Mastodon

Mastodon is a decentralized, Open Source social network prioritizing user control and community-driven moderation.

Matomo

Matomo is an Open Source web analytics platform offering 100% data ownership and control while prioritizing user privacy.

Matterbridge

Matterbridge is an Open Source chat bridge that seamlessly connects various communication platforms.

Mautic

Mautic is a powerful, Open Source marketing automation platform enabling businesses to manage and optimize their marketing campaigns.

mave

Mave is a European, privacy-focused video platform offering seamless embedding, customization, and accessibility.

Mayan EDMS

Mayan EDMS is a highly scalable and secure Open Source document management system ideal for organizations of all sizes.

mCaptcha

mCaptcha is a privacy-focused, fully automated CAPTCHA system using proof-of-work to defend against attacks.

MEM courrier is an Open Source, AI-powered electronic document management system for efficient and secure handling of physical and electronic correspondence.

MeshCentral

MeshCentral is an Open Source, self-hosted web application for remote device management, supporting multiple platforms and offering extensive features.

Metabase

Metabase is a user-friendly business intelligence platform that empowers everyone to explore and analyze data.

metal-stack is an open-source Metal as a Service platform that turns on-premises hardware into elastic cloud infrastructure with bare-metal performance and Kubernetes integration.

metalstack.cloud is a managed Kubernetes platform on bare-metal servers, hosted in Germany, offering secure, high-performance cloud services with GDPR compliance and physical tenant separation.

Metronome IM is a lightweight, extensible XMPP server with advanced microblogging features.

Migadu

Migadu is a secure, standards-compliant email hosting service offering unlimited addresses and domains at a flat rate, with direct postmaster support and a focus on user privacy.

Minio

MinIO is a high-performance, S3-compatible object storage server that is easy to use and deploy.

MISP is an Open Source threat intelligence platform that enables collaborative collection, analysis, and sharing of cybersecurity information.

Mixpost

Mixpost is a self-hosted, Open Source social media management platform offering unlimited scheduling, publishing, and analytics without monthly subscription fees.

MoinMoin

MoinMoin is a Wiki in Python

Mongo Express is a user-friendly, web-based administration tool for MongoDB databases.

Monitorix is a free, Open Source, lightweight system monitoring tool that provides a comprehensive overview of system health and performance through easy-to-read reports and graphs.

Moodle

Moodle is a free and Open Source learning management system for creating engaging online learning experiences.

Mosquitto

Eclipse Mosquitto is a lightweight, open source MQTT broker ideal for IoT applications.

Mostlymatter

Mostlymatter is an Open Source, unlimited-user fork of Mattermost for secure team collaboration.

A lightweight, Open Source web application for real-time visualization and management of MQTT message flows.