Cloudflare D1 vs Supabase: Which is Better in 2026?
Choosing between Cloudflare D1 and Supabase comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: Supabase wins this matchup. Our overall Data & Databases pick is PostgreSQL. Our free Data & Databases pick is PostgreSQL. Pick Cloudflare D1 if you need a free tier to start with.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Cloudflare D1
Serverless SQL database at the edge
Best for you if:
- • You want generous free tier with 5 million reads/day and 5 GB storage
- • You want no egress charges unlike most cloud databases
Supabase
Open source Firebase alternative
Best for you if:
- • You want full PostgreSQL access
- • You want generous free tier
| At a Glance | Cloudflare D1 | Supabase |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Data & Databases | Data & Databases |
Rating | 4.5/5 | 4.6/5 |
Free plan | Yes | Yes |
Choose Cloudflare D1 or Supabase?
Choose Cloudflare D1 if
Serverless SQL database at the edge
- You want generous free tier with 5 million reads/day and 5 GB storage
- You want no egress charges unlike most cloud databases
Choose Supabase if
Open source Firebase alternative
- You want full PostgreSQL access
- You want generous free tier
| Feature | Cloudflare D1 | Supabase |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| User Rating | ★4.5/5 696 reviews | ★4.6/5 233 reviews |
| Categories | Data & DatabasesServerless | Data & DatabasesAPI Tools |
In-Depth Analysis
Cloudflare D1
Serverless SQL database at the edge
D1 is usage-priced, not a $29 database SKU.
Watch out
Workers CPU that runs the query is billed on Workers pricing, on top of D1 rows (official FAQ).
Strengths
- +Generous free tier with 5 million reads/day and 5 GB storage
- +No egress charges unlike most cloud databases
- +Scale-to-zero means no cost when inactive
- +Time Travel provides built-in disaster recovery
- +Seamless integration with Cloudflare Workers ecosystem
Weaknesses
- -10 GB maximum per individual database
- -SQLite compatibility means no full PostgreSQL/MySQL feature set
- -Tightly coupled to Cloudflare Workers ecosystem
- -Not suited for single large monolithic databases
- -Relatively new product with evolving feature set
Key features
Supabase
Open source Firebase alternative
Supabase is the open-source Firebase alternative that developers actually want to use, Postgres database, authentication, storage, edge functions, and real-time subscriptions in one platform.
Watch out
Free projects pause after 7 days of inactivity: your app goes offline until someone visits it again. Not suitable for any production use, only for development and demos
Strengths
- +Full PostgreSQL access
- +Generous free tier
- +Open-source and self-hostable
- +Great developer experience
Weaknesses
- -Projects pause on free tier
- -Smaller ecosystem than Firebase
- -Less mature than alternatives
Key features
Pricing: Cloudflare D1 vs Supabase
| Plan | Cloudflare D1 | Supabase |
|---|---|---|
| Tier 1 | Free Workers Free | $0 Free |
| Tier 2 | Usage Workers Paid | $25 Pro |
| Tier 3 | N/A | $599 Team |
| Tier 4 | N/A | Custom Enterprise |
Pricing verified from each vendor's public pricing page. Compare in detail on Cloudflare D1 pricing and Supabase pricing.
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: Cloudflare D1
Want the highest-rated option?
Cloudflare D1: 4.5/5 (696 reviews). Supabase: 4.6/5 (233 reviews).
Go with: Supabase
Value user reviews?
Cloudflare D1: 696 reviews (4.5/5). Supabase: 233 reviews (4.6/5).
Go with: Cloudflare D1
3 Questions to Help You Decide
What's your budget?
Both are freemium. Pricing won't help you decide here.
What's your use case?
Both are data & databases tools. Compare their specific features to decide.
How important are ratings?
Supabase is rated higher: 4.6/5 vs 4.5/5.
Key Takeaways
Supabase
- Higher user rating: 4.6/5 vs 4.5/5
- Free tier available
- Our pick for this comparison
Cloudflare D1
- Larger review base (696 reviews)
The Bottom Line
Supabase wins this matchup. Our overall Data & Databases pick is PostgreSQL. Our free Data & Databases pick is PostgreSQL.
Frequently Asked Questions
Is Cloudflare D1 or Supabase better?
Supabase is rated in our evaluation. Both are freemium.
What are Cloudflare D1 and Supabase used for?
Cloudflare D1: Serverless SQL database at the edge. Supabase: Open source Firebase alternative.
What does Cloudflare D1 cost vs Supabase?
Cloudflare D1 is freemium (free tier + paid plans). Supabase is freemium (free tier + paid plans). Visit their websites for detailed pricing.