ONLYOFFICE, the open-source office suite that competes with Microsoft 365 and Google Workspace, has released version 10.0 with an AI assistant inside every editor it makes. Organisations that run the software on their own servers can connect it to any AI model they choose, including one that runs entirely on their own machines, so their documents never have to leave the building.
The update, announced from Singapore on 10 October, covers the online, desktop and mobile versions of the suite. ONLYOFFICE puts its user count above 21M worldwide and says the release brings around 50 new features and more than 1,000 fixes.
AI On The Customer’s Terms
Writers, analysts and presenters now find a dedicated AI tab in the document, spreadsheet, presentation and PDF editors, with a chat window that can draft, summarise, translate, tidy and format whatever is open on screen. ONLYOFFICE gives examples aimed at office work: a lawyer summarising a contract, an analyst building a forecast or a pivot table (a spreadsheet summary that groups and totals rows), and a manager turning rough notes into a slide deck.
Users can start from ready-made prompts, save the ones they reuse, or set up custom AI actions and assistants for repeated jobs. Each organisation picks its models by quality, speed and cost, and sets the rules on how staff use them.
People on ONLYOFFICE’s cloud service switch AI on through OpenRouter, a service that gives access to many AI providers through one connection. Companies that install ONLYOFFICE on their own servers can go further and connect any model at all, including open models running on their own hardware, and the company says sensitive data then stays inside their own systems. That freedom over the model is where ONLYOFFICE parts company with the large suites.
It matters most to the buyers who chose ONLYOFFICE in the first place: governments, schools and firms that host their own office software because they cannot send files to an outside cloud. Microsoft and Google run their assistants in their own clouds, and Google has gone as far as giving Gemini agents their own company email accounts inside Workspace.
Agents Arrive As Free Apps
Alongside the editors, ONLYOFFICE has launched four free add-on apps under the same open-source licence, the AGPL v3, which lets anyone use and change the code as long as they share their changes. The most ambitious is AI Agents, which automates tasks across a workspace, searches a company’s files, builds a personal knowledge base and works through problems in longer steps.
The agents connect to other software through MCP servers. MCP, or Model Context Protocol, is a common standard that lets an AI model talk to outside tools and data, and Morning Tick has looked at how companies are putting MCP to work. ONLYOFFICE first added an AI agent to its editors in an update in 2025; version 10.0 turns that into a standalone app.
The other three apps cover forms that collect data and analyse the answers, file storage with access controls, and “rooms” for secure collaboration, including virtual data rooms where companies share confidential papers during deals or audits. The apps come switched on by default in the cloud, and server customers install all four with a single command.
Fixes Beyond The AI
Most of the release goes into the editors people already use. The PDF editor can now strip hidden metadata such as author names from a file, spot tables automatically and save a signature for reuse. In documents, co-authors see each other’s cursors as they type, and right-to-left languages such as Arabic and Hebrew display more reliably.
Spreadsheets run faster and offer hints while a formula is being typed, and presentations can now be exported as a GIF or a video. The suite also opens .ofd files, a document format used widely in China, and turns SVG images into shapes that can be edited. New plugins include Salesforce and the writing tools Antidote and Curly.
Outside the browser, the free Community edition of the desktop apps offers the AI tools as an optional add-on and now connects to Odoo, the open-source business software used for accounting and sales. The free iOS and Android apps gain an AI assistant with more providers, including Grok and DeepSeek, along with voice input and AI that fills in forms.
ONLYOFFICE says 10.0 also closes 35 security vulnerabilities, though the release does not describe any of them or say how serious they were. The code itself is public on ONLYOFFICE’s GitHub page, so the fixes are open for anyone to inspect.
Open Source Meets The AI Race
Version 10.0 puts ONLYOFFICE level with Microsoft and Google on the feature buyers now ask about first: an assistant that writes, summarises and analyses inside the file. It also holds on to what won the suite its customers, because the software can run on a company’s own servers and now the AI can as well. That gives organisations under strict data rules a way to use AI without changing where their documents live. ONLYOFFICE has not, however, said how many users have switched the AI on, which models they pick or what the paid AI features cost.
The agent app marks the bigger shift for an open-source project. Office software that used to store and edit files now comes with tools that search those files, act on them and link them to other systems, and ONLYOFFICE is giving those tools away under the same licence as the rest of its code. Each organisation, not the vendor, decides how far the agents reach, which sits comfortably with the self-hosted pitch the suite has made from the start.
