KeyDB vs Varnish Cache(2026)
KeyDB is better for teams that need full redis compatibility. Varnish Cache is the stronger choice if extremely high throughput http caching. KeyDB is open-source (from $0) and Varnish Cache is open-source (from $0).
Full feature breakdown, pricing details, and pros & cons below.
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KeyDB
KeyDB is a high-performance, multi-threaded fork of Redis with active-active replication and FLASH storage support — offering significant performance gains with full Redis API compatibility.
Starting at $0
Visit KeyDBVarnish Cache
Varnish Cache is a high-performance HTTP accelerator used by the world's busiest websites. It caches HTTP responses in memory, offloading backends and serving millions of requests per second.
Starting at $0
Visit Varnish CacheHow Do KeyDB and Varnish Cache Compare on Features?
| Feature | KeyDB | Varnish Cache |
|---|---|---|
| Pricing model | open-source | open-source |
| Starting price | $0 | $0 |
| Multi-threaded | ✓ | — |
| Active-active replication | ✓ | — |
| FLASH storage support | ✓ | — |
| Full Redis API | ✓ | — |
| Sub-millisecond latency | ✓ | — |
| Modules support | ✓ | — |
| ACL support | ✓ | — |
| HTTP/HTTPS reverse proxy | — | ✓ |
| VCL configuration language | — | ✓ |
| Edge Side Includes (ESI) | — | ✓ |
| Health checks | — | ✓ |
| Grace mode | — | ✓ |
| Hit-for-pass | — | ✓ |
| Varnish Enterprise | — | ✓ |
KeyDB Pros and Cons vs Varnish Cache
KeyDB
Varnish Cache
Should You Use KeyDB or Varnish Cache?
Choose KeyDB if…
- •Full Redis compatibility
- •Active-active replication
- •Better CPU utilization than Redis
Choose Varnish Cache if…
- •Extremely high throughput HTTP caching
- •Flexible VCL
- •Battle-tested at internet scale