Active Matrix Rooms

Active Open Source Matrix Rooms

Find 660 active open source Matrix rooms and spaces, sorted by real-time message velocity. Stop joining dead rooms — updated live. We only count messages to measure activity — message content is never read, stored, or indexed.

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

#1

Mastodon

Glasgow toots from the Fediverse and Matrix users (https://opensource.glasgow.social/matrix/mastodon)

10 msg/hr 43 members glasgow.social
#2

Esica • Off-Topic

Every Shit i̶ "We" Care About The Matrix Replica of Esica, to discuss about Tech, Foss, Apps, Shows or anything Rules - No 18+ content , No abusive language. - No piracy here. Telegram Channel

9.1 msg/hr 5,079 members matrix.org
#3

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

1.5 msg/hr 372 members grin.hu
#4

AsteroidOS

AsteroidOS is a free and open source smartwatch platform | https://asteroidos.org | Ask anything related to AsteroidOS in this chat room | This channel is publicly logged at https://log.asteroidos.org

0.83 msg/hr 606 members matrix.org
#5

OpenDev

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

0.83 msg/hr 90 members opendev.org
#6

OSArch - General

Open Source in AEC - https://osarch.org | Talk about open source AEC and OpenBIM

0.83 msg/hr 594 members matrix.org
#7

CoMaps - EN

A Collective Cooperative Community fork of Organic Maps: https://www.CoMaps.app Not-for-profit and Open Source: https://codeberg.org/comaps https://floss.social/@CoMaps

0.67 msg/hr 1,211 members matrix.org
#8

FSCI (Free Software Community of India)

Code of Conduct: https://fsci.in/code-of-conduct | This room has public logs | Off-topic room: #fsci-offtopic:poddery.com | More -> fsci.in

0.51 msg/hr 1,673 members vern.cc
#9

#fosscad

#fosscad FOSSCAD: The Big Tent | Ask your question. Stay until your question is answered. It could be minutes. It could be hours. We work. We sleep. We don't live here. | On mobile? Disable auto-recon

0.36 msg/hr 172 members matrix.org
#10

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

0.34 msg/hr 419 members matrix.org
#11

IndiaFOSS

Discussions related to the IndiaFOSS conference organized by FOSS United. See additional information at https://fossunited.org/indiafoss Bridged to "IndiaFOSS 2024" topic on Telegram

0.33 msg/hr 54 members frei.chat
#12

Apertium

Apertium - Free software machine translation - http://wiki.apertium.org/ - https://github.com/apertium/ - [ðɪs] channel is multilingual, use UTF-8 (xchat: /charset UTF-8) - Pastebin: http://apertium.

0.17 msg/hr 87 members matrix.org
#13

#apertium

Apertium - Free software machine translation - https://wiki.apertium.org/ - https://github.com/apertium/ - [ðɪs] channel is multilingual, use UTF-8 (xchat: /charset UTF-8) - Pastebin: http://apertium.

0.17 msg/hr 75 members matrix.org
#15

Software I Just Found

A place to post about open source projects that you have stumbled upon.

0.09 msg/hr 56 members linux.usu.edu
#16

Free Software Foundation Europe (FSFE)

Free Software Foundation Europe is a charity that empowers users to control technology. We welcome relevant questions and contributions from everyone abiding by our Code of Conduct .

0.09 msg/hr 609 members fsfe.org
#17

OpenWrt 2026 (stable: 25.12.2)

in case of spam, ping mods (type modhelp). matrix.org/legal/code-of-conduct https://forum.openwrt.org/invites/mrfHSpWM2D | guides: openwrt.org/docs/guide-quick-start Unofficial community, wireless mes

0.09 msg/hr 6,793 members envs.net
#18

PCAPdroid

PCAPdroid foss community. Bridged with https://t.me/PCAPdroid

0.09 msg/hr 6,956 members matrix.org
#19

The Geek Lab

A place to discuss Linux and open source related technologies. Chat rules: https://docs.minddripmedia.com/chat-room-rules/

0.08 msg/hr 1,898 members linuxdelta.com
#20

LR — General

Welcome to official chat room for Linux Renaissance YouTube channel. Strictly technical talk goes to #Linux room and politics goes to #offtopic room. Visit the rooms list here: #space:fosshq.org

0.08 msg/hr 113 members fosshq.org
#21

pubglug

Welcome the public GNU/Linux group, or pubglug! This channel is dedicated to discussing Free Software and its surrounding culture. For the best experience possible, please turn on the labs for Threads

0.08 msg/hr 91 members gnulinux.club
#22

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

0.08 msg/hr 1,005 members 4d2.org
#23

The Artifical Dominion

A place to discuss Open Source AI Developments and projects

0.08 msg/hr 31 members linuxdelta.com
#24

farmOS

farmOS (https://farmOS.org) is a free and open source, web-based farm management system. User guide: http://farmos.org/guide/ - Forum: https://farmOS.discourse.group - Updates: https://fosstodon.org/@

0.08 msg/hr 270 members matrix.org
#25

Home Assistant

Open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. https://ww

0.05 msg/hr 525 members tchncs.de
#26

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.

