Amazon Simple Storage Service (Amazon S3) is an object storage service that offers industry-leading scalability, data availability, security, and performance.
Pay as you go pricing based on usage
Best Firebase Storage Alternatives ranked by AI · updated Aug 2026
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Firebase Storage provides managed file storage for mobile and web applications using Google Cloud Storage infrastructure. It is designed for Firebase developers who need authenticated uploads, downloads, and security rules integrated with Firebase Authentication.
Developer: Google
Price: No-cost quota; pay-as-you-go with Blaze plan
🎯 firebase.google.com/products/storage
Top 6 Firebase Storage alternatives
Minio is an open-source, high-performance object storage solution that is compatible with Amazon S3.
Supabase Storage is an object storage service for applications that need to upload, serve, and manage files with access policies. It integrates...
Pros
- Integrates directly with Supabase Auth, database metadata, and row-level security
- Provides browser-friendly uploads, transformations, caching, and signed URLs
- Simpler application setup than configuring a standalone object storage provider
Cons
- Less globally configurable than Amazon S3 for complex enterprise architectures
- Storage and bandwidth limits depend on the broader Supabase plan
- Advanced media processing is less extensive than Cloudinary
Free tier; Pro from $25/mo
4
Cloudflare R2
Cloudflare
Cloudflare R2 is an S3-compatible object storage service for web assets, application data, backups, and AI or analytics workloads. It is aimed...
Pros
- No egress fees are advantageous for frequently accessed data
- S3-compatible API eases migration from IONOS and other providers
- Integrates with Cloudflare Workers, CDN, and event-driven services
Cons
- Storage price is higher than IONOS's base rate
- Not all advanced S3 behaviors and storage classes are available
- Cloudflare-specific workflows can increase platform dependence
From $0.015/GB-month; free egress
5
Backblaze B2
Backblaze
Backblaze B2 is low-cost cloud object storage for backups, media, archives, and application files. It serves developers and businesses seeking S3-compatible storage...
Pros
- Lower storage pricing than Supabase Storage and many general-purpose clouds
- Offers S3-compatible APIs and native Backblaze APIs
- Straightforward fit for backups, archives, and large media libraries
Cons
- Fewer built-in authentication and database integrations than Supabase Storage
- Application upload policies and metadata workflows need separate implementation
- Global edge delivery requires a CDN or partner integration
From $0.006/GB-month
6
Appwrite Storage
Appwrite
Appwrite Storage is a file storage service within Appwrite's backend platform for web, mobile, and server applications. It provides buckets, permissions, previews,...
Pros
- Combines file permissions, authentication, databases, and storage in one backend platform
- Includes image previews and transformations for common application workflows
- Self-hosting provides more deployment control than Supabase Storage
Cons
- Smaller ecosystem and community than Firebase or Amazon S3
- Cloud limits and pricing vary between Appwrite Cloud and self-hosted deployments
- Requires more operational work when self-hosted
Free self-hosted; cloud free tier, Pro from $25/mo
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