u/CollaboraOnline

Collabora Online 26.04 is out, our major annual release for 2026. And it’s a special one, because this year marks ten years of Collabora Online. A decade of open source, privacy-respecting document collaboration, and we’re just getting started.

Read the full release announcement: Collabora Online 26.04 – Your Documents, Your AI, Your Decade of Data Sovereignty - Collabora Online and Collabora Office

A few highlights:

• Optional AI assistance in Writer, Calc and Impress, on your terms
• Richer document comparison and review workflows
• New functions, formatting and per-user views in Calc
• Improved collaborative presenting in Impress
• Accessibility improvements, including BITV 2.0 certification
• Continued interoperability, performance and usability improvements

We’re also hosting a free webinar on 10 September 2026 at 15:00 CEST if you’d like a guided tour of what’s new: What’s New in Collabora Office 26.04: Live Feature Tour - Collabora Online and Collabora Office.

Try it out and tell us what you think, we’d love to hear your feedback here!

Column, Bar, Line, Pie, Pie-of-Pie, Net, Scatter, Bubble charts, and more. Collabora Online has a chart for any story your data has to tell.

Check them out.

#CollaboraOnline #Charts #OpenSource

First introduced in CODE 26.04, AI Assistant in Writer is an optional feature that supports writing-oriented workflows such as text suggestions, refinements, summaries, tone adjustments, and faster drafting.

See how it works.

Collabora Office 26.04 is here, now with a more native desktop experience.

This release brings a far more native Collabora Online experience to Windows, macOS and Linux, with optional AI-assisted workflows, improved accessibility, better interoperability and the latest features from CODE 26.04.

This is an early desktop release, ready to explore, test, and help shape.

Full breakdown.

First time AI-assisted workflows have landed in CODE, and they're optional, which is how it should be.

Also in this release:
-Smarter document review in Writer
-Per-user sheet views in Calc
-Markdown support
-Interactive presenting in Impress
-Improved accessibility

Free to download and self-host.

Read the full breakdown

Formula Error Help in Collabora Online Calc makes spreadsheet errors easier to investigate and resolve, with quick access to the information and tools you need, without losing your place in the spreadsheet.

See it in action.

Screen readers help users with visual impairments interact with documents by reading content aloud.

Collabora Online includes initial screen reader support, helping reduce barriers to entry into the online document world through more accessible document editing.

See how it works.

Product names, technical terms, internal acronyms… spellcheck doesn’t always get it.

With Custom Dictionaries in Collabora Online, you can define your own terms so they’re recognised automatically across your setup.

Check it out.

Thanks to the hard work of our developers, it’s now simpler to ensure seamless collaborative editing across your pods. Whether you're testing locally with Minikube or preparing for a larger deployment, our latest guide covers the essential Helm configurations and HAProxy settings you need to get started.

Check out the full walkthrough and join the conversation.

A huge thank you to everyone who joined us in Hamburg (and to those who tuned in online). All main track sessions were live-streamed and are now available to watch on demand, or get a 1 minute overview of each day with our short recaps.

🎥 Watch the online streams.

💥 Watch the short recaps.

In our latest interview, we sit down with Ezinne Nnamani, a Software Engineer at Collabora who is passionate about "learning in public" and bridging the gap between complex code and user experience.

From her favourite features to her philosophy on global collaboration, Ezinne shares her experience of being part of building the future of open-source software.

Check out the conversation.

Server-side Settings in Collabora Online help organisations define shared configurations — from Autotext and Custom Dictionaries to Interface and Document Settings — so every user starts with a consistent, ready-to-use environment.

Watch how it works.

Explore how Collabora Office for Mobile brings full document fidelity and a unified experience across desktop, browser, and mobile.

Dive into the full article.

Our blog breaks down Interoperability, explaining how we "translate" formats like ODF and OOXML to keep your data safe and your layouts perfect.

Read more.

Germany isn’t just talking about digital sovereignty, it’s building it.

☑️ 80,000+ users in a pilot
☑️ 8 vendors, one platform
☑️ Federal rollout planned for 2027

In this episode of the Open Matters Podcast, Richard Brock is joined by Victor Moster and Thorsten Behrens (Collabora Productivity) to explore what it really takes to build a sovereign digital workplace with open source.

Listen now.

Collabora Online Easy Hacks are designed for exactly that: small, approachable issues to help you make your first contribution.

Find an issue, explore the code, and send your first pull request.

The community is here to support you every step of the way. 💜

Get started today!

Server-side Settings in Collabora Online let you define shared defaults — from Autotext to document behaviour — so teams start with the right setup every time.

Watch how it works.

In an exciting episode of the ongoing saga of The Document Foundation (TDF), their Membership Committee has decided that in order to grow the community and accelerate its mission – it would be fitting to eject from membership all Collabora staff and partners.

This is indeed April the 1st, but sadly this really is a summary of where we are now at; a double April Fool as it were.

Read the blog.