Collaborative open-source document editing. Controlled by you. Create, edit, and collaborate with Collabora Office across desktop, web, and mobile.
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Joined September 2014
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Collabora Online 26.04 is here! 🚀
Our major annual release for 2026 brings together a decade of open-source, privacy-respecting document collaboration with new AI-assisted workflows, on your terms.
Highlights include:
✨ Optional AI assistance in Writer, Calc and Impress
🔎 Richer document comparison and review workflows
📊 New functions, formatting and filtering in Calc
🤝 Improved collaborative presenting in Impress
✅ Accessibility improvements, including BITV 2.0 recognition for Writer
⚡ Continued interoperability, performance and usability improvements
Built on the feedback and testing from CODE, Collabora Online 26.04 is now ready for production environments, helping organisations collaborate securely, scale confidently, and keep control of their documents.
Read the blog to see all the newest features: buff.ly/S84bNlv
Browser-based settings don't always follow users across devices.
Collabora Online's Server-side Settings let admins manage shared configurations while users keep their own preferences.
Custom dictionaries, document themes, and more via a WOPI-based API.
🔗col.la/settingsx
#CollaboraOnline #OpenSource #Integration
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Long presentation? Give your slides some structure.
Slide Sections in Collabora Online let you group slides by topic and use overview pages in ODP presentations.
👉 Try it in our demo: col.la/demox
#CollaboraOnline #Presentations #OpenSource
Moving to a new office suite can be daunting.
Collabora Online makes moving your documents to a new file system simple, offering a proven path to a smooth transition with support and guidance at every step.
Read out white paper to understand what you need to know about file compatibility, pilot testing, training, deployment and support.
🔗 col.la/migratex
#CollaboraOnline #OpenSource
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Thanks to everyone who worked on translating #CollaboraOnline on @WeblateOrg in October. You rock! 💜🤟
🥇 Roy-Magne Mo - 6660 strings (Norwegian Nynorsk, Norwegian Bokmål)
🥈 Michal Várady - 2455 strings (Czech)
🥉 Stephan Paternotte - 2360 strings (Dutch, English)
Full October stats.
🔗col.la/weblateoct26x
Translating is just one way to be part of the community. Our forum badge tier list shows how else you can contribute. Some badges are still waiting for their first owner!
👉 Join the fun & start contributing today: col.la/contribute
#CollaboraOnline #OpenSource #Community
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AI in your office suite, without your documents leaving your infrastructure?
At the South Tyrol Free Software Conference (@SFScon) in Bolzano, Thorsten Behrens will show how Collabora Office integrates AI features such as writing assistance, formula troubleshooting, and slide creation, while keeping data under your control.
He’ll also look at local and self-hosted LLM integration patterns, the latency and quality trade-offs involved, and the governance questions that remain even with an open model.
📍NOI Techpark, Bolzano
🗓 14 Nov
🔗 Find out more about the event: sfscon.it/
#OpenSource #DigitalSovereignty #SFSCON
ALT SFSCon 2026 poster by Collabora Office promoting a talk titled "Your Documents, Your Data: Integrating AI into Your Office Suite Without Surrendering Sovereignty," featuring speaker Thorsten Behrens, Managing Director, portrait on purple background; NOI Techpark Bolzano, 14 Nov 11:40.
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Many of Moselle’s firefighters are volunteers: people with daily jobs who give their free time to relief missions. For them, a new tool can’t come with a training course.
When @SDIS57 (Sapeurs-Pompiers de la Moselle), the fire and rescue service of Moselle, replaced its ageing and complex file server with a new collaborative platform, @Arawa_fr, an open source integrator, deployed Collabora Online as its document editor.
The result: collaborative editing in open formats, with control over their own data. And thanks to a familiar interface, users got started with user guides instead of training.
🔗 Read the full case study: col.la/sdis57arawax
#CollaboraOnline #OpenSource #DigitalSovereignty
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On the train? In a café? At the airport?
Wherever work finds you, your documents can come along. Collabora Office for Mobile lets you edit documents, spreadsheets, and presentations right on your phone or tablet, while keeping you in full control of your data.
→ Available for iOS, Android and ChromeOS
→ Open source
→ Works with Microsoft Office and OpenDocument files
Do you edit documents on the go, or wait until you’re back at your desk?
🔗 Try it today: col.la/mobiledemox
#CollaboraOffice #OpenSource #MobileProductivity
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Hola amigos! 🇪🇸
We're joining @Nextclouders Enterprise Day Madrid today.
Eloy Crespo is taking the stage to talk about making “Stunning documents, natively in Nextcloud”.
And this one's a little special: for the first time in nearly 11 years, Eloy is speaking about Collabora Online at home in Spain, in his own language! 💜
If you're there, come say hi!
#CollaboraOffice #Nextcloud #OpenSource #DigitalSovereignty
ALT Eloy Crespo, Collabora's VP of Sales & Business Development, smiling in front of a Collabora Online banner at Nextcloud Enterprise Day Madrid 2026.
How much control do you really have over your documents and data?
Our VP of Sales and Business Development, Eloy Crespo, joins Manuel Voigt, Open Source Consultant at Adfinis, for a practical discussion on sovereign collaboration.
