Free and Open Source Software = FOSS & Hardware Vendors;
- Pine64 ( https://pine64.org/community/ ) – PinePhone, Pinebook Pro, PineTime
- MNT Research ( https://mntre.com/reform.html ) – MNT Reform, Pocket Reform
- SHIFT GmbH (https://www.shift.eco/en/closing-the-loop-ctl/ ) – SHIFT6mq, SHIFT13mi
- Fairphone ( https://shop.fairphone.com/nl/about-us ) – Modular smartphones with FOSS support
- Volla Phone ( https://volla.online/en/ ) – Ubuntu Touch or VollaOS
- Murena ( https://murena.com/ ) — Range of products which rely on open-source software, including the deGoogled operating system /e/OS and NextCloud.
- System76 — Open hardware and an Ubuntu-based Linux OS ( https://system76.com/ )
- deGoogled & Custom “Read-Only Memory” (ROM) Devices — 1. GrapheneOS ( https://grapheneos.org/ often installed on Google Pixel devices), 2. CalyxOS ( https://calyxos.org/ also mainly on Pixel devices), 3. Community-driven mobile OS projects targeting Linux phones: PostmarketOS ( https://postmarketos.org/ ), Ubuntu Touch ( https://www.ubuntu-touch.io/ ) and Sailfish OS ( https://sailfishos.org/info/ )
- BeagleBoard ( https://www.beagleboard.org/ ) – BeagleBone SBCs
- Libre Computer ( https://libre.computer/ ) – Le Potato (AML-S905X-CC)
- Technoethical ( https://tehnoetic.com/ ) – Libreboot ThinkPads
- Olimex ( https://www.olimex.com/Products/DIY-Laptop/ ) – OLinuXino boards
- RISC-V International ( https://riscv.org/ ) – Open processor standard
- SiFive ( https://www.sifive.com/about ) – RISC-V open-source processors
- Libre Space Foundation ( https://libre.space/ ) – SatNOGS satellite technology
- Open Compute Project ( https://www.opencompute.org/ ) – Data center hardware
- Open Source Ecology ( https://www.opensourceecology.org/ ) – Hardware for agriculture & industry
Privacy-first Alternatives & ToolsAuthentication (2FA)
- Aegis Authenticator (Android) ( https://getaegis.app/#features )
- ente Auth ( https://ente.io/auth/ )
- Owky ( https://github.com/charlietango/owky )
- FreeOTPPlus ( https://github.com/helloworld1/FreeOTPPlus )
- Stratum ( https://stratumauth.com/ former Authenticator Pro)
Analytics
- Matomo ( https://matomo.org/ )
- Plausible ( https://plausible.io/ )
- Umami ( https://umami.is/ )
- GoatCounter ( https://www.goatcounter.com/ )
- Swetrix ( https://swetrix.com/ )
Android & App Stores
- F-Droid ( https://f-droid.org/ )
- Aurora Store ( https://auroraoss.com/ )
- Droid-ify ( https://github.com/Droid-ify/client )
Artificial Intelligence (AI)
- Aleph Alpha (Germany) ( https://aleph-alpha.com/ )
- Hugging Face (France/Germany)
- Mistral ( https://chat.mistral.ai/chat )
- LocalAI ( https://localai.io/ )
- Stability AI (UK + EU collaborators) ( https://stability.ai/ )
- Jan ( https://jan.ai/ )
- Nomic GPT4ALL ( https://www.nomic.ai/gpt4all )
- Stable Diffusion ( https://www.diffus.me/ )
- Whisper.cpp ( https://github.com/ggerganov/whisper.cpp )
- DeepL (Germany) ( https://www.deepl.com/ )
Collaborative Decision Making tools
- Loomio ( https://www.loomio.com/ )
- Consul ( https://www.consul.io/ )
- Decidim ( https://decidim.org/ )
Data Collection & Management tools
- Open Data Kit ( https://getodk.org/ )
- KoBoToolbox ( https://www.kobotoolbox.org/ )
- Ona ( https://help.ona.io/knowledge-base/guide-new-to-ona/ )
- HDX ( https://data.humdata.org/ )
- Primero ( https://www.primero.org/ )
- Nuxeo ( https://www.hyland.com/solutions/products/nuxeo-platform)
File Management & Sharing
- Nextcloud ( https://nextcloud.com/ )
- Proton Drive ( https://proton.me/drive )
