Rutba Office · free and open source
Thirteen office apps in one free download, and only Talk asks you to sign in.
Mail, calendar, contacts, documents, spreadsheets, slides, PDF, pictures, image editing, video, a recorder that can stream live, messages and calls, and databases, on a desktop engine we wrote ourselves. It reads the Microsoft formats, old .doc, .xls and .ppt files included, and the Outlook archives you already have. It works with the network switched off, only Talk asks for an account (a free Rutba one), and it has had a release every few days since the first.
Watch
Rutba Office in a short film
The apps, what they open and how they work without an account or a connection.

The launcher, photographed from the real application by its own build.
What is in it
A whole suite, not a document editor
One installer, thirteen applications, no per-app licence. Every picture below is the real application, captured by its own build on sample files.

Documents
Pages as you type, and everything Word puts on them

Worksheets
Real formulas, real recalculation

Presentations
Slides that survive the round trip

Every account, every archive, one inbox

Read, comment, fill, sign, redact and put pages in order

Video
A player, an editor and introduction videos, without a render farm

Recorder
Record your screen, camera and voice as one video, and stream it live

Data Files
Tables of records, related to each other, in one file

Talk
Messages and calls with your contacts

Image
Crop, correct, select, paint, layer, export

Pictures
A viewer that stays quick on a folder of thousands

Calendar
Meetings, kept on your own machine

Contacts
The address book Mail completes from
What each app opens, writes and does is on office.rutba.io/apps, and every feature picture is in the tour. Every template has a guide of its own on office.rutba.io/templates, and so does each of Data Files’ twenty-five sample businesses.
The obvious question
Why would a business-software company give this away?
The engine already existed
Rutba Workspace needed to read and write .docx and .xlsx without damaging them, so that engine got built. A desktop suite is a better use of it than a drawer.
Every file it opens is a test
A format engine is only as good as the number of real documents it has met. Thousands of people opening their own awkward spreadsheets in it is worth more to us than a licence fee for the desktop half.
Published, so it can be checked
Under the AGPL, with a commercial licence for anyone embedding it. Software that claims to send nothing anywhere should be readable by the person deciding whether to believe that.
Came for the free suite and run a business? Mail at your own domain, files, documents, chat, meetings and phone, each logging back to the customer or order it concerns, are what Rutba sells.
See Rutba WorkspaceNothing on this page needs an account, and the desktop suite has none to offer. Downloads, source and the issue tracker are all on office.rutba.io.