Berlin local-first workspace: encrypted objects, offline by default, sync when you say so.
Collection
Open source
46 toolsYou can read it, fork it, and audit what it sends home.
Amsterdam database-spreadsheet hybrid that runs on your own Postgres.
Freiburg team behind the FLUX image models, with open weights at the smaller tiers.
Git hosting run by a Berlin non-profit association, funded by members rather than a platform strategy.
LibreOffice in a browser tab, deployed next to your own file storage.
Push-to-deploy for apps and databases, on a server you are already paying for.
Generate typed SDKs, interactive docs, and MCP servers from your API specs
Client-side vaults for the files you still keep in somebody else’s cloud.
Zero-knowledge docs, sheets, slides and whiteboards, where the server cannot read the document.
Matrix collaboration that several European governments already run on their own infrastructure.
The open source tool gateway — connect any agent to everything.
German zero-knowledge cloud where the clients are open source and the keys never leave the device.
The self-hostable forge behind Codeberg: pull requests, actions and packages on your own box.
German tracker blocker with a private search front-end attached.
Valencia zero-knowledge drive with open-source clients and a separate photo vault.
Hamburg survey engine with unlimited responses once you host it yourself.
Berlin non-profit behind the federated network where nobody owns the whole graph.
Paris lab shipping both open-weight and frontier models, servable inside EU regions.
Gothenburg VPN that issues you an account number instead of an identity, and still takes cash.
Berlin workflow automation with hundreds of nodes and a licence that lets you run it yourself.
Files, calendar, contacts, chat and office on hardware you control — the default answer when the answer has to be self-hosted.
Calls and chat inside your own Nextcloud, with no third-party signalling server in the path.
Swedish backend-as-a-service on Postgres and GraphQL, with EU regions by default.
Belgian open-source ERP covering CRM, invoicing, stock and payroll in one codebase.
French messenger with no server-side directory at all, certified by the national cyber agency.
Riga-built editors with the strongest OOXML fidelity outside Redmond, self-hostable per seat.
The community map database nearly every non-Google map is built on.
The agent development environment - run coding agents in parallel, each in its own worktree.
Munich identity, session and permission services split into composable open-source servers.
The original German file-sync server, rebuilt as Infinite Scale for larger estates.
Luxembourg password manager designed around team sharing, self-hostable from day one.
Federated video hosting from a French non-profit: no ads, no recommendation engine, no single owner.
Madrid design and prototyping tool built on web standards, self-hostable in full.
Cookie-free analytics in one small script, hosted in the EU or on your own box.
Paris open-source shop software with a deep module market and no platform fee.
Encrypted mail, calendar and drive under Swiss jurisdiction, funded by subscriptions instead of adjacency to an ad business.
Swiss VPN with open-source clients on every platform and audited no-logs claims.
German self-hosted password manager with granular sharing for ops teams.
German commerce platform that dominates European mid-market retail for good reasons.
Paris open-source headless CMS that runs on your own Node and your own database.
Łódź Symfony commerce framework, for shops that are really custom applications.
Swiss messenger that needs no phone number and keeps no contact graph to hand over.
Hanover encrypted mail with post-quantum key exchange and fully open-source clients.
Berlin-built encrypted messaging and conferencing on the MLS standard, deployed in regulated settings.
German open-source helpdesk that treats mail, chat and social as one ticket queue.
Swiss identity platform with real multi-tenancy and a self-host path that is not an afterthought.