Active Matrix Rooms

Active Open Source Matrix Rooms

Find 666 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.

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

#1

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

84 msg/hr 1,866 members vern.cc
#2

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

44 msg/hr 134 members matrix.org
#3

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

39 msg/hr 5,426 members matrix.org
#4

OpenDev

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

5.1 msg/hr 117 members opendev.org
#5

PCAPdroid

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

3.9 msg/hr 8,282 members matrix.org
#6

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 .

2.0 msg/hr 644 members fsfe.org
#7

OSArch - General

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

1.9 msg/hr 631 members matrix.org
#8

Mastodon

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

1.00 msg/hr 50 members glasgow.social
#9

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

0.80 msg/hr 1,351 members 4d2.org
#10

#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

0.08 msg/hr 175 members matrix.org
#11

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,

0.08 msg/hr 799 members tchncs.de
#12

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

0.08 msg/hr 591 members nope.chat
#14

The Artifical Dominion

A place to discuss Open Source AI Developments and projects

0.08 msg/hr 35 members linuxdelta.com
#15

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

0.07 msg/hr 1,461 members aria-net.org
#16

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 73 members sibnsk.net
#17

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 26,108 members envs.net
#18

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
#19

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
#20

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
#21

(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 9,305 members f-droid.org
#22

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 8,937 members auroraoss.com
#23

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 msg/hr 6,859 members envs.net
#24

fossasia/fossasia

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

0 msg/hr 6,315 members gitter.im
#25

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 4,892 members matrix.org
#27

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
#28

Neo Store

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

0 msg/hr 4,195 members matrix.org
#30

openSUSE Mastodon

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

0 msg/hr 3,339 members opensuse.org
#31

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
#32

KDE Community

An international team developing and distributing Open Source software.

0 msg/hr 2,637 members 4d2.org
#33

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
#35

The Geek Lab

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

0 msg/hr 1,926 members linuxdelta.com
#36

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
#37

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
#38

Announcements

Announcements about the FOSSi Chat server.

0 msg/hr 1,739 members fossi-chat.org
#39

Contributing (Authelia)

Discuss Contributing to the Authelia Open Source project

0 msg/hr 1,673 members matrix.org
#40

Purism / PureOS / puri.sm

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

0 msg/hr 1,643 members matrix.org
#41

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
#42

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
#43

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 msg/hr 1,429 members matrix.org
#44

General

0 msg/hr 1,389 members fossi-chat.org
#46

SyncedStore library

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

0 msg/hr 1,360 members matrix.org
#47

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
#48

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
#50

Litestar General

Main discussion room for the Starlite API open source library

0 msg/hr 1,157 members matrix.org
#51

Litestar Development

Development of the Starlite API opensource library

0 msg/hr 1,138 members matrix.org
#52

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
#53

ManageIQ/manageiq

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

0 msg/hr 1,014 members gitter.im
#55

kamon-io/Kamon

The Open Source tool for monitoring applications running on the JVM

0 msg/hr 984 members gitter.im
#56

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
#57

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
#58

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
#61

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
#62

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
#64

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 840 members cervoi.se
#65

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
#66

#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
#67

📁┋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
#69

DevConf.CZ 2025

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

0 msg/hr 714 members devconf.cz
#70

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
#71

ICFOSS

0 msg/hr 690 members matrix.org
#72

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 msg/hr 680 members matrix.org
#73

OpenCode Community

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

0 msg/hr 632 members matrix.org
#74

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 msg/hr 627 members matrix.org
#75

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
#76

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
#77

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 603 members envs.net
#78

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
#79

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 582 members matrix.org
#80

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
#81

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
#82

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
#83

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 563 members glasgow.social
#84

Articles

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

0 msg/hr 560 members lug.oregonstate.edu
#85

Citadel Node

The open source Citadel node

0 msg/hr 553 members matrix.org
#86

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
#87

riuso

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

0 msg/hr 547 members developers.italia.it
#88

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 546 members matrix.org
#89

Photography

Photography with a FOSS twist!

0 msg/hr 531 members linuxdelta.com
#90

odoo/odoo

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

0 msg/hr 531 members gitter.im
#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 511 members cdom.de
#94

Chipathon 2025

IEEE SSCS Chipathon 2025 https://github.com/sscs-ose/sscs-chipathon-2025 Friday meetings at 11AM Eastern Time at this zoom link https://us06web.zoom.us/j/83060635740?pwd=UbIWLnu8C7nyLTZE7JglzRgbwSa23r

0 msg/hr 503 members fossi-chat.org
#95

ihp-sg13

Discussions about the IHP SG13 Open PDKs and processes https://github.com/IHP-GmbH/IHP-Open-PDK

0 msg/hr 475 members fossi-chat.org
#96

Open Source

https://opensource.glasgow.social | https://www.meetup.com/Open-Source-Glasgow/ | Next social: After work drinks in the pub (The Gamer Club) [6pm, 1st Fridays of the month] | Next tutorial: Command li

0 msg/hr 446 members glasgow.social
#97

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 msg/hr 441 members grin.hu
#98

Fosscord

The official Fosscord matrix room Bridged to 806142446529806367 aka #general in the Fosscord Guild on discord.com Permanent link for the channel. https://discord.gg/CAeG8DnnhE COC Found on GitHub

0 msg/hr 440 members feline.support

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