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Head-to-head · In-Memory Databases

Valkey vs Tarantool DB

  • Updated Oct 2026
  • Both researched from official sources
Higher score Valkey #5 in In-Memory Databases 8.7/10 Open source ✓ 0 of 4 features Visit Valkey
Tarantool DB #6 in In-Memory Databases 8.6/10 Pricing on request ✓ 0 of 4 features Visit Tarantool

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

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

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
Pros
  • Broad in-memory structures, including streams and geospatial indexes
  • Persistence, replication, Sentinel failover, and cluster sharding
  • Supports TTLs, Lua scripting, transactions, and publish/subscribe
  • Supports key-value, table, and document data models
  • Combines persistence, replication, sharding, and ACID transactions
  • Exports metrics to Prometheus and Grafana
Cons
  • Requires self-hosted deployment and infrastructure management
  • Primarily developed and tested on Linux and macOS
  • Managed offerings come from separate ecosystem participants
  • 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
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 →
  1. ValkeyIn-Memory Databases 8.7Open source
  2. Tarantool DBIn-Memory Databases 8.6Pricing on request

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 →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update