mailcow

osTicket

Gotify

Recenze

Wire

GitHub stars

Alternative to

Related Alternatives

Zammad

Betterbird

Spacebar

mailcow

osTicket

Gotify

Recenze