1 Best Open-Source Alternatives to iCloud Drive in 2026
By Noahlast updated pricing verified
All 5 iCloud Drive alternatives
Compared: open-source alternatives to iCloud Drive
| Alternative | Best for | Standout | Biggest weakness | Learning curve | Price |
|---|---|---|---|---|---|
| iCloud Drivereference | Apple ecosystem users who want files, photos, and backups to sync automatically across iPhone, iPad, and Mac without manual transfers | Deep native integration into Finder and Files means iCloud Drive behaves like a local folder rather than a separate app, with no explicit upload/download step for everyday use. | The 5GB free tier is shared across Drive, Photos, and device Backup, so it fills up almost immediately for anyone backing up an iPhone, pushing most users toward a paid iCloud+ plan; there is also no dedicated Android app, only browser access via icloud.com. | Low | Free tier · paid from $0.99/mo |
| Proton Drive | privacy-focused individuals and small teams who want end-to-end encrypted cloud storage with a genuinely usable free tier and open-source, independently-audited clients | Files are end-to-end encrypted before upload — Proton itself cannot read them — and the client source code (GPL-3.0) is public on GitHub for independent review. | End-to-end encryption means there is no way for Proton to recover a lost password or restore access to encrypted files without a saved recovery kit; the free tier's 5 GB is modest, and getting the best per-dollar value requires bundling into the pricier $12.99/month Proton Unlimited plan rather than buying Drive storage alone. | Low | Free tier · paid from $4.99/mo |
iCloud Drive
Proton Drive1.Proton Drive — best iCloud Drive alternative for privacy-focused individuals and small teams who want end-to-end encrypted cloud storage with a genuinely usable free tier and open-source, independently-audited clients
Proton Drive is the best iCloud Drive alternative for privacy-focused individuals who want end-to-end encrypted storage with client source code published on GitHub under GPL-3.0. Files are encrypted on-device before upload, so Proton itself cannot read them even if compelled to, a stronger privacy guarantee than iCloud Drive's closed-source clients, and Proton Drive's free tier matches iCloud Drive's 5GB exactly while including Proton Docs and Proton Sheets for encrypted collaborative editing. Drive Plus then costs $4.99/month for 200GB, more than iCloud+'s $2.99/month 200GB tier, though Proton Drive's price includes true end-to-end encryption and open-source, independently audited clients that iCloud Drive doesn't offer. Proton is based in Switzerland, subject to strict Swiss privacy law rather than US data requests, and reports over 100 million users across its full product suite. iCloud Drive remains the better choice for anyone who wants deep native OS integration or straightforward account recovery: Proton Drive's end-to-end encryption means a lost password with no saved recovery kit permanently locks a user out of their files, something iCloud Drive's standard Apple ID recovery process avoids, and Proton Drive has no external rating recorded in our listing data.
Compared to iCloud Drive: true end-to-end encryption Proton itself cannot decrypt, even under legal compulsion, open-source, independently audited clients (GPL-3.0) published on GitHub, Swiss jurisdiction, subject to strict Swiss privacy law rather than US data requests
Wins:True end-to-end encryption means Proton itself cannot decrypt stored files, even under legal compulsion, unlike iCloud Drive's closed-source clients · Open-source, independently audited clients (GPL-3.0) published on GitHub · Swiss jurisdiction, subject to strict Swiss privacy law rather than US data requests, and reports over 100 million users across its product suite
Loses:Drive Plus costs $4.99/month for 200GB, more than iCloud+'s $2.99/month 200GB tier · End-to-end encryption means a lost password with no saved recovery kit permanently locks a user out of their files, unlike iCloud Drive's standard Apple ID account recovery · No external rating recorded in this comparison, and no deep native OS integration comparable to iCloud Drive's Finder/Files-level experience
Pros
- Files are end-to-end encrypted client-side, so Proton cannot read stored content.
- Client source code is open source (GPL-3.0) and independently audited.
- 5 GB free tier is more generous than most end-to-end encrypted competitors.
- Based in Switzerland, subject to strict Swiss privacy law rather than US or EU data requests.
Cons
- Lost passwords can't be recovered by Proton for end-to-end encrypted content without a saved recovery kit.
- Free tier storage (5 GB) is modest compared to Google Drive's 15 GB free tier.
- Best value per dollar requires the pricier Proton Unlimited bundle rather than a Drive-only plan.
Pricing: Free tier · paid from $4.99/mo — $4.99/month Drive Plus (200GB) vs iCloud+'s $2.99/month 200GB tier (verified undefined NaN, NaN)