0.05 msg/hr 55 members sibnsk.net
#27

Hack Liberty Community

We are a group of cypherpunks, privacy advocates, engineers, and philosophers dedicated to the pursuit of truth, liberty, and knowledge for all. We believe technology is a tool for liberation, not ens

0 msg/hr 26,111 members envs.net
#28

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 23,706 members tchncs.de
#29

RSS - Hack Liberty News

Feed List: https://paste.hackliberty.org/?99738ed5ca137027#4gipqVGWpsjPKUVhUV28txtwEmksb9neUsztNK3LxA6a | Topics: agorism, agorist, agorist philosophy, alternative currencies, anarchism, anarcho-capit

0 msg/hr 22,555 members tchncs.de
#30

Developers Italia

Il punto di riferimento per il software open source della Pubblica Amministrazione Italiana https://developers.italia.it

0 msg/hr 12,781 members matrixrooms.info
#31

(Old) F-Droid - Free and Open Source Android App Repository

This room has been upgraded. Please join #fdroid:f-droid.org F-Droid, the free and open source app repository (official room) | https://f-droid.org | https://forum.f-droid.org | https://floss.social/@

0 msg/hr 9,418 members f-droid.org
#32

Aurora Store

Aurora Store is a privacy-centric FOSS client for Google Play Store. This is a support chat for Aurora Store. This room is currently bridged with Telegram at t.me/AuroraSupport • Source Code: https:/

0 msg/hr 8,956 members auroraoss.com
#33

fossasia/fossasia

Connect! github.com/fossasia/star-me | More fossasia.org

0 msg/hr 6,279 members gitter.im
#35

Telegram-FOSS

General talk about FOSS/linux/censorship/etc., we sometimes talk about Telegram ;-) || Bridged to Telegram: https://t.me/tfossofftop and IRC: #telegram-foss (freenode) || Source: https://github.com/Te

0 msg/hr 4,730 members matrix.org
#36

scikit-learn/scikit-learn

scikit-learn: machine learning in Python. Please feel free to ask specific questions about scikit-learn. Please try to keep the discussion focused on scikit-learn usage and immediately related open so

0 msg/hr 4,494 members gitter.im
#37

Neo Store

A modern FOSS F-Droid client. Neo Collective Space: https://matrix.to/#/#neo-collective:matrix.org

0 msg/hr 4,202 members matrix.org
#39

openSUSE Mastodon

#space:opensuse.org | Bridged to https://discord.gg/opensuse | Toots from openSUSE Mastodon at https://fosstodon.org/@openSUSE

0 msg/hr 3,342 members opensuse.org
#40

strongloop/loopback

LoopBack is an open source Node.js framework built on top of Express optimized for mobile, web, and other devices. Connect to multiple data sources, write business logic in Node.js, glue on top of you

0 msg/hr 3,205 members gitter.im
#41

RSS - Dark Web News

Stay up to date with the latest Dark Web news through our fast polling RSS feed, delivering real-time updates on illicit activities, emerging cyber threats, and technological advancements within the h

0 msg/hr 2,550 members tchncs.de
#42

KDE Community

An international team developing and distributing Open Source software.

0 msg/hr 2,458 members 4d2.org
#44

Neo Launcher

A modern FOSS Android launcher. Neo Collective Space: https://matrix.to/#/#neo-collective:matrix.org

0 msg/hr 1,925 members matrix.org
#45

DistroTube General

Official Matrix room for fans of the DistroTube channel. This room is for discussions about Linux and free software. For more Information, see https://yewtu.be/watch?v=U5Csn87SpNs Political discussi

0 msg/hr 1,904 members matrix.org
#46

Purism / PureOS / puri.sm

PureOS , talk about anything related to FOSS and purism !UNOFFICIAL!

