DuckDB is a high-performance analytical database system

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• Updated Nov 12, 2026
• C++

A SQL database in Rust: SQLite-compatible, now also speaking Postgres (experimental). The LLVM of databases.

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• Updated Nov 12, 2026
• Rust

Simple and fast JSON database

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• Updated Mar 27, 2026
• JavaScript

libSQL is a fork of SQLite that is both Open Source, and Open Contributions.

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• Updated Nov 7, 2026
• C

A transactional, relational-graph-vector database that uses Datalog for query. The hippocampus for AI!

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• Updated Dec 4, 2024
• Rust

A cloud native embedded storage engine built on object storage.

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• Updated Nov 12, 2026
• Rust

The AI-Native Search Database. Best for agent storage, it unifies vector, text, structured, and semi-structured data into a single engine. This all-in-one database makes agents smarter, easier to run, and more stable.

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• Updated Nov 12, 2026
• C++

chDB is an in-process OLAP SQL Engine 🚀 powered by ClickHouse

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• Updated Nov 12, 2026
• Python

🗻 Log-structured, embeddable key-value storage engine written in Rust

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• Updated Nov 11, 2026
• Rust

An educational OLAP database system.

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• Updated Aug 10, 2025
• Rust

Modern embedded SQL database

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• Updated Oct 20, 2026
• Go

Tonbo is an embedded database for serverless and edge runtimes.

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• Updated Jul 18, 2026
• Rust

A simple, fast and versatile Datalog database

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• Updated Nov 12, 2026
• Clojure

Fastfull embedded transactional key-value storage engine ★ Surpasses the legendary LMDB in reliability, capabilities and performance ★ Used in hundreds of open source projects, including Ethereum.

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• Updated Oct 30, 2026
• C

Transactional schema-less embedded database used by JetBrains YouTrack and JetBrains Hub.

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• Updated Nov 2, 2026
• Java

PoloDB is an embedded document database.

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• Updated Nov 4, 2026
• Rust

NoSQL embedded document store for Java

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• Updated Nov 12, 2026
• Java

Lightning Memory Database (LMDB) for Java: a low latency, transactional, sorted, embedded, key-value store

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• Updated Nov 3, 2026
• Java

A lightweight document-oriented NoSQL database written in pure Golang.

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• Updated Sep 9, 2025
• Go

Drop-in embedded database in Rust

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• Updated Nov 12, 2026
• Rust