Window manager for the adult in you

https://mate-desktop.org/

Multithreaded SQL database (client)

http://mariadb.org/

Multithreaded SQL database (server)

http://mariadb.org/

Collection of backgrounds for MATE

https://mate-desktop.org/

Additional UI API for MATE

https://mate-desktop.org/

Collection of icons for the MATE desktop

https://mate-desktop.org/

Implementation of the FreeDesktop Desktop Menu Spec

https://mate-desktop.org/

Send small notifications to your desktop

https://mate-desktop.org/

Panel component for the MATE Desktop

https://mate-desktop.org/

MATE frontend to the PolicyKit framework

https://mate-desktop.org/

Session component for the MATE desktop

https://mate-desktop.org/

MATE settings daemon

https://mate-desktop.org/

Collection of themes and icons for MATE

https://mate-desktop.org/

MATE users guide

Material Design icon set from Google

https://jossef.github.io/material-design-icons-iconfont

Material Design Webfont

https://materialdesignicons.com/

Cross-browser JavaScript display engine for mathematics

https://www.mathjax.org/

Open source Slack-alternative in Golang and React

https://mattermost.org/

Webapp of Mattermost server

https://mattermost.org/

Java project management tool

http://maven.apache.org/

Allows Maven's artifact handling to be used from within an Ant build

http://maven.apache.org/ant-tasks/index.html

Wrapper script for the various installations of Maven

Java project management tool, 3.x branch

http://maven.apache.org/

Java project management tool, 3.3.x branch

http://maven.apache.org/

Implementation of new/posix awk

http://invisible-island.net/mawk

Converts mbox mailboxes to Maildir

http://batleth.sapienti-sat.org/projects/mb2md/

Tool for buffering data streams

http://www.maier-komor.de/mbuffer.html

Midnight Commander, a free Norton Commander Clone

http://www.midnight-commander.org/

Lightweight Midnight Commander clone

http://mc.linuxinside.com/

Collects and decodes Machine Check Exception data

http://mcelog.org/

Replacement for crypt(1)

http://mcrypt.sourceforge.net/

Utilities and libraries to export data from MS Access databases (.mdb)

http://mdbtools.sourceforge.net/

Alcohol 120% to ISO converter

https://BSDforge.com/projects/sysutils/mdf2iso/

Advertise a service via Rendezvous

https://github.com/Pro/mdnsd/

Open Source implementation of the Lotus Sametime protocol

http://meanwhile.sourceforge.net/

Wiki engine used by Wikipedia

http://www.mediawiki.org/

GNOME visual diff and merge tool

http://meldmerge.org/

High-performance distributed memory object cache system

https://memcached.org/

Stand alone memory test for x86 architecture computers

http://www.memtest86.com/

Menu generator for X Window Managers and desktop environments

http://menumaker.sourceforge.net/

Fast, lightweight source control management system

https://www.mercurial-scm.org/

OpenGL demos distributed with Mesa

https://www.mesa3d.org/

OpenGL hardware acceleration drivers for DRI2+

https://www.mesa3d.org/

OpenGL libraries that support GLX and EGL clients

https://www.mesa3d.org/

Customized version of the Apple Menlo font

https://github.com/andreberg/Meslo-Font

High performance build system

https://mesonbuild.com/

Window manager for the adult in you

Metalink generation tool

http://metalinks.sourceforge.net/

Implementation of MIME, the Multipurpose Internet Mail Extensions

Package for unstructured graph partitioning

http://glaros.dtc.umn.edu/gkhome/metis/metis/overview