22 open-source Office & Productivity vendors
Open-source software for Office & Productivity that you can self-host, with auditable source code — regardless of the developer's headquarters.
- vendors scored
- 22
- European
- 16
- last checked
- 11 October 2026
Vendors, scored
Score per vendor: 0 = high exposure, 100 = sovereign
Sort
- Sovereignty score 94 out of 100Calligra SuiteGermany · Self-hosted / open sourceOpen-source office suite by KDE e.V. (Berlin).
- Sovereignty score 94 out of 100CryptPadFrance · EU sovereignFrench end-to-end encrypted collaborative office suite with documents, sheets, and presentations
- Sovereignty score 94 out of 100EGroupwareGermany · EU sovereignGerman open-source groupware suite with CRM, project management, and collaboration tools
- Sovereignty score 94 out of 100Euro-OfficeGermany · Self-hosted / open sourceOpen-source, Microsoft-compatible office suite from a EuroStack consortium (IONOS, Nextcloud, XWiki, OpenProject, Soverin, Abilian, BTactic); tech preview March 2026, stable release summer 2026.
- Sovereignty score 94 out of 100eXo PlatformFrance · EU sovereignFrench open-source digital-workplace platform (Paris, founded 2003) with document management and collaboration spaces, 100,000+ public-sector users.
- Sovereignty score 94 out of 100Framasoft (Framapad/Framacalc)France · EU sovereignFrench non-profit association (Lyon, founded 2001) operating a free, open-source collaborative text-and-spreadsheet suite as an alternative to Google/Microsoft.
- Sovereignty score 94 out of 100grommunioAustria · Self-hosted / open sourceAustrian open-source groupware and office suite as a Microsoft Exchange and Office alternative
- Sovereignty score 94 out of 100Group-OfficeNetherlands · EU sovereignDutch open-source groupware with email, calendar, file sharing, and CRM modules
- Sovereignty score 94 out of 100La Suite numérique DocsFrance · Self-hosted / open sourceOpen-source real-time collaborative text editor from La Suite numérique, developed by France's DINUM and Germany's ZenDiS.
- Sovereignty score 94 out of 100LibreOfficeGermany · Self-hosted / open sourceFree open-source office suite maintained by The Document Foundation in Germany
- Sovereignty score 94 out of 100Nextcloud OfficeGermany · Self-hosted / open sourceIntegrated office suite within Nextcloud powered by Euro-Office (with Collabora Online available as an alternative) for self-hosted collaboration
- Sovereignty score 94 out of 100Open-XchangeGermany · EU sovereignGerman open-source email, calendar, and office platform used by major European ISPs
- Sovereignty score 94 out of 100openDeskGermany · Self-hosted / open sourceSovereign German government-initiative office suite (ZenDiS), bundled from open-source components.
- Sovereignty score 94 out of 100PDFsamItaly · Self-hosted / open sourceOpen-source desktop program (AGPL) to split, merge, rotate and extract PDF pages, by Sober Lemur S.r.l. in Italy.
- Sovereignty score 94 out of 100Tiki Wiki CMS GroupwareFrance · Self-hosted / open sourceOpen-source wiki-based groupware with built-in office and collaboration features
- Sovereignty score 92 out of 100TypstGermany · Self-hosted / open sourceMarkup-based typesetting system for documents by Typst GmbH in Berlin; open-source compiler (Apache-2.0) and a collaborative online editor.
- Sovereignty score 79 out of 100Collabora OnlineUnited Kingdom · Self-hosted / open sourceUK-based enterprise LibreOffice-powered online office suite for self-hosting and cloud
- Sovereignty score 71 out of 100EtherpadUnited States · Self-hosted / open sourceOpen-source real-time collaborative text editor, widely deployed across European institutions
- Sovereignty score 71 out of 100GristUnited States · Non-EU vendorGrist is a flexible spreadsheet/database hybrid built by Grist Labs (New York City, US). France's ANCT and DINUM are major code contributors and deploy sovereign instances for public administration, but Grist Labs remains a US-headquartered, privately held company with no French ownership.
- Sovereignty score 71 out of 100HordeUnited States · Self-hosted / open sourceOpen-source groupware framework providing webmail, calendar, and notes used by European providers
- Sovereignty score 69 out of 100Apache OpenOfficeUnited States · Self-hosted / open sourceOpen-source office suite under the Apache 2.0 licence, developed by volunteers within the Apache Software Foundation (USA), for Windows, Linux and macOS.
- Sovereignty score 69 out of 100Stirling-PDFUnited States · Self-hosted / open sourceOpen-source PDF toolkit by Stirling PDF, Inc. (US) for editing, merging and converting PDFs; runs locally and on self-managed servers, with API.
Assess your own stack in the assessment
Assess your stack →