AWS Lambda vs Cloudflare Workers
A detailed comparison to help you choose between AWS Lambda and Cloudflare Workers.
Quick Verdict
4.1/5
AWS Lambda
0 reviews
4.3/5
Cloudflare Workers
0 reviews
Cloudflare Workers is rated higher (4.3 vs 4.1). AWS Lambda is the original FaaS service — run code without servers. Supports 15+ runtimes, 1M free requests/month, and integrates deeply with 200+ AWS services. Triggered by S3, DynamoDB, API Gateway, and more. Run JavaScript, Python, and Rust functions at the edge with sub-millisecond latency. Ideal for APIs, middleware, and full-stack applications needing global distribution.
 AWS Lambda The original serverless functions service | Cloudflare Workers Deploy serverless code globally on Cloudflare's edge network | |
|---|---|---|
| Overview | ||
| Rating | 4.1 (0 reviews) | 4.3 (0 reviews)✓ |
| Pricing model | freemium (pay per request + GB-second; MicroVMs/Managed Instances metered differently) | freemium |
| Starting price | Free tier available | Free tier available |
| Best for | AWS developers building event-driven, variable-traffic workloads — webhooks, media processing, scheduled jobs, API backends — who want to stop managing servers entirely | Latency-sensitive APIs, middleware, edge rendering and full-stack applications that want global deployment with no infrastructure to run — especially teams already using Cloudflare's storage and CDN products. |
| Specifications (entry plan) | ||
| CPU cores | — | 10 vCPU |
| RAM | — | — |
| Storage | — | 1 GB |
| Bandwidth | — | — |
| SLA uptime | 99.95% | 100%✓ |
| Data-center count | — | 330 |
| €/vCPU/mo | — | €0.00 |
| Features | ||
| IPv6 | ✓ | |
| DDoS protection | ||
| Automated backups | ||
| Snapshots | ||
| Managed option | ||
| Bare metal | ||
| GPU available | ||
| S3-compatible | ||
| Hourly billing | ✓ | |
| Free tier | ||
| Data-center locations | ||
| Regions | All 39 AWS regions / 124 AZs | Global — 300+ cities |
| Tags | ||
| Tags | free tierapi accessus datacentereu datacenterapac datacenter | free tierddos protectionipv6eu datacenterus datacenterapac datacenterapi accessopen source |
| Visit AWS Lambda → | Visit Cloudflare Workers → | |
AWS Lambda
Pros
- + Zero idle cost with a free tier that covers small products: 1M requests and 400,000 GB-seconds monthly
- + Graviton pricing at $0.0000133334 per GB-second undercuts x86 by roughly 20%
- + Automatic multi-AZ scaling with a 99.95% per-region SLA and no capacity planning
- + Deep event integration across AWS services, with three form factors (Event/Web Functions, MicroVMs)
Cons
- - Per-request and GB-second pricing gets expensive against committed compute at steady high utilization
- - Cold starts — hundreds of milliseconds to seconds depending on runtime — with provisioned concurrency as an extra meter
- - 15-minute execution limit and payload caps make it wrong for long-running batch work
- - AWS-specific event plumbing creates real lock-in; distributed event chains are hard to debug
Cloudflare Workers
Pros
- + No cold starts: V8 isolates start in microseconds at 330+ locations
- + CPU-time billing with a genuinely usable free tier (100k requests/day)
- + No egress or bandwidth charges on any plan
- + Storage stack (KV, D1, Durable Objects, R2) binds declaratively and stays in-network
- + Strong docs: pricing and limits pages are explicit and example-driven
Cons
- - CPU time caps exclude compute-heavy and long-running workloads
- - Real vendor lock-in through Durable Objects, bindings and deployment model
- - KV writes ($5.00/M) and Durable Objects duration billing surprise stateful designs
- - Conceptual shift for teams used to container-based serverless
- - No uptime SLA below the Business plan
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