ZODB

A native object database for Python, offering key-value and object graph storage.

EstablishedOpen SourceLow lock-in

Pricing

Free tier

Flat rate

Adoption

Stable

License

Open Source

Data freshness

Aging · Jun 8, 2026

Overview

What is ZODB?

ZODB is a high-performance, transactional object database designed specifically for Python. It allows developers to store complex data structures directly in the database without needing to serialize them into a different format.

Key differentiator

ZODB stands out as a native object database specifically tailored to Python, offering seamless integration and transactional support for complex data structures.

Capability profile

Capability Radar

Ease of StartEcosystemValueMaturityFlexibilityScale Ready

Honest assessment

Strengths & Weaknesses

↑ Strengths

Native object storage for Python objectsmedium

Transactional support with ACID propertiesmedium

Persistent data structures and complex queriesmedium

↓ Weaknesses

Steep learning curve for non-Python developershigh

API requires Python-specific patterns, TypeScript SDK is community-maintained

Limited ecosystem and integrations outside of Pythonmedium

ZODB primarily supports Python, with limited official support for other languages or frameworks

Performance issues at scale due to object-level lockinghigh

Object-level locking can lead to contention and performance bottlenecks in high-concurrency environments

Complex setup and configuration for production usemedium

Requires careful tuning of storage managers, cache sizes, and transaction settings for optimal performance

Fit analysis

Who is it for?

✓ Best for

Python projects requiring native object storage and ACID transactions

Applications needing to store complex, nested Python objects directly in the database without serialization

✕ Not a fit for

Projects that require real-time data processing or streaming capabilities

Developers looking for a cloud-hosted solution with managed services

Cost structure

Pricing

Free Tier

Available

Open source — free to use

Starts at

$0

Model

Flat rate

Enterprise

None

Performance benchmarks

How Fast Is It?

Ecosystem

Relationships

Next step

Get Started with ZODB

Step-by-step setup guide with code examples and common gotchas.

View Setup Guide →