Backblaze B2 vs Storj (2026): which should you pick?

Pick Backblaze B2 if

• Fits if you have developers or an IT person to point backup tools at an S3 bucket
• Works for teams storing terabytes of backups that rarely get read back

Look elsewhere if

• Skip it if you want a folder that syncs to your laptop, as there is no consumer sync app
• Tight if you read a lot back: egress beyond 3 times your stored data costs $0.01 per GB
• Watch out: API calls past the first 2,500 a day cost $0.004 per 10,000 on Class D transactions
• Watch out: B2 Overdrive is $15 per TB and up, with a multi-petabyte commitment bought by quote

Pick Storj if

• Fits if you're a developer who wants S3 storage and is fine with a trial first
• Works for teams that store a lot and read it back rarely

Look elsewhere if

• Skip it if you want a drive that syncs, as this is object storage
• Watch out: a $5 monthly minimum applies after the trial and is a floor, not a credit
• Pricey if you read data often: egress is another $7 per TB
• Watch out: Standard bills a 30-day minimum retention, and Object Mount licenses are $29 or $39 a month

Backblaze B2

• Egress beyond 3x the average monthly data stored costs $0.01 per GB, except to partner CDNs and compute services.
• Class D API transactions cost $0.004 per 10,000 calls after the first 2,500 each day.
• B2 Overdrive needs a multi-petabyte commitment and is sold by quote.
• It is a storage service for developers and IT teams; the page shows no consumer sync app.

Storj

• A $5 monthly minimum fee applies after the trial; it is a floor, not a usage credit, and USDC payers are exempt.
• Standard bills a 30-day minimum retention and rounds objects under 50 KB up to 50 KB.
• Paid Object Mount licenses are $29 per license per month (500 GB of Storj storage included) or $39 for use with other S3 storage.
• Standard and Advanced are bought through sales contact on the pricing page.

Backblaze B2

S3-compatible object storage

The page describes S3-compatible storage for active archiving, backup and recovery, media and application workloads.

No minimums on files or duration

There are no minimum file size or storage duration fees, and class A, B and C API calls are free on pay as you go.

Free egress allowances

Egress is free up to 3x the average data stored, and free to partner CDNs and compute services such as Cloudflare, Fastly and bunny.net.

Capacity commitments

Customers can commit to a set amount of storage for 1 to 5 years, billed for the full term at contract start with a locked rate.

Storj

Distributed storage

Data is stored across tens of thousands of locations and designed for 11 nines of durability using erasure coding.

S3-compatible access

The pricing page calls it a drop-in replacement for AWS S3 that works with S3-compatible apps; segment and API fees are not charged on new tiers.

Object Mount

A desktop client for Mac, Windows and Linux that streams cloud files as if they were local, working with Storj or any S3 storage.

Regional option

The Advanced tier keeps data in U.S. SOC 2 Type 2 compliant data centers for buyers who need to control where data lives.

Backblaze B2

• Backblaze B2$6.95

  per TB / month, billed monthly on byte-hours stored

  Pay as you go, or commit to capacity for 1 to 5 years with discounts. Free egress up to 3x stored data, then $0.01/GB.

• B2 Overdrive$15

  per TB / month and up

  For AI, HPC and research workloads: dedicated vaults, unlimited free egress and a multi-petabyte commitment. Sold by quote.

Storj

• Free trial$0

  for 30 days

  S3-compatible storage with 25 GB for 30 days and 2 free Object Mount licenses. No credit card needed.

• Standard$7

  per TB / month stored, plus $7 per TB egress

  Globally distributed storage. 30-day minimum retention, 50 KB minimum object size and a $5 monthly minimum fee.

• Advanced$10

  per TB / month stored, plus $7 per TB egress

  Storage kept in U.S. SOC 2 Type 2 compliant data centers. $5 monthly minimum fee.

Backblaze B2

• Other savings

  Discounts for volume and term commitments

  The pricing page says discounts are available when you commit to volume and a 1 to 5 year term; the amounts are not published.

Storj

No public discounts listed.