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File & conversion tools / Compare

Backblaze B2 vs Koofr

Both do 1 of the same file & conversion tools task. Below is what each says about its own limits and pricing, and how each ranks on signals we can measure or quote.

Disclosure: agathox makes some of the tools listed here. They are labelled and scored by the same method as every other tool.

A

Backblaze B2

Neoclouds, GenAI devs, and AI-forward builders rely on B2 Cloud Storage for high-throughput, data-heavy workloads. S3-compatible object storage without limits.

Signals score: 3.9 / 5 · not a hands-on test

Visit www.backblaze.com

B

Koofr

Koofr is a safe and reliable European cloud storage that respects your privacy. Save and access files from any device.

Signals score: 3.9 / 5 · not a hands-on test

Visit koofr.eu

Pricing, limits and privacy

Free tier
A: The first 10 GB of storage is always free. Free egress up to 3x average monthly storage; overage is $0.01 per GB. Class A, B and C API calls are free for pay-as-you-go customers.
B: Free plan gives 10 GB, free forever, and no credit card is needed to sign up.
Paid plan
A: B2 Cloud Storage starts at $6.95 per TB per month, billed monthly. Annual commitments of 1 to 5 years are billed upfront. B2 Overdrive starts at $15 per TB per month and needs a multi-petabyte commitment. Currency is shown as $ only.
B: Monthly prices in EUR including 22% VAT: 10 GB 0.5, 25 GB 1, 100 GB 2, 250 GB 4, 500 GB 7, 1 TB 10, 2.5 TB 20, 5 TB 35. 10 TB and up not listed. Only yearly subscriptions are currently possible. All paid plans add 10 GB free.
Signup
A: Not stated. The page has Start Free and Sign In buttons.
B: Not stated. The free plan is offered through account signup.
Watermark
A: Not applicable.
B: Not applicable.
Where files go
A: Files you store are uploaded to Backblaze. The privacy notice covers account information, not stored file contents, and does not say how long files are kept.
B: Servers are in Germany, in the EU. Files are encrypted at rest and in transit. Account data is deleted within 30 days of a deletion request, activity logs are kept for three months. No retention period for individual deleted files is stated.

From each tool's own pages, checked 2026-11-01. Prices and limits change; check the tool before you rely on them. Sources are listed on each tool's page.

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Neither tool has been hands-on tested on these tasks yet, and we do not guess. Open a task to see both ranked with every other tool.

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