- Cryptomator ( https://cryptomator.org/ )
- Seafile ( https://www.seafile.com/en/home/ )
Instant Messaging
- Matrix Protocol + Element (UK) ( https://matrix.org / https://element.io )
- Threema (Switzerland) ( https://threema.ch/en )
- Wire (Switzerland) ( https://wire.com/en/ )
- SimpleX Chat (EU-wide, mostly Austria/CEE) ( https://simplex.chat/ )
- Session (Australia/Europe hybrid via Loki Foundation, used widely in EU) ( https://getsession.org/ )
- Tox Protocol (EU devs-heavy OSS project) ( https://tox.chat/download.html )
- Delta Chat (Germany) ( https://delta.chat/en/ )
- Briar (Germany) ( https://briarproject.org/ )
- XMPP (Extensible Messaging and Presence Protocol) + Conversations client (Germany) ( https://xmpp.org/ )
- Olvid (France) ( https://www.olvid.io/en/ )
- Signal (US based) ( https://signal.org/ )
Password Managers
- Bitwarden ( https://bitwarden.com/ )
- KeePassXC ( https://keepassxc.org/ )
- Passbolt ( https://www.passbolt.com/ )
- Proton Pass ( https://proton.me/pass )
Publishing & Broadcasting tools
- Scribus ( https://sourceforge.net/projects/scribus/ )
- OBS ( https://obsproject.com/ )
Search Engines
- SearXNG ( https://docs.searxng.org/ )
- Qwant (France) ( https://www.qwant.com/ )
- Mojeek (UK) ( https://www.mojeek.com/ )
- MetaGer (Germany) ( https://metager.org/ )
- Swisscows (Switzerland) ( https://swisscows.com/en )
- YaCy (Germany) ( https://yacy.net/ )
- Brave Search (US based) ( https://search.brave.com/ )
- DuckDuckGo (US based) ( https://duckduckgo.com/ )
Social Intranet solutions
- HumHub ( https://www.humhub.com/en/ )
- Elgg ( https://elgg.org/ )
Social Networks & Frontends
- Mastodon ( https://joinmastodon.org/ )
- Pixelfed ( https://pixelfed.org/ )
- Lemmy ( https://join-lemmy.org/ )
- PeerTube ( https://joinpeertube.org/ )
- Odysee ( https://odysee.com/ )
- Nitter ( https://nlnet.nl/project/Nitter/ )
- Libreddit ( https://github.com/libreddit/libreddit )
- Invidious (privacy-friendly frontends) ( https://invidious.io/ )
VPNs
- Mullvad VPN ( https://mullvad.net/en )
- IVPN ( https://www.ivpn.net/en/ )
- ProtonVPN ( https://protonvpn.com/ )
VOIP & Video Conferencing
- Jami ( https://jami.net/ )
- Mumble ( https://www.mumble.info/ )
- BigBlueButton ( https://bigbluebutton.org/ )
- Jitsi Meet ( https://jitsi.org/ )
Self-hosted Servers & IoT Ecosystems
- Yunohost ( https://yunohost.org/ )
- FreedomBox ( https://www.freedombox.org/ )
- OpenHAB ( https://www.openhab.org/ )
- The Things Network ( https://www.thethingsnetwork.org/ )
- Home Assistant ( https://www.home-assistant.io/ )
- CalyxOS ( https://calyxos.org/ )
- GrapheneOS ( https://grapheneos.org/ )
- PostmarketOS ( https://postmarketos.org/ )
Operating Systems
- PureOS – A Debian-based OS focused on privacy and security. (https://pureos.net/ )
- Qubes OS – A security-oriented OS using Xen-based compartmentalization. ( https://www.qubes-os.org/ )
- Trisquel – A 100% free GNU/Linux distribution. ( https://trisquel.info/ )
- Coreboot – An open-source firmware alternative to proprietary BIOS/UEFI. ( https://www.coreboot.org/ )
- System 76 Hardware & Pop – Open hardware and an Ubuntu-based Linux OS. ( https://system76.com/ )
Open Source ERP & Business Tools
- Odoo Community Edition ( https://odoo-community.org/ )
The Odoo Community Edition is technically open-source, but it is NOT 100% FOSS by strict definitions, depending on how you interpret "FOSS."Detailed breakdown:What’s open-source (FOSS) about Odoo ‘Community Edition’:
- The Community Edition is licensed under the LGPLv3 (Lesser General Public License).
