Active Matrix Rooms

Active Programming Matrix Rooms

Find 2691 active programming Matrix rooms and spaces. Matrix room search list — sorted by real-time message velocity. Updated live. We only count messages to measure activity — message content is never read, stored, or indexed.

2691 active rooms · sorted by message count · updated live · content never stored

#1

Element X Android

Discussions about Element X Android | https://play.google.com/store/apps/details?id=io.element.android.x | https://github.com/element-hq/element-x-android | Nightly builds: https://appdistribution.fir

36 msg/hr 2,965 members matrix.org
#2

C Programming

Unofficial room for C related questions and discussion | Avoid off-topic, use #cprogramming-ot:matrix.org instead | Space: #cprogramming-space:matrix.org

35 msg/hr 1,010 members matrix.org
#3

Haiku · Development

A low-volume channel intended for Haiku development discussion. | Bugs: https://dev.haiku-os.org | SCM: https://git.haiku-os.org | Search source: https://grok.nikisoft.one/ | Paste: https://gist.githu

30 msg/hr 55 members matrix.org
#4

BLC Public Room

SCROLL DOWN/EXPAND/DROP DOWN TAB TO READ THE RULES. In order to find other BLC Rooms, please join the space Black Lotus Coalition Team. https://matrix.to/#/#blacklotuscoalitionteam:matrix.org If y

21 msg/hr 2,026 members matrix.org
#5

#general-bridged

This is the general chat room of The Cozy Nook, a Matrix space made for people who are interested in technology and technology-related things, such as: Linux distributions, software development and ne

16 msg/hr 307 members vietexa.com
#7

Haiku · Main

Open-source operating system that specifically targets personal computing. | https://haiku-os.org | Nightlies: https://download.haiku-os.org | Bugtracker: https://dev.haiku-os.org | SCM: https://git.h

9.4 msg/hr 635 members matrix.org
#8

орехус-клаб

Масонская лоджия. Тайный Орден общего назначения. Здесь общаются на любые темы кроме острых политических. Делятся своими мыслями, планами, творческими позывами, бесполезными ссылками и опытом использ

6.7 msg/hr 739 members unredacted.org
#9

Embassy

Welcome to the Embassy matrix channel! -- Next-gen async embedded Rust framework -- https://embassy.dev -- https://github.com/embassy-rs/embassy

3.3 msg/hr 2,518 members matrix.org
#10

general

Chatter related to Spacebar and its development. nyaa Channel ID: 806142446529806367 Guild ID: 806142446094385153

3.3 msg/hr 510 members rory.gay
#11

Ergo Development

High-level dev discussions and updates.

2.5 msg/hr 419 members matrix.ergonaut.space
#12

Matrix HQ

The Official Matrix HQ - chat about Matrix here! | https://matrix.org | https://spec.matrix.org | To support Matrix.org development: https://donorbox.org/keep-matrix-exciting | Code of Conduct: https:

1.8 msg/hr 7,302 members matrix.org
#13

MusicBrainz community

MusicBrainz Community | See #bookbrainz for BookBrainz and #metabrainz for development and other *Brainz’s | Channel is logged; see https://musicbrainz.org/doc/Communication/ChatBrainz for details

1.7 msg/hr 2,825 members chatbrainz.org
#14

AWCY?- The Waiting Room

*Public* Join themcnv mmcommunityx. +awcywaitingroom:matrix.org. Welcome to the artists waiting rooms. DON'T change your default messages setting, nobody will be able to read them if you do change th

1.3 msg/hr 5,608 members matrix.org
#15

Smithay

Dev & support room for the smithay crate: a toolbox for making Wayland compositor in Rust. -- https://smithay.github.io/

1.2 msg/hr 515 members safaradeg.net
#16

Ukraine News

Ukraine will win! --- Main charity - https://u24.gov.ua/ --- https://play.google.com/store/apps/details?id=ua.gov.u24app --- alternative charity list https://www.reddit.com/r/ukraine/wiki/ch

1.00 msg/hr 24 members matrix.org
#17

postmarketOS mainline

Mainlining Linux phones/tablets | Note: Only for mainline kernel development! Discuss downstream/vendor kernel device porting in #porting:postmarketos.org

1.00 msg/hr 898 members postmarketos.org
#18

The Federation

https://the-federation.info // Code: https://codeberg.org/thefederationinfo/the-federation.info - Django or VueJS developer? Please contribute!

