20 GB Free

• Mega – Generous free tier with 20 GB
  

10 GB Free

• pCloud – Optional client-side encryption
• IceDrive – 10 GB free on basic plan
• Rakuten Drive – Integrated with Rakuten services
• Mimedia – Personal media focus
• Filen – Zero‑knowledge privacy-first
  

5 GB Free

• OneDrive – Bundled with Microsoft accounts
• Proton Drive – End-to-end encrypted
• JottaCloud – Popular in Scandinavia
• Cozy Cloud – Orivacy-focused European cloud
  

3 GB Free

• NordLocker Drive – Encrypted storage and sharing

Unknown / Minimal / Niche Free Tier

• Nextcloud
• IDrive – Offers 10 GB free, but backup-focused
• InfiniCloud – Use this referral code to get 5GB extra free storage: B3MCM
• Amaryllo Cloud – Mainly IoT devices
• PlayBook