- The source code is freely available, and you can:
- Download it.
- Modify it.
- Self-host it without restrictions.
- Build custom modules on top of it.
It qualifies as free software under OSI and FSF guidelines.Limitations (why some say "NOT fully FOSS"):
- Split model:
- The most advanced features (Studio, Helpdesk, Accounting, Marketing Automation, etc.) are only available in the ‘Enterprise Edition’, which is proprietary (commercial license).
- Closed-source Enterprise modules:
- Enterprise modules are NOT open-source and require a commercial subscription.
- UI/UX differences:
- Some key UX improvements (e.g., dashboards, themes, certain web views) are Enterprise-only.
- Dual licensing strategy:
- While the framework (Odoo Core) is LGPL, some parts of the Odoo ecosystem are purposely left out of the Community Edition to drive Enterprise sales.
- ERPNext ( https://frappe.io/erpnext )
- Tryton ( https://www.tryton.org/ )
- Dolibarr ( https://www.dolibarr.org/ )
- LedgerSMB ( https://ledgersmb.org/ )
- Metasfresh ( https://metasfresh.com/en/ )
- Crater ( https://crater.financial/ )
- Snipe-IT (IT Asset management) ( https://snipeitapp.com/ )
Android Apps
- Fennec F-Droid ( https://f-droid.org/packages/org.mozilla.fennec_fdroid/ ), DuckDuckGo Browser ( https://duckduckgo.com/ )
- K-9 Mail ( https://k9mail.app/ ), FairEmail ( https://email.faircode.eu/ )
- OpenKeychain ( https://www.openkeychain.org/ )
- NetGuard ( https://netguard.me/ ), RethinkDNS ( https://rethinkdns.com/ )
- VLC ( https://www.videolan.org/vlc/index.nl.html ), NewPipe ( https://newpipe.net/ )
- OsmAnd ( https://osmand.net/ ), Organic Maps ( https://organicmaps.app/ )
- TrackerControl (https://trackercontrol.org/ ), Shelter ( https://github.com/PeterCxy/Shelter )
- KeePassDX ( https://www.keepassdx.com/ ), Aegis Authenticator ( https://getaegis.app/ )
Humanitarian & Geo-data tools
- Ushahidi ( https://www.ushahidi.com/ )
- Sahana EDEN ( https://eden.sahanafoundation.org/ )
- MissingMaps ( https://www.missingmaps.org/ )
- MapSwipe ( https://mapswipe.org/en/ )
- Cadasta ( https://cadasta.org/)
- OpenMapKit ( https://github.com/posm/OpenMapKit )
- GeoNode( https://geonode.org/ )
GIS & CAD Tools
- QGIS ( https://qgis.org/ ), GRASS GIS ( https://grass.osgeo.org/ )
- FreeCAD ( https://www.freecad.org/ ), LibreCAD ( https://librecad.org/ ), OpenSCAD ( https://openscad.org/ )
- Blender (3D) ( https://www.blender.org/ )
Supply Chain & DevOps
- Jenkins ( https://www.jenkins.io/ ), Gitea ( https://about.gitea.com/ ), GitLab CE ( https://gitlab.com/rluna-gitlab/gitlab-ce )
- Drone by Harness ( https://www.drone.io/ ), Woodpecker CI ( https://woodpecker-ci.org/ )
- Podman ( https://podman.io/ ), Kubernetes ( https://kubernetes.io/ ), Docker CE ( https://docs.docker.com/engine/install/ )
- Ansible ( https://docs.ansible.com/ ), Terraform OSS ( https://developer.hashicorp.com/terraform/intro/terraform-editions )
CRM & E-commerce Platforms
- SuiteCRM ( https://suitecrm.com/ ), EspoCRM ( https://www.espocrm.com/ ), YetiForce CRM ( https://yetiforce.com/en/ )