1.00 msg/hr 47 members feneas.org
#19

postmarketOS porting

For device porting | Slow channel, just ask your question and wait for an answer (can take a while) :) | Get started here: https://wiki.postmarketos.org/wiki/Porting_to_a_new_device | Don't paste logs

0.84 msg/hr 1,213 members postmarketos.org
#20

Haskell

An advanced, purely functional programming language, haskell.org • spam ? call @mods • more rooms: #haskell-irc:matrix.org, #haskell-space:matrix.org • see also: joyful.com/Haskell+map, https://fossto

0.83 msg/hr 715 members matrix.org
#21

C++ Programming

Unofficial room for the cpp (c++) programming language. {.cpp, .cxx, .hpp, .hxx, .c, .h} advertisement or recruiting = immediate ban

0.53 msg/hr 428 members matrix.org
#22

components releases

RSS subscription to components we use and provide as part of etke.cc & #mash-playbook:devture.com & #matrix-docker-ansible-deploy:devture.com Support us: https://github.com/sponsors/etkecc

0.50 msg/hr 55 members etke.cc
#24

Nim programming language

Official Matrix channel for the Nim programming language. This channel is bridged with our main Discord and Gitter channels.

0.44 msg/hr 10,515 members matrix.org
#25

#openstack-nova

This channel is for Nova development | Development-planning: https://etherpad.opendev.org/p/nova-2026.2-status | PTG doc: https://etherpad.opendev.org/p/nova-2026.2-ptg | This channel is logged at ht

0.41 msg/hr 261 members matrix.org
#26

OpenDev

#opendev OpenDev is a space for collaborative Open Source software development | https://opendev.org/

0.25 msg/hr 122 members opendev.org
#27

devlug-bot

IT Security Feeds: https://forum.opnsense.org/index.php?PHPSESSID=02aghbesc7c4embfb9d2qrr9hq&action=.xml;type=rss;board=11.0 https://matrix.org/blog/feed https://my.proxmox.com/en/announcements/rss ht

0.19 msg/hr 62 members tchncs.de
#28

Continuwuity Notifications

Read only room containing all notifications from the continuwuity forge. You can see and join in the discussion in https://matrix.to/#/#dev:continuwuity.org.

0.18 msg/hr 206 members continuwuity.org
#29

Plasma Development

Place for developers to work on KDE Plasma. Users should discuss topics in #kde:kde.org or https://discuss.kde.org Bugs should be reported using https://bugs.kde.org

0.17 msg/hr 2,746 members calitabby.net
#30

Off-topic messaging for FOSS-minded geeks

matrix.org/legal/code-of-conduct Friendly lounge for random chit-chat of like-minded technical people. Shared background of most members here: #Delta.Chat:matrix.org #efy_webdev:matrix.org #friendi.ca

0.10 msg/hr 439 members grin.hu
#31

COSS

COSS - Commercial Open Source Software. We discuss and build interesting projects, share knowledge and support other developers, managers and marketers. We are also looking for helpers for our own.

0.10 msg/hr 91 members sibnsk.net
#32

microG

microG Project: https://microg.org/ (site currently down) and https://github.com/microg/ | Bridged with #microg on Libera.chat | Guide, tips: https://www.reddit.com/r/MicroG/wiki/index | We might be a

0.10 msg/hr 129 members matrix.org
#33

MetaCall

METACALL is a library that allows calling functions, methods or procedures between programming languages. With METACALL you can transparently execute code from / to any programming language, for examp

0.09 msg/hr 1,841 members matrix.org
#34

GrapheneOS Development

Official GrapheneOS development chat room. Join the #community:grapheneos.org space for a list of all the rooms. Formerly known as CopperheadOS.

0.09 msg/hr 2,291 members grapheneos.org
#35

CentOS Cloud SIG

https://etherpad.opendev.org/p/centos-cloud-sig

0.09 msg/hr 68 members fedoraproject.org
#36

Fractal

Matrix messaging app | Available from https://flathub.org/apps/org.gnome.Fractal | Development at https://gitlab.gnome.org/World/fractal

0.09 msg/hr 2,163 members matrix.org
#38

Monero

[XMR] Be excellent to each other and welcoming to newcomers || getmonero.org || Dev: #monero-dev:monero.social || Price chat: #monero-markets:monero.social || Off topic: #monero-offtopic:monero.social

0.09 msg/hr 4,291 members matrixrooms.info
#39

XenDevel

Welcome to the XenDevel channel. If you have submitted patches to the developer mailing lists or are otherwise active on them, this channel is for you. It's also the best place to ask development-re

0.09 msg/hr 340 members matrix.org
#40

pulp-dev

PulpCon 2025! https://hackmd.io/@pulp/pulpcon_2025_schedule

0.09 msg/hr 98 members matrix.org
#41

Ubuntu MATE Development

Development room for Ubuntu MATE | Please follow the CoC: https://ubuntu.com/community/ethos/code-of-conduct

0.08 msg/hr 58 members ubuntu.com
#42

Charm Tech

Public Charm Tech team channel: development of the Ops library, Pebble, charm libraries, Jubilant, and so on. For questions about using Ops or Pebble in charms, see https://matrix.to/#/#charmhub-charm

0.08 msg/hr 75 members ubuntu.com
#43

Cabal and Hackage

Cabal and Hackage development questions and needs | Contribute on https://github.com/haskell/cabal and https://github.com/haskell/hackage-server/ | List of weird Cabal CI failures: https://docs.google

0.08 msg/hr 173 members matrix.org
#44

Thunderbird Add-on Developers

Check out https://developer.thunderbird.net for information on how to build and update your add-on.