0 msg/hr 1,650 members matrix.org
#47

Contributing (Authelia)

Discuss Contributing to the Authelia Open Source project

0 msg/hr 1,559 members matrix.org
#48

مجتمع هاكنتوش بالعربي

هاكنتوش بالعربي هو اول واكبر مجتمع عربي متكامل للهاكنتوش, مع اكبر شرح, وارشيف كيكست, وقوانين واضحة. https://هاكنتوش.com arhackintosh is the first and biggest arabic hackintosh community, with a fully

0 msg/hr 1,439 members mozilla.org
#49

Linuxpeople

📌 Topic: - Linux/personalizzazione - Open source - Off topic tech 🌐 Url: https://t.me/linuxhub https://t.me/linuxpeople_feed linuxhub.it linuxpeople.org Regole: https://linuxpeople.org/rules Discord

0 msg/hr 1,396 members matrix.org
#50

General

0 msg/hr 1,389 members fossi-chat.org
#52

SyncedStore library

Discussions about the SyncedStore open source project (https://syncedstore.org/docs/)

0 msg/hr 1,360 members matrix.org
#53

Monal IM

Monal IM - Official Support - XMPP client for iOS and macOS - https://monal-im.org Code of Conduct: https://github.com/monal-im/Monal/blob/develop/CODE_OF_CONDUCT.md Monal Wiki & FAQ: https://github

0 msg/hr 1,353 members aria-net.org
#54

Announcements

Announcements about the FOSSi Chat server.

0 msg/hr 1,349 members fossi-chat.org
#55

Matrix CRDT library

Discussions about the Matrix-CRDT open source project (http://github.com/yousefed/matrix-crdt)

0 msg/hr 1,345 members matrix.org
#56

BlockNote library

Discussions about the BlockNote open source project (https://github.com/yousefed/blocknote): a "Notion-style" block-based extensible text editor built on top of Prosemirror and Tiptap.

0 msg/hr 1,331 members matrix.org
#58

Litestar General

Main discussion room for the Starlite API open source library

0 msg/hr 1,156 members matrix.org
#59

Litestar Development

Development of the Starlite API opensource library

0 msg/hr 1,137 members matrix.org
#60

Le Alternative | Chat generale 🥸

Chat generale di Matrix di LeAlternative.net È possibile parlare di argomenti generali, qualche OT è permesso soprattutto se in ambito informatico. Chat dedicata a Linux: https://matrix.to/#/%23fedi

0 msg/hr 1,081 members tchncs.de
#62

ManageIQ/manageiq

ManageIQ Open Source Management Platform http://manageiq.org

0 msg/hr 1,012 members gitter.im
#63

kamon-io/Kamon

The Open Source tool for monitoring applications running on the JVM

0 msg/hr 983 members gitter.im
#64

Free Software Movement

Libre Software, free file formats, open standards/protocols. See also: #libregaming-matchmaking:tchncs.de https://matrixrooms.info | Free Software (popularly marketed as Open Source, OSS, FOSS, or FL

0 msg/hr 978 members midov.pl
#65

Perth Church of FLOSS

Free/Libre and Open Source Software Discussion. - Checkout out our #perth:matrix.org space for other Perth related rooms. - Rules: #perth-space-coc:matrix.org

0 msg/hr 959 members perthchat.org
#66

Neo Store

A modern FOSS F-Droid client. Neo Collective Space: https://matrix.to/#/#neo-collective:matrix.org

0 msg/hr 947 members tchncs.de
#69

Mozilla Open Design

Designers designing in Open Source for Open Source! Mozilla Open Design GitHub: https://github.com/mozilla/OpenDesign Branding Guidelines, Resources and More: https://mozilla.design

0 msg/hr 846 members mozilla.org
#70

Liberation Technology

Free software, open source, DIY, hacking, surveillance self-defence, digital co-ops. Code of conduct: #matrixunited-space:pixie.town.

0 msg/hr 836 members ponies.im
#71

Вільне ПЗ Україна

Обговорення вільного програмного забезпечення (FOSS/FLOSS — free/libre/open source software). Правила: 1. Спілкування українською мовою. 2. Спілкування у ввічливій формі, без образ, розпалювання воро

0 msg/hr 835 members midov.pl
#72

LinuxFR

Salon dédié à tout ce qui tourne autour de l'open source. Initialement créé pour une dépêche sur LinuxFR, d'où le nom, mais pas spécialement lié au site à part ça.

