Head-to-head · In-Memory Databases
Valkey vs Tarantool DB
Our verdict
- Highest scoreValkey · 8.7/10
Valkey scores higher on our rubric for in-memory databases: 8.7 against 8.6 out of 10; our editors rank them #5 and #6.
Valkey is the better fit for open-source Redis-compatible deployments. Tarantool DB is the better fit for open-source self-hosted key-value and document systems.
- Valkey fits best
Open-source Redis-compatible deployments
- Tarantool DB fits best
Open-source self-hosted key-value and document systems
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Side by side
| Feature | Valkey 8.7/10 Visit ↗ | Tarantool DB 8.6/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.7 | 8.6 |
| Ranking | #5 in In-Memory Databases | #6 in In-Memory Databases |
| Best for | Open-source Redis-compatible deployments | Open-source self-hosted key-value and document systems |
| Pricing model | Free | Paid |
| Starting price | Open source | Pricing on request |
| Free plan | Not checked yet | Not checked yet |
| Free trial | — | — |
| Deployment | Self-hosted | Self-hosted, Cloud |
| Platforms | Linux, macOS | Linux, macOS |
| Support | Community, Docs | Email, Community, Docs · 24/7 |
| Built for | Solo, Small business, Mid-market, Enterprise | Mid-market, Enterprise |
| Features Valkey 0/4 · Tarantool DB 0/4 | ||
| Data persistence | Not checked yet | Not checked yet |
| High availability | Not checked yet | Not checked yet |
| SQL support | Not checked yet | Not checked yet |
| Vector search | Not checked yet | Not checked yet |
| Specs | ||
| Deployment | Not checked yet | Not checked yet |
| Included memory | Not checked yet | Not checked yet |
| Supported data models | Not checked yet | Not checked yet |
| Our review | ||
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| Cons |
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| Our verdict | Valkey is an open-source, BSD-licensed in-memory data structure store for databases, caching, message queues, and streaming workloads. It is designed for developers and infrastructure teams that want to deploy their own datastore on Linux,… Read the review → |
Tarantool DB is an open-source, self-hosted in-memory NoSQL database for organizations building high-load, real-time services and core-system caches. It supports key-value, table, and document data models, along with CRUD operations,… Read the review → |
Strengths and trade-offs
Valkey — where it wins
- Broad in-memory structures, including streams and geospatial indexes
- Persistence, replication, Sentinel failover, and cluster sharding
- Supports TTLs, Lua scripting, transactions, and publish/subscribe
Where it doesn't
- Requires self-hosted deployment and infrastructure management
- Primarily developed and tested on Linux and macOS
- Managed offerings come from separate ecosystem participants
Tarantool DB — where it wins
- Supports key-value, table, and document data models
- Combines persistence, replication, sharding, and ACID transactions
- Exports metrics to Prometheus and Grafana
Where it doesn't
- Self-hosted deployment places infrastructure management with the team
- In-memory storage can require careful resource planning
- Redis compatibility covers Redis data types and 60+ commands
- Valkey8.7/10 · Open source
A free, self-hosted datastore for caching, messaging, streaming, and database workloads.
Visit ValkeyFull verdict → - Tarantool DB8.6/10 · Pricing on request
A self-hosted choice for teams needing clustered, persistent in-memory data services.
Visit TarantoolFull verdict →
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All In-Memory databases comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update





