Best OneDrive alternatives in 2026

OneDrive is Microsoft's cloud storage integrated deeply with Windows and Microsoft 365. Files sync seamlessly across devices with real-time collaboration on Office documents. Personal Vault adds extra security for sensitive files.

Here are the real cost and limitation gotchas that push teams to look elsewhere:

• • The 5GB free tier is far below Google Drive (15GB) and iCloud (5GB with better mobile integration). You will outgrow it quickly if syncing photos or documents.
• • OneDrive Personal Vault (enhanced-security folder) is limited to 3 files on the free plan. Upgrading to any paid plan unlocks unlimited vault storage.
• • File size limit is 250GB per file, which is generous. But sync issues can occur with files over 10GB, especially on slower connections, there is no built-in resume for interrupted uploads on the desktop client.
• • OneDrive for Business storage cannot be expanded per-user on standard Microsoft 365 Business plans. The 1TB limit is hard, you must use SharePoint for pooled team storage or upgrade to Enterprise plans for 5TB/user.

The 5 direct alternatives below cover the same core job (cloud storage) with different trade-offs. The 3 tools marked "Same category as OneDrive" fit the category but replace OneDrive less directly.