Modern geometric sans-serif font

https://manropefont.com/

Old German blackletter handwriting (Suetterlin)

http://www.bryld.dk/hent-filer/

Multithreaded SQL database (client)

http://mariadb.org/

Multithreaded SQL database (server)

http://mariadb.org/

Material Design icon set from Google

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

Material Design Webfont

https://materialdesignicons.com/

Java project management tool

https://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/

Interpreter for the AWK Programming Language

https://invisible-island.net/mawk/

Converts mbox mailboxes to Maildir

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

Motherboard monitor for LM78/79, W8378x, AS99127F, VT82C686 and ADM9240

http://www.nt.phys.kyushu-u.ac.jp/shimizu/download/download.html

Tool for buffering data streams

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

Midnight Commander, a free Norton Commander clone

https://midnight-commander.org/

Lightweight Midnight Commander clone

http://mc.linuxinside.com/

Collects and decodes Machine Check Exception data

https://github.com/andikleen/mcelog/

Replacement for crypt(1)

https://mcrypt.sourceforge.net/

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

https://github.com/mdbtools/mdbtools/

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

Small, fast Emacs-like editor

https://github.com/ibara/mg

MgOpen greek fonts collection

http://ellak.gr/tag/fonts/

Easy-to-use library for strong hashes such as MD5 and SHA1

https://mhash.sourceforge.net/

MidnightBSD desktop environment

http://people.midnightbsd.org/~laffer1

MidnightBSD desktop environment

http://www.midnightbsd.org/

Lightweight web browser using WebKit browser engine

https://www.midori-browser.org/

Mod player which plays MTM, STM, XM, MOD, S3M, ULT, UNI and IT mods

https://mikmod.sourceforge.net/

Easy-to-use greylist milter for sendmail and postfix

http://hcpnet.free.fr/milter-greylist/

Construct and optionally send MIME messages from command line

http://www.argon.org/~roderick/

MIME Media Types list

https://packages.qa.debian.org/m/mime-support.html

Near-infinite-world block sandbox game

https://www.minetest.net/

The main game for the Minetest game engine

https://www.minetest.net/