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Cloudflare Workers vs AWS Lambda (2026): Which Serverless Platform Should You Choose?

Quick Answer

Cloudflare Workers is the edge-computing choice — zero cold starts, 300+ global edge locations, and excellent for latency-sensitive workloads (auth, A/B testing, API middleware). AWS Lambda is the AWS ecosystem choice — deeper service integration (S3, DynamoDB, SQS, SNS), longer execution times (up to 15 minutes), more memory options (up to 10GB), and the larger tooling ecosystem. Choose Workers for edge performance; choose Lambda for AWS-integrated backend logic.

Cloudflare Workers

9.0/10

Best edge serverless

AWS Lambda

9.1/10

Best AWS-integrated serverless

Feature Comparison

FeatureCloudflare WorkersAWS Lambda
Cold StartsNone — V8 isolates, sub-millisecond100ms-1s+ depending on runtime
Global Distribution300+ edge locations globallyRegional deployment (multi-region optional)
Max Execution Time30 seconds (CPU time limit)15 minutes
MemoryUp to 128MBUp to 10GB
Free Tier100K requests/day1M requests/month + 400K GB-seconds
StorageWorkers KV, D1 (SQLite), R2 (object)S3, DynamoDB, RDS, ElastiCache
LanguagesJS, TS, Rust, Python, WASMNode, Python, Java, Go, Ruby, .NET, custom
Best ForEdge middleware, low-latency APIs, CDN logicAWS-integrated backends, long-running tasks

Which do you use?

Cloudflare Workers
AWS Lambda

Who Should Choose What?

Choose Cloudflare Workers if:

You need zero cold starts for user-facing APIs, want to run logic at the edge closest to your users globally, or are building with Cloudflare's ecosystem (R2 object storage, D1 SQLite, Durable Objects). Workers is exceptional for authentication middleware, rate limiting, A/B testing, and API gateway logic where latency matters.

Choose AWS Lambda if:

You are building in the AWS ecosystem and need deep integration with S3, DynamoDB, SQS, SNS, or RDS. Lambda's event-driven architecture (trigger from S3 uploads, DynamoDB streams, API Gateway) is powerful for backend workflows. Lambda also supports longer execution times (15 minutes) and more memory (10GB) for compute-intensive tasks.

FAQ

Is Cloudflare Workers or AWS Lambda better for serverless?
Workers is better for edge computing with zero cold starts. Lambda is better for AWS-integrated backend logic with longer execution times and more memory. The right choice depends on whether you need edge performance or deep AWS service integration.
Is Cloudflare Workers free?
Yes — Cloudflare Workers free tier includes 100,000 requests/day. Paid plan is $5/month for 10 million requests. AWS Lambda free tier is 1 million requests/month. Both have generous free tiers for most small projects.

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