All your software in one window
A complete desktop that lives in a browser tab. Write, calculate, retouch and sign — then pick up exactly where you left off on any computer.
Opens and saves the files your team already sends around
- .docx
- .xlsx
- .pptx
- .csv
- .png
- .jpg
- .psd
- .md
Drafts that look finished
Styles, tables, footnotes and comments, with pixel-careful .docx import and export. Share a link instead of an attachment.
Numbers without the setup
Hundreds of formulas, charts, filters and pivots. Paste a CSV and you are analysing it in seconds.
Layers, masks, the works
A GPU-accelerated editor with brushes, adjustments and layered files. No plug-ins, no installer.
Merge, shrink, sign, send
Combine reports, compress scans, add a signature and convert pages — all in the same window as the rest of your work.
Built for keyboard people
Hit Ctrl K to launch apps, find any file by name or contents, convert units, do quick maths or ask the AI assistant. Drag a window to an edge — or hover the maximize button — to snap it into place.
Your files are yours
GDPR by design
Data is stored in the EU and US with a clear processing agreement and export on request.
No ads, no profiling
We earn from optional paid AI features, never from what is inside your documents.
Isolated apps
Every app runs in its own sandbox and only sees the files you hand it.
Why a browser desktop?
| Zotu | Installed software | |
|---|---|---|
| Ready to use | In one click | After downloads and setup |
| Works on | Any computer with a browser | The machine it is installed on |
| Updates | Always current, automatically | Manual, per device |
| Your files | Synced everywhere | Copied around by hand |
Ship your web app to every Zotu desktop
One SDK gives your app windows, the user's cloud files, key-value storage and sign-in. The developer program opens soon.