Listmonk

KommunikationAGPL-3.0FreeSelf-HostedWeb

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

GitHub Repository Official Website

GitHub stars

Alternative to

Mailchimp

Kommunikation

Mattermost

Secure team messaging platform with channels, file sharing, and workflow automation for enterprises

otherFreemium

Briar

Decentralized messaging app designed for activists and journalists with offline peer-to-peer support

GPL-3.0Free

Mailtrain

Self-hosted newsletter application with automation, segmentation, and campaign tracking features

GPL-3.0Free

Signal

Private messenger with end-to-end encryption for secure text, voice, and video communication

AGPL-3.0Free

Revolt

User-first chat platform built with modern web technologies as an alternative to Discord

AGPL-3.0Free

Thunderbird

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

MPL-2.0Free

Listmonk

GitHub stars

Alternative to

Mattermost

Briar

Mailtrain

Signal

Revolt

Thunderbird

Recensioner

Listmonk

GitHub stars

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Mattermost

Briar

Mailtrain

Signal

Revolt

Thunderbird

Recensioner

Listmonk

GitHub stars

Alternative to

Related Alternatives

Mattermost

Briar

Mailtrain

Signal

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Thunderbird

Recensioner

Listmonk

GitHub stars

Alternative to

Related Alternatives

Mattermost

Briar

Mailtrain

Signal

Revolt

Thunderbird

Recensioner