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Head-to-head · In-Memory Databases

Couchbase Server vs Valkey

  • Updated Oct 2026
  • Both researched from official sources
  • 2 checks side by side
Higher score Couchbase Server #1 in In-Memory Databases 9.4/10 Free plan Free plan✓ 1 of 4 features Visit Couchbase
Valkey #5 in In-Memory Databases 8.7/10 Open source ✓ 0 of 4 features Visit Valkey

Couchbase Server leads on 0 checks, Valkey on 0, and 2 are even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreCouchbase Server · 9.4/10
  • Free planonly Couchbase Server
  • Most featuresCouchbase Server · 1 of 4

Couchbase Server scores higher on our rubric for in-memory databases: 9.4 against 8.7 out of 10; our editors rank them #1 and #5.

Couchbase Server is the better fit for teams wanting a broad, flexible in-memory platform. Valkey is the better fit for open-source Redis-compatible deployments.

  • Couchbase Server fits best

    Teams wanting a broad, flexible in-memory platform

  • Valkey fits best

    Open-source Redis-compatible deployments

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 Couchbase Server 9.4/10 Visit ↗ Valkey 8.7/10 Visit ↗
At a glance
Editor score 9.4 8.7
Ranking #1 in In-Memory Databases #5 in In-Memory Databases
Best for Teams wanting a broad, flexible in-memory platform Open-source Redis-compatible deployments
Pricing model Free plan + paid Free
Starting price — Open source
Free plan ✓ (best) Not checked yet
Free trial — —
Deployment Cloud, Self-hosted Self-hosted
Support Community, Docs Community, Docs
Built for Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Couchbase Server 1/4 · Valkey 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 ✓ (best) 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
  • Free Community Edition for development and production use
  • Combines key-value, JSON, SQL++, transactions, search, and vector indexing
  • Supports containers, Kubernetes, cloud infrastructure, and on-premises deployments
  • Broad in-memory structures, including streams and geospatial indexes
  • Persistence, replication, Sentinel failover, and cluster sharding
  • Supports TTLs, Lua scripting, transactions, and publish/subscribe
Cons
  • Community Edition clusters are limited to five nodes for Server 7.0 and later
  • Community Edition includes community-supported distribution
  • Enterprise pricing is based on production node count
  • Requires self-hosted deployment and infrastructure management
  • Primarily developed and tested on Linux and macOS
  • Managed offerings come from separate ecosystem participants
Our verdict

Couchbase Server is a distributed, open-source document database for enterprise applications that need more than basic key-value access. It stores JSON and binary documents, supports SQL++ querying and ACID transactions, and includes…

Read the review →

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 →
  1. Couchbase ServerIn-Memory Databases 9.4Free plan
  2. ValkeyIn-Memory Databases 8.7Open source

Strengths and trade-offs

  • Couchbase Server — where it wins

    • Free Community Edition for development and production use
    • Combines key-value, JSON, SQL++, transactions, search, and vector indexing
    • Supports containers, Kubernetes, cloud infrastructure, and on-premises deployments

    Where it doesn't

    • Community Edition clusters are limited to five nodes for Server 7.0 and later
    • Community Edition includes community-supported distribution
    • Enterprise pricing is based on production node count

  • 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
  • Couchbase Server9.4/10 · Free plan

    A broad in-memory platform with free production use and extensive database capabilities.

    Visit CouchbaseFull verdict →
  • Valkey8.7/10 · Open source

    A free, self-hosted datastore for caching, messaging, streaming, and database workloads.

    Visit ValkeyFull verdict →

More comparisons

All In-Memory databases comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update