0 msg/hr 818 members cervoi.se
#74

📁┋community-projects

The FOSS community constantly creates! Share your favorite apps and repos in here for consideration on Linux For Everyone. Jason is watching! (It's OK to chat specifically about what's shared in here,

0 msg/hr 792 members matrix.org
#75

#fsf

Unofficial IRC community channel for the FSF | Chat about free software | Transitional details of the official channel: https://u.fsf.org/3em | List of official channels: https://www.gnu.org/server/ir

0 msg/hr 784 members matrix.org
#76

AndBible Users

Bible Study App (And Bible) is an open source, offline Android Bible study application. The purpose of this group is solely for AndBible related topics. Please do not post unrelated articles, videos,

0 msg/hr 770 members tchncs.de
#78

OrchardCMS/Orchard

Orchard is a free, open source, community-focused Content Management System built on the ASP.NET MVC platform. This chat is no longer active, join us on Discord instead: https://orchardcore.net/discor

0 msg/hr 704 members gitter.im
#79

ICFOSS

0 msg/hr 682 members matrix.org
#80

DevConf.CZ 2025

Open source community conference June 12 - 14, 2025 Brno, Czech Republic devconf.info/cz/faq/#matrix

0 msg/hr 626 members devconf.cz
#81

OpenCode Community

The Free and Open Source Software Community of MAIT | please follow Code of conduct

0 msg/hr 625 members matrix.org
#82

Meshtastic

An open source, off-grid, hiking, climbing, skiing, GPS mesh communicator - Space: https://matrix.to/#/#meshtastic-space:matrix.org - No bridges without permission please. Note: This is an unofficial

0 msg/hr 611 members matrix.org
#83

Neo Launcher & Feed

A modern FOSS Android launcher. Neo Collective Space: https://matrix.to/#/#neo-collective:matrix.org

0 msg/hr 604 members tchncs.de
#84

OpenVoiceOS

OpenVoiceOS is a minimalistic linux OS bringing the open source voice assistant Mycroft A.I. to embedded, low-spec headless and/or small (touch)screen devices.

0 msg/hr 603 members matrix.org
#85

Aurora OSS - Discussion

A common room for Aurora Open Source Software. This room is currently bridged with Telegram at t.me/AuroraOSS • Website: https://auroraoss.com • Downloads: https://files.auroraoss.com • Aurora Store:

0 msg/hr 590 members auroraoss.com
#86

Writers

A room for authors, journalists, technical writers, etc! If you enjoy writing, be it fiction or fact, this is the room for you! Need a tool to help you write? Try Manuskript or bibisco, two Free Libre

0 msg/hr 564 members matrix.org
#87

Articles

News, blogs, etc. about Linux, free software, or just computers

0 msg/hr 560 members lug.oregonstate.edu
#88

Citadel Node

The open source Citadel node

0 msg/hr 553 members matrix.org
#89

Trinea/android-open-project

Collect and classify android open source projects, 交流 QQ 群：(入群理由必须填写群简介问题答案)185715999

0 msg/hr 552 members gitter.im
#90

riuso

Riuso del software e open source | Discussioni inerenti il catalogo:

0 msg/hr 546 members developers.italia.it
#91

GNU/Linux India General

General GNU/Linux, FOSS chat. IRC bridge: #gnulinuxindia at libera. Telegram: telegram.me/gnulinuxindia. XMPP: xmpp:[email protected]?join . all 4 are bridged Space @ #gli

0 msg/hr 540 members envs.net
#92

adminForge Chat

adminForge bietet kostenlose Dienste an. [Deutsch, German 🇩🇪, English 🇺🇲] Unser Ziel ist es eine freie und datensparsame Alternative zu bekannten Diensten zur Verfügung zu stellen. Unterstützen: ht

0 msg/hr 540 members cdom.de
#93

OSGeo General

Open Source Geospatial Foundation - chat about anything | http://www.osgeo.org | code of conduct: https://www.osgeo.org/code_of_conduct/ | Logs at https://view.matrix.org/alias/%23general:osgeo.org

0 msg/hr 539 members matrix.org
#95

odoo/odoo

Odoo (formerly OpenERP). Open Source Apps To Grow Your Business.

0 msg/hr 531 members gitter.im
#96

Tech

All things tech in Glasgow (see also #coding #computers #opensource) Next event: Monthly tech social (The Gamer Club) [6pm, 1st Fridays of the month] https://wiki.glasgow.social/tech

0 msg/hr 523 members glasgow.social
#97

Privacy Frontends

A space for alternative FOSS frontends for the proprietary internet: Invidious, Nitter, Bibliogram, Teddit, Piped... As well as their instance hosts! (Not endorsed by them)

0 msg/hr 512 members tchncs.de

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