Tarantool DB vs eXtremeDB

Tarantool DB8.6Visit eXtremeDB8.5Visit

Higher score Tarantool DB #6 in In-Memory Databases 8.6/10 Pricing on request ✓ 0 of 4 features Visit Tarantool

vs

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

• Tarantool DB fits best

  Open-source self-hosted key-value and document systems

• eXtremeDB fits best

  Embedded and edge applications needing durability

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Side by side

Feature	Tarantool DB 8.6/10 Visit ↗	eXtremeDB 8.5/10 Visit ↗
At a glance
Editor score	8.6	8.5
Ranking	#6 in In-Memory Databases	#7 in In-Memory Databases
Best for	Open-source self-hosted key-value and document systems	Embedded and edge applications needing durability
Pricing model	Paid	Paid
Starting price	Pricing on request	Pricing on request · 60-day trial
Free plan	Not checked yet	Not checked yet
Free trial	—	60 days
Deployment	Self-hosted, Cloud	Cloud, Self-hosted
Platforms	Linux, macOS	Windows, macOS, Linux, iOS, Android
Support	Email, Community, Docs · 24/7	Email, Phone, Docs
Integrations	4 integrations	8 integrations
Built for	Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Tarantool DB 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	Supports key-value, table, and document data models Combines persistence, replication, sharding, and ACID transactions Exports metrics to Prometheus and Grafana	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	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	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	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 →	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

• 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

• 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

• Tarantool DB8.6/10 · Pricing on request

  A self-hosted choice for teams needing clustered, persistent in-memory data services.

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

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

  Visit McObjectFull verdict →