Collabora Office
Free Our pickLibreOffice engineered for phones and tablets — opens Word and Excel files offline, no account, no cloud.
Office: replace Google Docs / Sheets / Slides
5 private options, our pick first. Every download link goes straight to the source — F-Droid, the developer's GitHub releases (one tap into Obtainium), the Play listing you can install anonymously through Aurora Store, or the official site. None of these are affiliate links. Updated October 2026.
These Google Docs alternatives cover writing, spreadsheets and slides on Android without a Google account. Collabora Office opens Word and Excel files offline, CryptPad handles encrypted editing in the browser, and OnlyOffice suits people who already run Nextcloud. Proton Docs and Sheets live inside Proton Drive.
The trade-off is live collaboration. Google Docs is where many coworkers and schools already are, and private tools can't make them move. A private office setup in 2026 can replace Docs for your own files. Your own files are the easy part. Shared work may still mean sending a file instead of a link.
CryptPad
Free tierEncrypted collaborative docs in the browser — the private answer to 'edit this together right now'.
OnlyOffice
Self-hostThe most Microsoft-compatible editors; pairs beautifully with Nextcloud.
Proton Docs & Sheets
Free tierEncrypted docs and spreadsheets inside Proton Drive — the collaborative-editing piece if you're already on Proton.
How to switch from Google Docs / Sheets / Slides
- Export your files with Google Takeout, or download them one at a time from the File menu in Docs, Sheets or Slides. Choose Word, Excel or PowerPoint formats for the widest compatibility.
- Install Collabora Office on the phone and open a few of your most complex files first. Tables, comments and tracked changes are where conversion problems usually show up.
- Store the converted files in your new cloud, such as Proton Drive or Nextcloud, so they also reach your computer. Edit them there with LibreOffice or OnlyOffice when a bigger screen helps.
- For documents you write together with others, create a shared document in CryptPad or Proton Docs and send the link. CryptPad collaborators only need a web browser to join in.
- Rebuild anything that depends on Apps Script, Google Forms or Google-only spreadsheet functions. These have no direct equivalent in the private tools, so list them before you start deleting files.
- Keep the Google copies until you have opened every file you care about in the new tools at least once. Then delete them from Drive and remove the Google apps.
Office questions
Will Word and Excel files look the same in Collabora Office?
Usually close, but not always identical. Collabora Office is built on LibreOffice, which handles common Microsoft formats well. Complex layouts, unusual fonts and advanced spreadsheet features can shift. If a file must look exact for a client or school, check it where it will be read, or send a PDF as the final copy. Keep the original Word or Excel file too, so others can still edit it.
Can several people edit the same document privately?
Yes. CryptPad offers real-time collaborative documents and spreadsheets that are encrypted in the browser, so the server stores data it can't read. Proton Docs does something similar for people with Proton accounts. Self-hosted OnlyOffice or Collabora Online next to Nextcloud also works, but then you run the server and keep up with its security updates. For a quick shared note, a CryptPad pad is the lightest option.
Do I need an account to use Collabora Office on Android?
No. The Android app works with documents stored on the phone and doesn't require an account or a cloud service. You open files from local storage or from any app that hands documents over through Android's file picker. That makes it a practical offline viewer and editor for email attachments and downloads, even on a phone with no Google apps. It can also export to PDF.