- PrestaShop ( https://prestashop.com/ ), Saleor ( https://saleor.io/ ), Sylius ( https://sylius.com/ )
Marketing Automation & Customer Support
- Mautic ( https://mautic.org/ ), Zammad ( https://zammad.com/en ), Chatwoot ( https://www.chatwoot.com/ )
Accounting Tools
- GnuCash ( https://www.gnucash.org/index.phtml?lang=en_US ), Akaunting ( https://akaunting.com/ ), Dolibarr ( https://www.dolibarr.org/ ), Ledger-cli ( https://ledger-cli.org/ )
Project Management Tools
- OpenProject (Germany) Focus: Full-featured project management, Gantt charts, agile boards, time tracking, and wiki. Strength: Strong compliance features (GDPR, ISO-certified), heavy use in EU public sector. ( https://www.openproject.org )
- Taiga (Spain) Focus: Agile project management (Scrum, Kanban, Scrumban). Strength: Beautiful UI, backlogs, sprint management, and issue tracking. ( https://taiga.io/ )
- Kanboard (France) Focus: Simple, lightweight Kanban board, self-hosted and minimalistic. Strength: Super lightweight, fast, ideal for small teams or personal task management. ( https://kanboard.org/ )
- Wekan (Finland) Focus: Open-source Trello-like Kanban board. Strength: Easy to deploy, visually close to Trello, with simple drag-and-drop cards. ( https://wekan.github.io/ )
- Tuleap (France) Focus: Agile & DevOps platform (Scrum, Kanban, issue tracking, CI/CD integration). Strength: Used by enterprises & public sector; ALM (Application Lifecycle Management) ( https://www.tuleap.org/ )
- Focalboard (Mattermost project, popular in EU OSS) Focus: Kanban + personal productivity tool. Strength: Standalone or integrated with Mattermost as a project board. ( https://www.focalboard.com/ )
- Leantime (Austria/Germany) Focus: Lightweight project management for startups & SMBs. Strength: Combines Kanban, milestones, timesheets, and research boards. ( https://leantime.io/ )
Knowledge Base & Documentation
- BookStack ( https://www.bookstackapp.com/ ), Wiki.js ( https://js.wiki/ ), Outline ( https://www.getoutline.com/ )
Monitoring & Observability
- Prometheus ( https://prometheus.io/ ), Grafana ( https://grafana.com/ ), Netdata ( https://www.netdata.cloud/ ), Zabbix ( https://www.zabbix.com/ )
Security & Hardening Tools
- OpenVAS ( https://www.openvas.org/ ), CrowdSec ( https://www.crowdsec.net/ ), Lynis ( https://cisofy.com/lynis/ ), RKHunter ( https://www.kali.org/tools/rkhunter/ ), OSSEC ( https://www.ossec.net/ )
E-learning & LMS Platforms
- Moodle ( https://moodle.org/?lang=nl ), Chamilo ( https://chamilo.org/en/ ), Opencast ( https://opencast.org/ ), Canvas LMS ( https://www.instructure.com/canvas )
Federated Communication Platforms
- Matrix Synapse ( https://github.com/matrix-org/synapse ), Prosody ( https://prosody.im/ ), ejabberd ( https://www.ejabberd.im/index.html )
- Nostr ( https://nostr.com/ ), Rocket.Chat ( https://www.rocket.chat/ ), Mattermost ( https://mattermost.com/ ), Zulip ( https://zulip.com/ )
Privacy Browser Extensions
- uBlock Origin ( https://ublockorigin.com/ ), Privacy Badger ( https://privacybadger.org/ ), Decentraleyes ( https://decentraleyes.org/ )
