Free Backblaze B2 alternatives: 3 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rank

3 of the 6 Backblaze B2 alternatives we track can be used for free (free, open source, or with a free plan). Cloudflare R2, Amazon S3 and Google Cloud Storage rank highest, with facts last verified Nov 8, 2026.

Quick comparison

#	App	Pricing	Verified price	Open source	Platforms	Verified facts	Score
1	Cloudflare R2	Free plan + paid	$0.015 per GB-month	No	Web	6 of 6	64.8
2	Amazon S3	Free plan + paid	Up to $200 in credits for new AWS customers	No	Web	7 of 7	61.8
3	Google Cloud Storage	Free plan + paid	—	No	Web	6 of 6	59.4

1. Cloudflare R2Top pick
Best for: Developers serving files to the web who want to avoid egress fees, especially on Cloudflare Workers
Free plan + paidWeb
64.8
score / 100
Why switch from Backblaze B2
Unlimited free egress and a free monthly tier, a better fit for data served heavily to the web.
Pros
No egress charges for any storage class
Free tier of 10 GB storage and millions of operations a month
Native Workers API alongside S3 compatibility
Built-in tools to migrate data from other providers
Cons
Write operations cost more per million than on some rivals
Infrequent Access class has retrieval fees and no free tier
Fewer storage tiers and data management features than Amazon S3
Visit Cloudflare R2 Compare with Backblaze B2 Details and reviews
How this score is calculated
Editorial fit ×0.387
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Cloudflare R2 a good Backblaze B2 alternative?
Verified facts
6 of 6 verified
Egress fees
None
Checked Nov 8, 2026developers.cloudflare.com(opens source in a new tab)
Standard storage price
$0.015 per GB-month
Checked Nov 8, 2026developers.cloudflare.com(opens source in a new tab)
Free tier
10 GB storage per month
Checked Nov 8, 2026developers.cloudflare.com(opens source in a new tab)
S3 compatible
Yes
Checked Nov 8, 2026cloudflare.com(opens source in a new tab)
Infrequent Access storage
$0.01 per GB-month
Checked Nov 8, 2026developers.cloudflare.com(opens source in a new tab)
Class A operations
$4.50 per million requests (Standard)
Checked Nov 8, 2026developers.cloudflare.com(opens source in a new tab)
2. Amazon S3
Best for: Teams building on AWS that need archive tiers, lifecycle rules and deep service integrations
Free plan + paidWeb
61.8
score / 100
Why switch from Backblaze B2
More storage classes, regions and AWS service integrations, at a higher price per gigabyte.
Pros
Many storage classes, including automatic tiering and Glacier archives
Integrates with nearly every AWS service
Designed for 11 nines of durability
Available in AWS regions worldwide
Cons
Charges for data transfer out and per request, which makes bills hard to predict
Pricing tables are complex across classes and regions
More expensive per gigabyte than budget S3-compatible providers
Visit Amazon S3 Compare with Backblaze B2 Details and reviews
How this score is calculated
Editorial fit ×0.377
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Amazon S3 a good Backblaze B2 alternative?
Verified facts
7 of 7 verified
Durability
99.999999999% (11 nines)
Checked Nov 1, 2026aws.amazon.com(opens source in a new tab)
Automatic tiering
S3 Intelligent-Tiering
Checked Nov 8, 2026aws.amazon.com(opens source in a new tab)
Archive storage
S3 Glacier classes
Checked Nov 1, 2026aws.amazon.com(opens source in a new tab)
Storage classes
Standard, Intelligent-Tiering, Infrequent Access, Express One Zone, Glacier
Checked Nov 8, 2026aws.amazon.com(opens source in a new tab)
Glacier Deep Archive
From $0.00099 per GB a month
Checked Nov 8, 2026aws.amazon.com(opens source in a new tab)
Intelligent-Tiering Deep Archive
From $1 per TB a month
Checked Nov 8, 2026aws.amazon.com(opens source in a new tab)
Free Tier
Up to $200 in credits for new AWS customers
Checked Nov 8, 2026aws.amazon.com(opens source in a new tab)
3. Google Cloud Storage
Best for: Teams on Google Cloud that need durable object storage close to their compute and analytics.
Free plan + paidWeb
59.4
score / 100
Why switch from Backblaze B2
Google's object store, with storage classes and tight links to BigQuery and other Google Cloud services.
Pros
Four storage classes with automatic lifecycle moves
Small monthly free allowance plus starting credits
Works directly with BigQuery and other Google Cloud services
Regional, dual-region and multi-region bucket options
Cons
Outbound data transfer is billed, unlike Cloudflare R2
Colder classes carry minimum storage durations
Pricing has many line items and is hard to predict
Visit Google Cloud Storage Compare with Backblaze B2 Details and reviews
How this score is calculated
Editorial fit ×0.369
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Google Cloud Storage a good Backblaze B2 alternative?
Verified facts
6 of 6 verified
Free tier
5 GiB Standard storage per month
Checked Nov 8, 2026cloud.google.com(opens source in a new tab)
New customer credit
$300 in free credits
Checked Nov 8, 2026cloud.google.com(opens source in a new tab)
Storage classes
Standard, Nearline, Coldline, Archive
Checked Nov 8, 2026cloud.google.com(opens source in a new tab)
Minimum duration
Applies to Nearline, Coldline and Archive
Checked Nov 8, 2026cloud.google.com(opens source in a new tab)
Dual-region Standard storage
$0.022 per GB/month for each region SKU (Iowa + Oregon)
Checked Nov 8, 2026cloud.google.com(opens source in a new tab)
Free plan
Yes, 5 GB-months of Standard storage
Checked Nov 8, 2026cloud.google.com(opens source in a new tab)

Quick comparison

1. Cloudflare R2Top pick

Pros

Cons

Verified facts

2. Amazon S3

Pros

Cons

Verified facts

3. Google Cloud Storage

Pros

Cons

Verified facts