Active Matrix Rooms

Active Open Source Matrix Rooms

Find 665 active open source 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.

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

#1

FOSSGralniowy Offtopic

Kanał dla członków i sympatyków FOSSGralni na wszystkie rozmowy, które normalnie by nie pasowały do tematyki gier FOSS. Regulamin naszej przestrzeni: https://fossgralnia.pl/regulamin/

55 msg/hr 44 members noevil.pl
#2

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

17 msg/hr 680 members matrix.org
#3

Mastodon

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

10.0 msg/hr 50 members glasgow.social
#4

FOSS on MediaTek MT6735

Running free and open-source software on Mediatek MT6735 devices throughout the boot chain and the OS. Mainline U-Boot and Linux porting take place here. | Where it all started: https://github.com/arz

3.2 msg/hr 133 members matrix.org
#5

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

2.7 msg/hr 5,417 members matrix.org
#6

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.

2.0 msg/hr 840 members cervoi.se
#7

OpenDev

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

1.6 msg/hr 117 members opendev.org
#8

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

1.0 msg/hr 6,852 members envs.net
#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

0.83 msg/hr 176 members matrix.org
#10

TheAlternative - Community

 For all things TheAlternative / Digital Sustainability / Free Software / Linux

0.33 msg/hr 271 members matrix.org
#11

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: h

0.17 msg/hr 572 members nope.chat
#12

ManageIQ/manageiq

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

0.17 msg/hr 1,014 members gitter.im
#13

#mash-playbook:devture.com

An Ansible playbook which lets you install various FOSS services on your own server: https://github.com/mother-of-all-self-hosting/mash-playbook | RSS feed room with upstream component releases: #comp

0.10 msg/hr 212 members devture.com
#14

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

0.08 msg/hr 623 members matrix.org
#15

PCAPdroid

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

0.08 msg/hr 8,220 members matrix.org
#16

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

0.08 msg/hr 1,423 members matrix.org
#17

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 1,925 members linuxdelta.com
#18

LibreLane

LibreLane, the ASIC infrastructure library. https://github.com/librelane/librelane

0.08 msg/hr 267 members fossi-chat.org
#19

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.

0.06 msg/hr 80 members matrix.org
#20

#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.

0.06 msg/hr 60 members matrix.org
#21

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

0.06 msg/hr 440 members grin.hu
#22

OSArch - General

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

0.05 msg/hr 631 members matrix.org
#23

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 26,107 members envs.net
#24

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 23,700 members tchncs.de
#25

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 22,558 members tchncs.de
#26

Developers Italia

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

0 msg/hr 12,811 members matrixrooms.info
#27

(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 9,309 members f-droid.org
#28

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 8,938 members auroraoss.com
#29

fossasia/fossasia

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

0 msg/hr 6,316 members gitter.im
#30

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 4,894 members matrix.org
#32

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 4,492 members gitter.im
#33

Neo Store

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

0 msg/hr 4,196 members matrix.org
#35

openSUSE Mastodon

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

0 msg/hr 3,340 members opensuse.org
#36

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 3,206 members gitter.im
#37

KDE Community

An international team developing and distributing Open Source software.

0 msg/hr 2,640 members 4d2.org
#38

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 2,526 members tchncs.de
#40

Neo Launcher

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

0 msg/hr 1,920 members matrix.org
#41

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 1,895 members matrix.org
#42

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 msg/hr 1,856 members vern.cc
#43

Announcements

Announcements about the FOSSi Chat server.

0 msg/hr 1,734 members fossi-chat.org
#44

Contributing (Authelia)

Discuss Contributing to the Authelia Open Source project

0 msg/hr 1,672 members matrix.org
#45

Purism / PureOS / puri.sm

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

0 msg/hr 1,644 members matrix.org
#46

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 1,526 members mozilla.org
#47

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 1,456 members aria-net.org
#48

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 1,433 members matrix.org
#49

General

0 msg/hr 1,389 members fossi-chat.org
#51

SyncedStore library

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

0 msg/hr 1,360 members matrix.org
#52

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
#53

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 msg/hr 1,339 members 4d2.org
#54

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
#56

Litestar General

Main discussion room for the Starlite API open source library

0 msg/hr 1,157 members matrix.org
#57

Litestar Development

Development of the Starlite API opensource library

0 msg/hr 1,138 members matrix.org
#58

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 1,100 members tchncs.de
#60

kamon-io/Kamon

The Open Source tool for monitoring applications running on the JVM

0 msg/hr 984 members gitter.im
#61

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
#62

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
#63

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
#66

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 852 members midov.pl
#67

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 851 members mozilla.org
#69

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
#70

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 798 members tchncs.de
#71

#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 794 members matrix.org
#72

📁┋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
#74

DevConf.CZ 2025

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

0 msg/hr 715 members devconf.cz
#75

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
#76

ICFOSS

0 msg/hr 690 members matrix.org
#77

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 msg/hr 643 members fsfe.org
#78

OpenCode Community

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

0 msg/hr 631 members matrix.org
#79

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 611 members matrix.org
#80

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
#81

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 602 members envs.net
#82

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
#83

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 582 members matrix.org
#84

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 581 members matrix.org
#85

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 msg/hr 575 members tchncs.de
#86

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 564 members tchncs.de
#87

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 562 members glasgow.social
#88

Articles

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

0 msg/hr 560 members lug.oregonstate.edu
#89

Citadel Node

The open source Citadel node

0 msg/hr 553 members matrix.org
#90

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
#91

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 547 members matrix.org
#92

riuso

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

0 msg/hr 547 members developers.italia.it
#94

odoo/odoo

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

0 msg/hr 531 members gitter.im
#95

Photography

Photography with a FOSS twist!

0 msg/hr 526 members linuxdelta.com
#96

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 511 members cdom.de

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