Detailed technical benchmark and comparison between Firebase Cloud Storage API and Supabase Storage API. Analyze pricing structures, verified webhooks, sandbox testing, authentication, and compliance for teams building in Nigeria.
Store & serve files for mobile and web apps via Firebase
Manage files with database-backed access control & image transforms
Firebase Cloud Storage API is best for mobile & web apps (especially Flutter/React Native)
Supabase Storage API is best for supabase-based projects needing file storage with database-integrated access control and image transformations
| Highlight | F Firebase Cloud Storage API | S Supabase Storage API |
|---|---|---|
| Authentication | Firebase Auth | Supabase API Key / JWT (Row-level Security) |
| Rate Limit | Spark (free): 1GB storage, 10GB/month download. Blaze: scales with GCS quotas. | Based on plan bandwidth limits |
| Sandbox Mode | ✓ Available | ✓ Available |
| Webhooks | Not verified yet | Not verified yet |
| API Services | Large File (100MB+) Support | File & Object StorageCRUD Operations (Upload / Read / Update / Delete)S3-Compatible APILarge File (100MB+) Support |
| Supported Regions |
| Fee Component | F Firebase Cloud Storage API | S Supabase Storage API |
|---|---|---|
| Free Tier / Trial Credits | Free tier:5GB/month, then $0.18/GB | Free:1GB storage + 2GB bandwidth |
| Rates & Additional Terms | Standard tier rates apply | Pro from $25/month with 100GB storage |
| Feature / Capability | F Firebase Cloud Storage API | S Supabase Storage API |
|---|---|---|
| File & Object Storage | ✗ | ✓ |
| CRUD Operations (Upload / Read / Update / Delete) | ✗ | ✓ |
| Private Access Control & Permissions | ✗ | ✗ |
| File Versioning & History | ✗ | ✗ |
| S3-Compatible API | ✗ | ✓ |
| Large File (100MB+) Support | ✓ | ✓ |
| CDN & Global Edge Delivery | ✗ | ✓ |
| Free Tier Available | ✗ | ✗ |
| Sandbox Testing Environment | ✓ | ✓ |
| API Key / Token Authentication | ✓ | ✓ |
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