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Varnish Cache vs Dragonfly(2026)

Varnish Cache is better for teams that need extremely high throughput http caching. Dragonfly is the stronger choice if dramatically faster than redis. Varnish Cache is open-source (from $0) and Dragonfly is open-source (from $0).

Full feature breakdown, pricing details, and pros & cons below.

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Varnish Cache logo

Varnish Cache

open-source

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 Cache
Dragonfly logo

Dragonfly

open-source

Dragonfly is a modern in-memory data store fully compatible with Redis and Memcached APIs, but up to 25x faster and more memory-efficient thanks to its multi-threaded, shared-nothing architecture.

Starting at $0

Visit Dragonfly

How Do Varnish Cache and Dragonfly Compare on Features?

FeatureVarnish CacheDragonfly
Pricing modelopen-sourceopen-source
Starting price$0$0
HTTP/HTTPS reverse proxy
VCL configuration language
Edge Side Includes (ESI)
Health checks
Grace mode
Hit-for-pass
Varnish Enterprise
Redis API compatible
Multi-threaded
Up to 25x faster than Redis
Lower memory usage
Snapshots + replication
Managed cloud
Lua scripting

Varnish Cache Pros and Cons vs Dragonfly

V

Varnish Cache

+Extremely high throughput HTTP caching
+Flexible VCL
+Battle-tested at internet scale
+Free open source
Not a general key-value store
VCL learning curve
Memory-only (no persistence)
Setup complexity
D

Dragonfly

+Dramatically faster than Redis
+Drop-in Redis replacement
+Less memory usage
+Open source
Newer, less battle-tested
Smaller community
Some Redis features still in progress

Should You Use Varnish Cache or Dragonfly?

Choose Varnish Cache if…

  • Extremely high throughput HTTP caching
  • Flexible VCL
  • Battle-tested at internet scale

Choose Dragonfly if…

  • Dramatically faster than Redis
  • Drop-in Redis replacement
  • Less memory usage

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