Updated for 2026

Cloudflare D1vsPostgreSQL

Not sure which fits your workflow in 2026? Compare pricing, features, and trade-offs — then switch tools below to explore more options in this category.

Category
Tool A
Tool B

dev-database

Cloudflare D1

Cloudflare D1 is a native serverless SQL database first released in Alpha in May 2022 and entering GA in April 2024. It is a serverless SQLite for Workers/edge applications, emphasizing low-latency SQL close to users.

Visit Cloudflare D1

dev-database

PostgreSQL

PostgreSQL is the open-source relational database many modern stacks standardize on — powerful SQL, extensions, and a vast ecosystem.

Visit PostgreSQL

Basics

FeatureCloudflare D1PostgreSQL
Released20221996
CompanyCloudflarePostgreSQL Global Development Group
CountryUnited StatesInternational
Region / AvailabilityGlobal edge (Cloudflare network)Self-host / multi-cloud

Pricing comparison

PlanCloudflare D1PostgreSQL
Modelusageopen-source
Free tierYesYes
Starts at$0/mo$0/mo
Plan 1Free: FreeFree tier with 5GB total storage, 5 million row reads/day, and 100,000 row writes/day — very generous.Open Source: Free
Plan 2Workers Paid: Usage-basedMonthly includes 5 GB storage, 25 billion row reads, and 50 million row writes.Managed clouds: Vendor pricingMany managed hosts available
Plan 3Exceeding the free quota: Usage-based$0.75/GB-month, $0.001/million row reads, $1.00/million row writes.—

Feature checklist

FeatureCloudflare D1PostgreSQL
Open Source✗✓https://github.com/postgres/postgres
Self-host Option✗✓
ACIDACID within a SQLite databaseFull ACID compliance
Index SupportSQLite B-tree indexesB-tree, Hash, GiST, GIN, BRIN, and extension indexes (e.g. vectors)
ConcurrencyLimited writers; edge-friendly read fan-outExcellent MVCC for mixed read/write workloads
ScalabilityGlobal edge placement; not unlimited write scaleVertical scale + replicas; sharding via extensions/ops
SQL Support✓✓
Postgres Compatible✗✓
Serverless Database✓✗
Vector Search✗✓
Realtime✗✗
Built-in Auth✗✗
Blob / File Storage✗ (Supports R2 object storage within the Cloudflare ecosystem.)https://developers.cloudflare.com/r2/✗
Edge Compatible✓✗
AI SQL / NL Query✗✗
AI Schema Assist✗✗
AI Agent / MCP✗✗
Team Collaboration✓✓
Use CaseEdge SQLite for Cloudflare Workers and low-latency SQL near usersGeneral-purpose open-source relational database and extension hub

Pros & cons

Cloudflare D1

  • Ultra-low latency at the edge
  • Tight Workers / Pages integration
  • Simple SQLite mental model
  • Cloudflare's full-stack closed-loop ecosystem (seamless integration of Workers, Pages, R2 storage, and KV).
  • SQLite limits vs full Postgres
  • No built-in auth/storage suite
  • Replication / multi-region story still evolving

PostgreSQL

  • Gold-standard open-source SQL engine
  • Huge extension ecosystem (including vectors)
  • Foundation for many modern BaaS platforms
  • You assemble auth/storage yourself
  • Ops complexity grows without a managed host
  • Not a serverless product by itself

Dimension scores

Editorial 0–10 scores across shared dimensions — higher is better for that axis.

DimensionCloudflare D1PostgreSQL
Capability
7.5
9.2
Privacy
7.0
9.5
Value
9.0
9.5
Depth
6.5
9.5
Ecosystem
8.5
9.5
DX
8.0
8.0
CapabilityPrivacyValueDepthEcosystemDX
  • Cloudflare D1
  • PostgreSQL

FAQ

Is Cloudflare D1 better than PostgreSQL? (2026)

It depends on workflow. Cloudflare D1 emphasizes serverless sqlite database that runs on cloudflare’s global edge network. PostgreSQL emphasizes advanced open-source relational database with rich sql, extensions, and reliability. Use the feature checklist above for your stack.

Which use cases fit Cloudflare D1 vs PostgreSQL?
  • Cloudflare D1: Edge SQLite for Cloudflare Workers and low-latency SQL near users
  • PostgreSQL: General-purpose open-source relational database and extension hub
What are the main differences between Cloudflare D1 and PostgreSQL?
  • Open Source: Cloudflare D1 (no) vs PostgreSQL (yes)
  • Self-host Option: Cloudflare D1 (no) vs PostgreSQL (yes)
  • ACID: Cloudflare D1 (ACID within a SQLite database) vs PostgreSQL (Full ACID compliance)
  • Index Support: Cloudflare D1 (SQLite B-tree indexes) vs PostgreSQL (B-tree, Hash, GiST, GIN, BRIN, and extension indexes (e.g. vectors))
  • Concurrency: Cloudflare D1 (Limited writers; edge-friendly read fan-out) vs PostgreSQL (Excellent MVCC for mixed read/write workloads)
How do Cloudflare D1 and PostgreSQL compare on pricing?

Cloudflare D1 pricing overview:

  • Has a free tier
  • Pricing model: usage-based
  • Starting from ~$0/mo
  • Plan Free: Free
  • Plan Workers Paid: Usage-based
  • Plan Exceeding the free quota: Usage-based

PostgreSQL pricing overview:

  • Has a free tier
  • Pricing model: open source
  • Starting from ~$0/mo
  • Plan Open Source: Free
  • Plan Managed clouds: Vendor pricing

Always verify current prices on the vendor site before buying.

Do Cloudflare D1 and PostgreSQL offer a free tier?
  • Cloudflare D1: Has a free tier
  • PostgreSQL: Has a free tier
Are Cloudflare D1 and PostgreSQL open source?
  • Cloudflare D1: no
  • PostgreSQL: yes
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Related alternatives

Cloudflare D1 alternatives

PostgreSQL alternatives

Disclaimer:Not Financial or Investment Advice, Educational/Dev Tool Comparison Only. Information may change; always verify pricing on the vendor site before purchasing.