Dragonfly DB
Redis- and Memcached-compatible in-memory data store
FreeDB2 impressions
Dragonfly DB is a free alternative to Redis.
Dragonfly DB is a multi-threaded, Redis/Valkey/Memcached-compatible in-memory data store for high-throughput workloads.
- for
- Developers and ops teams needing low-latency caching, queues, or feature stores at scale.
- pricing
- contact sales
- license
- open source
Key features
- Thread-per-core architecture — Utilizes every CPU core to eliminate scaling bottlenecks and boost throughput.
- Improved memory efficiency — Delivers up to 30% better memory usage compared to Redis.
- Single-node cluster replacement — One Dragonfly instance can replace an entire Redis cluster, reducing node count.
- Lower infrastructure cost — Optimized for modern cloud hardware, cutting total cost by up to 80% per quoted cases.
- High QPS performance — Benchmarks show up to 25× higher queries-per-second than Redis.
Use cases
- Caching hot data for web and mobile applications
- Storing feature vectors for machine-learning serving
- Job queue back-ends for background processing
- Real-time analytics dashboards with sub-millisecond latency
Dragonfly DB vs alternatives
 Dragonfly DB |  Redis |  Upstash | |
|---|---|---|---|
| Best for | High-throughput in-memory caching | General purpose in-memory caching | Serverless Redis |
| Pricing | Contact sales | Subscription | Subscription |
| DevHunt upvotes | 0 | 0 | 0 |
| Launched | — | — | — |
- Dragonfly DB vs Redis: Redis is the original in-memory store; Dragonfly is a drop-in compatible reimplementation built around a multi-threaded, shared-nothing design.
- Dragonfly DB vs Upstash: Upstash offers serverless Redis with pay-per-use, but does not provide the same thread-per-core performance.
Dragonfly DB FAQ
Is Dragonfly a drop-in replacement for Redis?+
Yes, it is API compatible with Redis, Valkey, and Memcached, allowing quick migrations.
How does Dragonfly achieve higher throughput?+
Its shared-nothing, thread-per-core design uses every core, eliminating the single-thread bottleneck of Redis.
Can I run Dragonfly on existing cloud infrastructure?+
Dragonfly is optimized for modern cloud hardware and can replace a Redis cluster with a single instance.
What kind of cost savings can be expected?+
Customers report up to 80% savings versus managed Redis/Valkey services, based on custom quotes.
Is there a free tier or trial?+
You can sign up for free without a card, but pricing is provided via a custom quote.
Summarized by DevHunt from dragonflydb.io · Oct 1, 2026. Details may change; check the official site.
About this listing
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