valyala/fasthttp

Health v2 · maintenance only

Adoption not part of the score

23452 stars · 1854 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

A high-performance HTTP server and client library for Go, optimized for zero memory allocations in hot paths and up to 10x faster than the standard net/http package. It is designed for edge cases requiring thousands of requests per second with consistent low-millisecond response times.

Use cases

• build a high-throughput http server in go
• serve 200k requests per second from a single server
• reduce memory allocations in go http handling
• fast http client for go
• handle many concurrent keep-alive connections
• replace net/http for performance-critical services

When to choose

• your server or client must handle thousands of small to medium requests per second
• you need consistent low millisecond response times under heavy load
• you have measured that net/http is a bottleneck

When to avoid

• for most general-purpose applications where net/http is easier and sufficient
• you need full HTTP/2 or HTTP/1.1 feature coverage
• low traffic services where performance differences are unnoticeable

Facets

library · maturity stable

http-server http-client web-framework web-development backend performance networking go windows cross-platform high-performance zero-allocation http net-http-alternative linux macos

Member repositories

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markdown · JSON · MCP: product_card(name="valyala/fasthttp")