The open source EFSS OG. Self-hosted file sync, share & collaboration since 2010. Apache 2.0. No CLA. No lock-in. Yours to deploy, fork, and build on.

Germany
Joined December 2011
We’ll be at #OSSummit + #EmbeddedLinux Conference Europe, 7-9 October in Prague! 🌍 This is THE spot to connect with open source enthusiasts, discover emerging trends, and get inspired by what’s next in the ecosystem. Let's chat and get ownCloud swag at booth 50!
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Quick reminder: our monthly Public OSPO Review is tomorrow, Fri Sept 25, 9 am (GMT+1). We'll cover recent releases, do some demos and open the floor for your feedback. Open to anyone curious about ownCloud, no account needed, just show up and listen. hubs.ly/Q04ydZzD0
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ownCloud Web shipped eleven extensions this summer: nine AI-powered tools for document synthesis, tagging, and insights, plus Group Management and File Comments apps to fill oCIS UI gaps. tinyurl.com/2dbyreer #OpenSource
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ownCloud Infinite Scale 8.0.8 fixes share metadata corruption under concurrent writes and includes two security dependency updates (golang.org/x/image and Go stdlib). tinyurl.com/2bhxlqma
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ownCloud Desktop Client 7.1.1 RC1 fixes an OIDC bug that broke Microsoft Entra ID login. A quint16/qint64 type mismatch, if you're into that level of detail. RC only for now — test before you trust it. hubs.ly/Q04tQjsn0
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A Black Hat '26 talk defeated PHP's own memory hardening. Nextcloud & WordPress were named directly. oCIS doesn't run PHP. It's Go, single-binary, no external SQL in the metadata path. That doesn't mean immune, it means this bypass has nothing to reach. hubs.ly/Q04tQkND0
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Part of the ownCloud team is at #FrOSCon2026 showing off oCIS, talking open source, open source governance & our #OSPO. They'd love to hear from you! Find them at their booth near the main entrance or join the workshop on Sat or the presentation on Sun. owncloud.com/events
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ownCloud will be at FrOSCon '26 (Aug 15–16, Bonn)! Catch our talk, join our workshop, drop by our Dev Room & booth we're sharing with @collaboraoffice. Come talk open source, oCIS, and everything in between. hubs.ly/Q04t1mqR0 #FrOSCon #FrOSCon2026 #OpenSource
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ownCloud Infinite Scale MCP Server 1.1.0 enforces bearer-secret auth on HTTP transport, fixes 4 oCIS tool shapes tinyurl.com/2b354uou #OpenSource
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Version changelog now in oCIS: See file changes summarized with AI-assisted diffing tinyurl.com/23bz7d6h #OpenSource
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ownCloud web extension brings AI-assisted file editing: chat with docs on your server, rewrite content with your LLM tinyurl.com/26hr4lq6 #OpenSource
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ownCloud Server 11.0.0 ships: PHP 8.3 baseline, G2 code signing, 11 security fixes tinyurl.com/25bevxc2 #OpenSource
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ownCloud Web 12.5.0 brings Collabora Save-As support and a new HTML editor app tinyurl.com/2cfd9v9z #OpenSource
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ownCloud just took a major step towards open, transparent development. The Web frontend was merged into the oCIS repo & relicensed to Apache-2.0, unifying the codebase under a single license. Build on & extend it: tinyurl.com/2829d9r7 #OpenSource #DigitalSovereignty #ownCloud
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ownCloud Server 11.0.0-rc1 out now for compatibility testing! The first release candidate for the next major version prioritizes legacy code cleanup and modernization. Try it on a test system and report any issues. #OpenSource #DigitalSovereignty tinyurl.com/2cjblg9j
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