Fastly Compute Homepage

Fastly Compute

Fast Edge Functions for Dynamic Apps

United States
Category
Managed FaaS DBaaS IaC Edge
Pricing Model
Free Trial

Overview

Fastly Compute Homepage
Fastly Compute Homepage
Category
Managed FaaS DBaaS IaC Edge
Pricing Model
Free Trial

What is Fastly Compute?

Fastly, best known as a CDN, introduced Compute@Edge in 2019 as a beta, took it to general availability in 2021, and in 2023 shortened the name to Compute as it matured into the company’s core compute platform.

Fastly has been open and quick when it comes to adding features and functionality to their Serverless product. The platform runs on WASM logic (with JIT compilation). All in all, one could expect very fast responses when it comes to running your application on Fastly. You can write Compute programs in any WASI (WebAssembly System Interface)-supporting language through SDKs.

Fastly has a unique online fiddler tool to experiment and try different Edge features and functionality without even having to register, live log tailing and individual end-user request trailing.

A notable customer of Fastly’s Compute platform is LoveHolidays.

Use Cases

  • Serverless Functions

  • Edge Computing

  • Static Websites

  • Frontend Frameworks

Key Features

  • Autoscaling

  • Edge Data Storage Integration

  • Fast cold starts with WASI

  • Globally Distributed Edge Network

  • Instant Messaging

Fastly Acquires Glitch - A big deal for the Serverless space?

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Fastly has not made many public acquisitions. However their most recent acquisition is one that has potential to put a serious dent in the serverless market. …

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Features

Category

Managed
FaaS
DBaaS
IaC
Edge

Supported Runtimes

Go
JavaScript
Rust
TypeScript
WASI supporting SDKs

Supported Frameworks

Astro
Docusaurus
Gatsby
Next.js
React
Remix
SvelteKit
Vite
Vue

Execution Limits and Resource Quotas

Min. Memory
128 MB
Max. Memory
129 MB
Default Timeout
50 ms
Max. Timeout
2 min
Request Payload
5 MB
Response Payload
5 MB

Compliance

GDPR
HIPAA
ISO 27001
PCI DSS
SOC 2 Type 2
Fastly Compute Dashboard
Fastly Compute Dashboard

Pricing

Free Trial Quota

  • Free Trial

    $50 credit per month (No Creditcard required)

    $0

Resource Pricing

Fastly charges for Compute based on the total number of compute requests you make plus their compute duration and CPU time. Requests of 20 ms or less in duration do not incur any vCPU charges. vCPU time beyond 20ms is metered and charged in increments of 10 ms. The total number of metered vCPU milliseconds are aggregated and converted to seconds (1000 ms).

  • Compute Requests

    Per 1 Million Requests

    $0.50

  • Compute Duration

    Per GB-second

    $0.000035

  • vCPU

    Per vCPU second

    $0.000045

Get an estimate of your project costs with Fastly Compute

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Fastly Compute Regions

Fastly Compute's 79 datacenter locations by region. (April 7, 2025) - Map by d3js.org
Last updated: April 7, 2025

*Information is subject to change. Verify with the official Fastly Compute website.

Listings & Sponsorships

Reach developers researching deployment platforms.

Put your platform in front of developers, CTOs, and teams comparing serverless infrastructure, runtimes, and deployment solutions.

  • ✅ Reviewed provider listings on srvrlss.io
  • ✅ Sponsorship placements across high-visibility sections
  • ✅ Reach an audience actively researching platforms

Best Fastly Compute Alternatives

Alternatives to Fastly Compute by matching platform type, use cases, supported runtimes and deployment options.
Cloudflare Workers logo
Fermyon Wasm Functions logo
Koyeb logo
Taubyte logo

Frequently Asked Questions about Fastly Compute

Fastly Compute pricing is based on requests and compute duration. The first 20 ms of each request is free from vCPU charges. Beyond that: requests cost $0.50 per million, compute duration costs $0.000035 per GB-second, and vCPU time costs $0.000045 per vCPU-second. Fastly offers a free trial with $50 in monthly credits for new accounts.

The closest alternatives to Fastly Compute are Cloudflare Workers for edge functions with generous free tier, Deno Deploy for JavaScript/TypeScript edge computation, and Vercel Edge Functions if you are already in the Vercel ecosystem. For WASM-focused edge compute, Fastly is unique in its WebAssembly-first approach.

Fastly Compute is an edge computing platform that runs your code on Fastly’s global CDN network. It uses WebAssembly (WASM) to execute programs written in Rust, JavaScript, TypeScript, Go, and other WASI-compatible languages. You deploy code that runs at the edge in response to HTTP requests, making it ideal for accelerating APIs, dynamic content generation, and security checks.

Yes, WebAssembly is the core of Fastly Compute. Your code is compiled to WASM and runs in a Wasmtime runtime at the edge. This gives predictable performance, sandboxed security, and sub-50 microsecond cold starts. You can use any WASI-compatible language through Fastly SDKs.

Common Fastly Compute use cases include API gateway logic, edge-side includes, A/B testing, image optimization, authentication checks, URL rewrites, bot detection, and dynamic content assembly. Because it runs on Fastly’s CDN, it is especially good for reducing origin traffic and improving end-user response times.

Yes. Fastly Compute excels at API use cases where you need low-latency responses, rate limiting, request validation, or API composition at the edge. The WASM-based execution keeps cold starts near zero, which matters for API workloads. For general-purpose serverless APIs, Cloudflare Workers or Deno Deploy may be simpler to get started with.

Fastly Compute pricing combines request volume with compute duration. Requests under 20ms incur no vCPU charge. A typical API handler at ~10ms per request costs $0.50 per million requests. Add compute duration ($0.000035/GB-second) and vCPU ($0.000045/vCPU-second) if your requests exceed 20ms. The $50/month free trial credit covers meaningful early usage.

See Fastly Compute pricing

No, Fastly Compute is not free for production use. New accounts get a free trial with $50 in monthly credits. That is enough to experiment and build a small app. After the trial, pricing is based on requests ($0.50 per million), compute duration ($0.000035/GB-second), and optional vCPU time.

Fastly Compute supports any WASI-compatible language through its software development kits. Officially supported languages include Rust, JavaScript, TypeScript, Go, Swift, and Zig. The runtime is WebAssembly-based, so you compile your code to WASM and Fastly executes it at the edge. This gives predictable performance and near-zero cold starts compared to JavaScript-only edge platforms.