What is Cloudflare Workers used for?

Cloudflare Workers is a serverless runtime that executes JavaScript and WebAssembly code at Cloudflare edge locations close to end users. It is a good fit for edge APIs and request routing, and adding custom logic in front of a website.

Is Cloudflare Workers free?

Yes. Cloudflare Workers has a free plan. Workers has a free tier of 100k requests a day. The paid tier is metered at $0.30 per million requests and $0.02 per million CPU milliseconds.

Is Cloudflare Workers open source?

No. Cloudflare Workers is proprietary (closed-source) software and can't be self-hosted. Open-source alternatives to Cloudflare Workers include OpenFaaS and Tau.

What are some alternatives to Cloudflare Workers?

Cloudflare Workers competes with AWS Lambda, Deno Deploy and Vercel. For open-source options, see Enlisted's ranked list of open-source Cloudflare Workers alternatives.

Cloudflare Workers: features, pricing and alternatives

About Cloudflare Workers

Cloudflare Workers is a serverless runtime that executes code at Cloudflare's edge locations, close to the people making requests. Developers write functions in JavaScript or in languages that compile to WebAssembly, and Cloudflare runs them without any servers to provision or operate.

Workers is a core part of the Cloudflare developer platform and is often used for APIs, request routing and edge logic. It is a proprietary, vendor-hosted service with no self-hosted edition, and Cloudflare documents the current limits, bindings and pricing.

Key features

Runs JavaScript and WebAssembly at the edge
Executes code near end users
No servers to provision or operate
Part of the Cloudflare developer platform

Good fit for

→Edge APIs and request routing
→Adding custom logic in front of a website

Tags: cloudflare; serverless; edge-computing; javascript; webassembly; functions; cloud

Cloudflare Workers: questions and answers

What is Cloudflare Workers used for?: Cloudflare Workers is a serverless runtime that executes JavaScript and WebAssembly code at Cloudflare edge locations close to end users. It is a good fit for edge APIs and request routing, and adding custom logic in front of a website.
Is Cloudflare Workers free?: Yes. Cloudflare Workers has a free plan. Workers has a free tier of 100k requests a day. The paid tier is metered at $0.30 per million requests and $0.02 per million CPU milliseconds.
Is Cloudflare Workers open source?: No. Cloudflare Workers is proprietary (closed-source) software and can't be self-hosted. Open-source alternatives to Cloudflare Workers include OpenFaaS and Tau.
What are some alternatives to Cloudflare Workers?: Cloudflare Workers competes with AWS Lambda, Deno Deploy and Vercel. For open-source options, see Enlisted's ranked list of open-source Cloudflare Workers alternatives.