- LibRedirect ( https://libredirect.github.io/ ), HTTPS Everywhere ( https://www.eff.org/https-everywhere ), LocalCDN ( https://www.localcdn.org/ )
Video & Multimedia Tools
- Kdenlive ( https://kdenlive.org/ ), Olive Video Editor ( https://www.olivevideoeditor.org/ ), Shotcut ( https://www.shotcut.org/ )
- OBS Studio ( https://obsproject.com/ ), Audacity ( https://www.audacityteam.org/ ), LosslessCut ( https://github.com/mifi/lossless-cut )
- Darktable ( https://www.darktable.org/ ), GIMP ( https://www.gimp.org/ ), Inkscape ( https://inkscape.org/nl/ ), Krita ( https://krita.org/en/ ), Excalidraw ( https://excalidraw.com/ )
Extra Tools & Ecosystem Clarifications
- Libreboot (firmware) ( https://libreboot.org/ )
- PineTime ( https://pine64.org/devices/pinetime/ ), InfiniTime OS (smartwatch OS) ( https://github.com/InfiniTimeOrg/InfiniTime )
- Phosh ( https://phosh.mobi/ ), Sxmo (mobile Linux desktop environments) ( https://sxmo.org/ )
- Lakka (FOSS retro gaming OS) ( https://www.lakka.tv/ )
Hosting & Git Platforms
- Codeberg (based on Gitea) ( https://codeberg.org/ )
- Forgejo (community-driven Gitea fork) ( https://forgejo.org/ )
- Radicle (P2P code collaboration) ( https://radicle.xyz/ )
Provider Platforms
- Hetzner, Known for affordable and transparent cloud and dedicated server hosting with an open source mindset. No vendor lock-in. ( https://www.hetzner.com/unternehmen/ueber-uns/ )
- 1984 Hosting, Icelandic provider with a strong ethical focus on privacy and human rights. Supports FOSS, self-hosting, and encryption. ( https://1984.hosting/ )
- Safe Swiss Cloud, Swiss-based secure cloud provider, specializing in enterprise-grade IaaS with full compliance to Swiss privacy laws. Supports open-source stacks like OpenStack and Kubernetes, with a strong FOSS-friendly approach. ( https://safeswisscloud.com/en/ )
- Greenhost, Dutch company offering sustainable hosting with a focus on digital rights and open standards. Strong supporter of the open source community. ( https://greenhost.nl/ )
- Scaleway Elements, European cloud provider with support for FOSS-based solutions, offering bare-metal and virtualized infrastructure while respecting EU data sovereignty. ( https://www.scaleway.com/en/ )
- VPSFree.cz, Non-profit cooperative providing virtual servers running entirely on free software. Member-driven and community-oriented. ( https://vpsfree.org/ )
- Infomaniak, Swiss privacy-first provider offering cloud services like Nextcloud hosting, video conferencing, and email with FOSS integrations. ( https://www.infomaniak.com/en )
- OpenNebula, Open-source private cloud & edge computing platform that also offers managed cloud services based on their open-source technology. ( https://opennebula.io/ )
- Fairkom, Austrian cooperative offering ethical FOSS cloud services including Nextcloud, BigBlueButton, Rocket.Chat, and Mattermost. ( https://www.fairkom.eu/en )
- Exoscale, Swiss cloud provider with support for Kubernetes, Terraform, and FOSS deployments. Known for strict privacy policies and GDPR compliance. ( https://www.exoscale.com/ )