0.08 msg/hr 382 members mozilla.org
#45

Data Structures and Algorithms

Data Structures and Algorithms - Leetcode, Hacker Rank. Euler Project, CodeWars, Competitive Programming, DSA

0.08 msg/hr 105 members matrix.org
#46

Dev

0.08 msg/hr 15 members atproto.fr
#47

calibre

calibre E-book management (http://calibre-ebook.com). Inofficial user-to-user support channel, no devs here. Don't ask to ask. Just ask and stick around as we might not always be around. PDF conversio

0.08 msg/hr 1,237 members matrix.org
#48

deepin 社区开发者摸鱼小分队

此群为开发者群,与 Telegram 上的 https://t.me/deepin_community 互通 Matrix 上的 deepin 频道:https://matrix.to/#/#deepin-space:matrix.org 开发者邮件列表:https://www.freelists.org/archive/deepin-devel/ 其它讨论途径:https://wiki.dee

0.08 msg/hr 377 members deepin.org
#49

FluffyChat Community Support Channel

Official room of the cutest Matrix client. https://fluffy.chat ### Rules: **English only!** No off topic, no "hello", "What's the topic here" spam. Please report issues here: https://github.com/kri

0.08 msg/hr 935 members matrix.org
#50

#general

General topics related to https://freegamedev.net Available on IRC, XMPP and Matrix.

0.08 msg/hr 281 members matrix.f-hub.org
#51

openSUSE GNOME

#space:opensuse.org | Bridged with https://discord.gg/opensuse and ircs://irc.libera.chat:6697/#opensuse-gnome | Gnome development on openSUSE https://www.gnome.org

0.08 msg/hr 1,898 members opensuse.org
#52

postmarketOS devel

postmarketOS, pmbootstrap and tools development | 🏳️‍🌈🏳️‍⚧️ all are welcome

0.08 msg/hr 544 members postmarketos.org
#54

#cool-dev

GH: https://github.com/CollaboraOnline/online | https://meet.jit.si/COOLWeeklyMeeting | Docs: https://collaboraonline.github.io/ | https://sdk.collaboraonline.com/ | Forum/mailing list: https://forum.

0.08 msg/hr 465 members libera.chat
#55

Music Blocks Development (Sugar Labs)

Development for Music Blocks visual programming language. Are you new to Music Blocks development? Read this: https://github.com/sugarlabs/musicblocks/discussions/3834 Music Blocks is a Sugar Labs

0.08 msg/hr 713 members matrix.org
#56

Hackerspace Brussels (HSBXL)

See you Tuesday or Friday at: - https://hsbxl.be/techtuesday - https://hsbxl.be/events/open-coding-day/ for any urgent matter (like "I'm at the door"), we have phones. +32 (0)2 880 40 04 (public pho

0.08 msg/hr 381 members matrix.org
#58

OSM Developer

Discuss anything with using OSM data to develop 3d party applications. Scripting, coding, manipulating OSM data for consumer driven products. Part of the #osmworld:matrix.org space. Bridged with the

0.08 msg/hr 3,237 members privacytools.io
#59

Linux

🇺🇦🇪🇺 | Talk about the GNU/HURD/Linux operating system and related stuff | be sensible, have nice discussions :) | oh, and https://dontasktoask.com | try not to become a help vampire, we have banhammer

0.08 msg/hr 1,523 members envs.net
#60

freenet

Community & Dev room | Freenet | Declare your digital independence | https://freenet.org/ | Keep it friendly, be welcoming to newbies, and stay on-topic

0.08 msg/hr 1,213 members matrix.org
#61

SpiderMonkey

JS engine developer chat. Questions welcome! || FF112 soft freeze 2023-03-09, train departs 2023-03-13 || More info @ https://spidermonkey.dev/

0.08 msg/hr 721 members mozilla.org
#62

Raspiblitz German

Hilfe von der Community Rund um das Thema Raspiblitz

0.08 msg/hr 483 members matrix.yourdevice.ch
#64

mautrix-go

Discussion about mautrix-go and developing things using it | https://github.com/mautrix/go

0.08 msg/hr 127 members matrixrooms.info
#65

Devio.us

Devious: geeks trying to quell their buyers remorse by convincing each other to also buy $thing. Thanks Jeremy! | Patch your shiz people 🤖 | Stop licking rats people! YOURE NOT MY SUPERVISOR! | I wo

0.08 msg/hr 119 members pintobyte.com
#66

Ubuntu WSL

Ubuntu on WSL for users and developers - Please follow the CoC: https://ubuntu.com/community/ethos/code-of-conduct

0.08 msg/hr 25 members xentonix.net
#67

Lobby

This is the general room. The main topic are Programming and [Free] Software. No politic or unrelated stuff here.

