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Best Backblaze B2 Alternatives (2026)

Backblaze B2 is a free storage tool (object storage). Low-cost S3-compatible storage with free egress via Cloudflare bandwidth alliance. We found 12 alternatives worth considering.

Quick verdict

Why look for Backblaze B2 alternatives?

  • Feature gaps — while Backblaze B2 is free, paid alternatives may offer more polish or support.
  • Workflow fit — every team is different; the best tool depends on your stack and preferences.

Top 12 Alternatives to Backblaze B2

Supabase Storage logo
Supabase Storagefree

S3-compatible object storage with RLS policies image transforms and CDN delivery

Both Object Storage storage toolsShared: storage, object storage
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Cloudflare R2 logo
Cloudflare R2free

S3-compatible object storage with zero egress fees and global distribution

Both Object Storage storage toolsShared: storage, object storage
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AWS S3 logo
AWS S3free

Industry-standard object storage with 99.999999999% durability and lifecycle policies

Both Object Storage storage toolsShared: storage, object storage
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Vercel Blob logo
Vercel Blobfree

Serverless file storage integrated into Vercel platform with simple SDK

Both Object Storage storage toolsShared: storage, object storage
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UploadThing logo
UploadThingfree

Type-safe file upload library for Next.js Astro and SvelteKit with built-in CDN

Both in StorageShared: storage
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ValidatorAI logo
ValidatorAIfree

AI startup idea validator used by 200K+ people

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IdeaProof logo
IdeaProoffree

AI market analysis in ~120 seconds for entrepreneurs

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Clerk logo
Clerkfree

Drop-in authentication with pre-built UI components optimized for React and Next.js

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Supabase Auth logo
Supabase Authfree

PostgreSQL-native auth with row-level security and social/email/phone login

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Firebase Auth logo
Firebase Authfree

Google auth service with email phone social and anonymous sign-in methods

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Kinde logo
Kindefree

All-in-one auth with built-in orgs RBAC feature flags and billing hooks for SaaS

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WorkOS logo
WorkOSfree

Enterprise-grade auth with SSO SCIM MFA and AuthKit UI components

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Alternatives by type

File Upload alternatives

UploadThing logo
UploadThing

Web-Based alternatives

ValidatorAI logo
ValidatorAI
IdeaProof logo
IdeaProof

Auth Provider alternatives

Clerk logo
Clerk
Supabase Auth logo
Supabase Auth
Firebase Auth logo
Firebase Auth
Kinde logo
Kinde
WorkOS logo
WorkOS

Frequently asked questions

What are the best alternatives to Backblaze B2?
The top alternatives to Backblaze B2 include Supabase Storage, Cloudflare R2, AWS S3. All are storage tools that support object storage workflows.
Is there a free alternative to Backblaze B2?
Yes. Supabase Storage is available for free. S3-compatible object storage with RLS policies image transforms and CDN delivery
Is Supabase Storage better than Backblaze B2?
Supabase Storage and Backblaze B2 serve similar purposes as storage tools. Supabase Storage: S3-compatible object storage with RLS policies image transforms and CDN delivery Backblaze B2: Low-cost S3-compatible storage with free egress via Cloudflare bandwidth alliance The best choice depends on your workflow and requirements.
How many alternatives to Backblaze B2 are there?
We track 12 alternatives to Backblaze B2 across categories including Storage, Idea Validation, Auth.

Related alternatives pages

Alternatives to Supabase StorageAlternatives to Cloudflare R2Alternatives to AWS S3Alternatives to UploadThingAlternatives to Vercel Blob

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