hashicorp/golang-lru

Health v2 · maintenance only

Adoption not part of the score

5114 stars · 541 forks observed · 2026-08-28

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

A Go library implementing fixed-size, thread-safe LRU caches, including variants with TTL-based expiration and ARC support. It is based on the cache implementation from Groupcache and is maintained by HashiCorp.

Use cases

• add an in-memory LRU cache to a Go application
• limit memory usage by evicting least recently used entries
• cache values with a time-to-live expiration
• build a thread-safe bounded cache for concurrent access
• memoize expensive function results with a fixed-size cache

When to choose

• you need a small, dependency-light, thread-safe LRU cache in Go
• you want optional TTL expiration or ARC eviction policies
• you need generics support for typed cache keys and values

When to avoid

• you need a distributed or shared cache across processes (use Redis or similar)
• you need persistence or advanced features like cache statistics dashboards
• your application is not written in Go

Facets

library · maturity stable

caching developer-tools performance go cross-platform lru-cache in-memory-cache thread-safe ttl eviction

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