Thunderbird

KommunikationMPL-2.0FreeWindowsmacOSLinuxAndroid

Full-featured email client with calendar, contacts, and chat integration across platforms

GitHub Repository Official Website

GitHub stars

Alternative to

Mailchimp

Kommunikation

Tuta

Encrypted email service with end-to-end encryption, calendar, and contacts for secure communication

GPL-3.0Freemium

Betterbird

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

MPL-2.0Free

Chatwoot

Customer engagement platform with live chat, email, and social media support channel management

MITFreemium

WeeChat

Fast and extensible IRC client with multi-protocol support and scripting capabilities

GPL-3.0Free

Flarum

Simple and beautiful forum software with a fast, extensible, and mobile-friendly design

MITFree

Listmonk

High-performance self-hosted newsletter and mailing list manager with analytics and templating

AGPL-3.0Free

Thunderbird

GitHub stars

Alternative to

Tuta

Betterbird

Chatwoot

WeeChat

Flarum

Listmonk

Bewertungen

Thunderbird

GitHub stars

Alternative to

Tuta

Betterbird

Chatwoot

WeeChat

Flarum

Listmonk

Bewertungen

Thunderbird

GitHub stars

Alternative to

Related Alternatives

Tuta

Betterbird

Chatwoot

WeeChat

Flarum

Listmonk

Bewertungen

Thunderbird

GitHub stars

Alternative to

Related Alternatives

Tuta

Betterbird

Chatwoot

WeeChat

Flarum

Listmonk

Bewertungen