They’ll walk through how public sector organisations and regulated enterprises can reduce vendor dependencies, keep control over their data, and collaborate securely in real time within their existing SharePoint environments.
🗓 5 November 2026, 9:30–10:30 CET
Whether you’re using SharePoint or exploring alternatives, join us and bring your questions!
🔗 Register here: adfinis.com/en/events/a-more…
#DigitalSovereignty #SharePoint #CollaboraOnline
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Working on one document with your team? Here’s what helps in #CollaboraOnline.
1. Click a colleague’s avatar and your view follows theirs, handy on review calls.
2. Every edit is tracked with author and time, in a colour per person.
3. Comments run in threads, and an @mention sends feedback straight to the right person.
4. When it’s time to share, add a password and an expiry date.
🔗 Swipe through to see each feature, or try our demo: buff.ly/Xo4zgIq
Which of these would help your team most?
#CollaboraOnline #OpenSource #Collaboration
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Thanks @LinuxNews_de for covering our statement on the Danish pilot: the F2 integration was completed, reported issues were resolved, and the pilot was interrupted by the elections and the ministry merger, not by technical difficulties. Work in Denmark continues.
Dänemark: Collabora widerspricht Darstellung des gescheiterten Pilotprojekts linuxnews.de/daenemark-colla… #collabora #opensource #linuxnews
Our full statement: collaboraonline.com/blog/den…
New in our community interview series: Areg, who started contributing to #CollaboraOnline to challenge himself and learn in public.
His first patch replaced bitmap icons in the font selector with vector graphics. Today he works on interoperability and back-end fixes, including a recent Calc crash fix.
He also shares what he's learned from code reviews, and why your first contribution doesn't have to be intimidating.
Do you remember your first open source contribution? We'd love to hear about it!
Read Areg's story: buff.ly/KXztfPF
#OpenSource
ALT Purple Collabora graphic with the large heading “INTERVIEW with Areg Nakashian”. On the right, Areg, a young man with dark curly hair in a purple Collabora hoodie, smiles while holding a microphone. In a white box on the left is his quote: “Access to information and to knowledge shouldn’t be a secret, and Collabora Online being open source aligns with that.
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Our team is packing its bags for November!
📍 2–3 Nov: DigSov EU Summit, Berlin
📍 3 Nov: @Nextclouders Enterprise Day, Madrid
📍 10 Nov: DACHNUG, Vienna
📍 13–14 Nov: @SFScon, Bolzano
Or join our webinars with Adfinis and @OpenText Filr on 5 Nov, and to learn more about the Microsoft Office Online Server deadline on 19 Nov.
Come say hello!
🔗 More events on our events page: buff.ly/f5alsgX
#CollaboraOnline #OpenSource #DigitalSovereignty
ALT Collabora Office locations for November across Europe: Nextcloud Enterprise Day — Madrid, 3 Nov; DigSov EU Summit — Berlin, 2–3 Nov; DACHNUG — Vienna, 10 Nov; SFSCon — Bolzano, 13–14 Nov; plus online webinars on 5 & 19 Nov.
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Before a plan leaves your team, make sure everyone who opens it can see it’s still a draft.
In Collabora Online Writer, you can add a text watermark like DRAFT or CONFIDENTIAL to the page background:
1. Open your document in Writer.
2. Go to Layout > Watermark.
3. Type your text.
4. Pick the font, angle, transparency and colour, then click OK.
The watermark stays visible while editing, in print and in PDF exports, so a draft keeps looking like a draft wherever it ends up.
🔗 Try it in the demo: buff.ly/mFsNxrS
#CollaboraOnline #OpenSource #Watermark
ALT The Collabora Online Writer interface with the Layout tab open and the Watermark button highlighted. The document, a Product Launch Plan with a purple header, a timeline table and short text sections, has a large diagonal grey DRAFT watermark across the page. A Watermark dialog shows Text: DRAFT, Font: Carlito, Angle: 45°, Transparency: 75%, with Cancel and OK buttons.
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Our statement on the Danish government’s Collabora Office pilot: the cBrain F2 integration was completed, reported issues were resolved, and a reorganisation paused the pilot before any evaluation concluded.
Work continues with other Danish authorities.
collaboraonline.com/blog/den…
Moving away from Google Workspace shouldn’t mean rebuilding the automations you rely on.
Collabora Online is adding support for add-ons written in Google Apps Script, so existing workflows can move to a self-hosted, open-source office suite.
Add-ons sit in the new Extensions menu, just like in Google’s editors, and can create charts and pivot tables, format spreadsheets, and work with presentations.
And it’s already happening: the open-source Docs to Markdown add-on now runs in Collabora Online too.
Curious what add-ons can do now? Here’s the full rundown.
🔗 buff.ly/yEgeof8
#CollaboraOnline #OpenSource #Interoperability #DigitalSovereignty
ALT Graphic with the heading “Google Apps Script Add-Ons” and the subheading “now in Collabora Online”. Below it is a screenshot of a spreadsheet in Collabora Online, with an add-on panel open on the side and charts in the document. The Collabora Online logo is in the bottom left corner, on a white and purple background.