Valkey vs eXtremeDB

Valkey8.7Visit eXtremeDB8.5Visit

Higher score Valkey #5 in In-Memory Databases 8.7/10 Open source ✓ 0 of 4 features Visit Valkey

vs

eXtremeDB #7 in In-Memory Databases 8.5/10 Pricing on request · 60-day trial Free trial✓ 4 of 4 features Visit McObject

• Valkey fits best

  Open-source Redis-compatible deployments

• eXtremeDB fits best

  Embedded and edge applications needing durability

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Side by side

Feature	Valkey 8.7/10 Visit ↗	eXtremeDB 8.5/10 Visit ↗
At a glance
Editor score	8.7	8.5
Ranking	#5 in In-Memory Databases	#7 in In-Memory Databases
Best for	Open-source Redis-compatible deployments	Embedded and edge applications needing durability
Pricing model	Free	Paid
Starting price	Open source	Pricing on request · 60-day trial
Free plan	Not checked yet	Not checked yet
Free trial	—	60 days
Deployment	Self-hosted	Cloud, Self-hosted
Platforms	Linux, macOS	Windows, macOS, Linux, iOS, Android
Support	Community, Docs	Email, Phone, Docs
Built for	Solo, Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Valkey 0/4 · eXtremeDB 4/4
Data persistence	Not checked yet	✓ (best)
High availability	Not checked yet	✓ (best)
SQL support	Not checked yet	✓ (best)
Vector search	Not checked yet	✓ (best)
Specs
Deployment	Not checked yet	Both
Included memory	Not checked yet	Not checked yet
Supported data models	Not checked yet	relational SQL, object-based/native, row-oriented, columnar time-series, in-memory, persistent, hybrid
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 in-memory, persistent, and hybrid storage modes Combines replication, failover, clustering, and distributed queries Offers SQL, native APIs, vector indexes, and time-series layouts
Cons	Requires self-hosted deployment and infrastructure management Primarily developed and tested on Linux and macOS Managed offerings come from separate ecosystem participants	Pricing requires contacting McObject's sales team The 60-day offer is an evaluation trial, not a perpetual free plan Its broad feature set may exceed the needs of simple embedded applications
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 →	eXtremeDB is an embedded database management system for professional developers building resource-constrained, real-time, IoT, networking, financial, and high-performance computing applications. It supports embedded and client/server… 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

• eXtremeDB — where it wins

  • Supports in-memory, persistent, and hybrid storage modes
  • Combines replication, failover, clustering, and distributed queries
  • Offers SQL, native APIs, vector indexes, and time-series layouts

  Where it doesn't

  • Pricing requires contacting McObject's sales team
  • The 60-day offer is an evaluation trial, not a perpetual free plan
  • Its broad feature set may exceed the needs of simple embedded applications

• Valkey8.7/10 · Open source

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

  Visit ValkeyFull verdict →
• eXtremeDB8.5/10 · Pricing on request · 60-day trial

  A broad embedded database for durable, real-time, and distributed workloads.

  Visit McObjectFull verdict →