jellydator/ttlcache

Health v2 · maintenance only

Adoption not part of the score

1278 stars · 145 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

TTLCache is an in-memory cache library for Go with per-item or cache-wide TTL expiration, built using generics. It offers thread-safe operations, capacity limits, lazy loading, event handlers, and metrics.

Use cases

• cache api responses in memory with expiration
• add a ttl-based cache to a go service
• limit cache size by item count or cost
• lazily load missing cache values with duplicate suppression
• track cache hits and misses with metrics
• run eviction callbacks when items expire

When to choose

• you need a lightweight in-process cache with TTL expiration in Go
• you want generics-based type safety without interface{} casts
• you need capacity limits, loaders, or eviction event hooks

When to avoid

• you need a distributed or shared cache across multiple instances (use Redis)
• your dataset exceeds available memory
• you need persistence or eviction across process restarts

Facets

library · maturity active

caching developer-tools backend performance go ttl-cache in-memory-cache generics thread-safe lru-alternative

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