Alternatives to: Backblaze B2

BorgBackup is a deduplicating backup program with compression and authenticated encryption for efficient and secure data backups.

Clever Cloud Cellar: A performant, secure, and easy-to-use object storage service compatible with Amazon S3.

OVHcloud Object Storage is a secure, scalable, and cost-effective S3-compatible storage solution with high availability and transparent pricing.

Scaleway Object Storage is a secure, highly available, and cost-effective object storage service compliant with Amazon S3, designed for high performance and European data sovereignty.

Tebi is a high-speed, highly reliable, geo-distributed object storage solution with S3 compatibility and a free tier.