0.08 msg/hr 16 members unredacted.org
#70

KDE Development

Release Schedules: http://is.gd/H9mskw | Dev wiki: http://community.kde.org/ | Git: http://invent.kde.org | Newcomers, please read and follow the "Get involved" guide before asking questions here: htt

0.08 msg/hr 2,759 members kde.org
#71

[email protected]

Jabber/XMPP Development | RFCs and Extensions: https://xmpp.org/ | Logs: http://logs.xmpp.org/jdev/ | Protocol and XSF discussions: [email protected] | Library list: https://xmpp.org/software/libraries

0.08 msg/hr 1,059 members matrix.org
#72

Continuwuity Development

⚠️ IMAGES ARE BLOCKED⚠️ | Meta room for discussing "continuwuity development and contributions" | Repo: https://forgejo.ellis.link/continuwuation/continuwuity | See guidelines: https://continuwuity.or

0.08 msg/hr 243 members continuwuity.org
#73

Pages Server

Gitea/Forgejo Pages server (admins & devs) https://codeberg.org/Codeberg/pages-server the room is public and will be archived via https://archive.matrix.org/

0.07 msg/hr 384 members obermui.de
#74

Tuwunel💕 Fanclub - Support & Chat

This is the support and chat room about the server, for admins and developers. This is not a **general chat** room! The [tuwunel CoC](https://github.com/matrix-construct/tuwunel/blob/main/CODE_OF_CON

0.07 msg/hr 2,120 members matrix.org
#75

F-Droid - Free and Open Source Android App Repository

F-Droid, the free and open source app repository (official room) | https://f-droid.org | https://forum.f-droid.org | https://floss.social/@fdroidorg | #fdroid-space:f-droid.org | For development discu

0.07 msg/hr 1,436 members 4d2.org
#76

BQN

The BQN array programming language, an APL descendant

0.06 msg/hr 1,177 members matrix.org
#77

#xfce-commits

Xfce commits and merges | Support in #xfce | Development in #xfce-dev | https://gitlab.xfce.org

0.06 msg/hr 63 members matrix.org
#79

KWin

Development and user support channel for KWin: http://community.kde.org/KWin Please use #kde:kde.org for general user questions; #kde-devel:kde.org for general KDE development topics, and #plasma-dev

0.06 msg/hr 407 members kde.org
#80

tech-general

Talk about Linux, programming, networking or any other tech-related activities. Matrix space invite: https://matrix.to/#/#the-cozy-nook:vietexa.com

0.06 msg/hr 112 members vietexa.com
#81

asahi-dev

0.06 msg/hr 459 members matrix.debian.social
#82

Monero Dev

Matrix .org users can not receive PM's / see messages from several home servers (including Monero .social). Please consider using a non-Matrix .org account Official repo: https://github.com/monero-pro

0.06 msg/hr 1,547 members monero.social
#83

Jabber/XMPP Development

Jabber/XMPP Development | RFCs and Extensions: https://xmpp.org/ | Logs: http://logs.xmpp.org/jdev/ | Protocol and XSF discussions: [email protected] | Library list: https://xmpp.org/software/libraries

0.06 msg/hr 1,321 members aria-net.org
#84

Index Error

Off-topic conversations for array programming forums

0.05 msg/hr 919 members matrix.org
#85

Synapse Admins

Help with setting up and running Synapse | Current release: 1.151.0 | For questions about developing on Matrix, please join #matrix-dev:matrix.org | File bugs at https://github.com/element-hq/synapse/

0.05 msg/hr 1,674 members infosec.exchange
#87

Kemono

The Kemono Party: Official Chat for Kemono! Intended for development discussion and tech discussion.

0 msg/hr 58,079 members matrixrooms.info
#88

Anonymity Privacy and Security

This is where we discuss ways to protect your online identity and maintain privacy. Share experiences, learn strategies, and explore latest developments in online security. Join us and let's work towa

0 msg/hr 25,593 members envs.net
#89

Hidden Knowledge

This is a sanctuary for those seeking to unravel the extraordinary. Dive deep into the abyss of hidden knowledge and engage in thought-provoking conversations, explore alternative perspectives, and ch

0 msg/hr 25,234 members envs.net
#90

Cypherpunk Cryptopia

Welcome to the Cypherpunk Cryptopia, where privacy, security, and freedom take center stage. Join us as we discuss cryptography, decentralization, and online anonymity, working towards reshaping the d

0 msg/hr 23,698 members tchncs.de