Backblaze B2 Pricing Explained (October 2026): Storage, Egress and API Costs vs. Upstash Blob
Blog post from Upstash
Backblaze B2 charges $6.95 per TB monthly for storage, with the first 10 GB free, free uploads and most API calls, and free downloads capped at three times average stored data before charging $0.01 per GB; as a result, heavily accessed application files can make egress costs dominate storage costs. The comparison argues that Upstash Blob may be less expensive for user-facing images, PDFs, and exports because it includes 1 TB of monthly downloads regardless of storage volume, though it has higher storage, read, upload, and post-allowance download rates. B2 can avoid download charges through partner CDNs such as Cloudflare, but configuring public or private access requires domain, rewrite, caching, and sometimes request-signing setup, with misconfiguration potentially exposing other public buckets through a shared host. Both services support direct browser uploads, but B2 relies on S3-compatible presigned URLs and developer-managed CORS, progress, retries, and multipart behavior, whereas Upstash Blob provides SDK tools for upload policies, signed URLs, multipart transfers, and client-side progress handling. Overall, B2 is presented as suited to inexpensive backups and archives that are rarely retrieved, while Upstash Blob is positioned for globally delivered application content with frequent downloads.
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