DuckDB is a high-performance analytical database system
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A SQL database in Rust: SQLite-compatible, now also speaking Postgres (experimental). The LLVM of databases.
Simple and fast JSON database
libSQL is a fork of SQLite that is both Open Source, and Open Contributions.
A lightweight, lightning-fast, in-process vector database
Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.
- approximate-nearest-neighbor-search
- image-search
- nearest-neighbor-search
- recommender-system
An embedded key/value database for Go.
MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap-memory. It is a fast and easy to use embedded Java database engine.
Lightweight, fast and reliable key/value storage engine based on Bitcask.
- database
- kv-store
- golang
- data-structures
chDB is an in-process OLAP SQL Engine 🚀 powered by ClickHouse
An Embedded NoSQL, Transactional Database Engine
A simple, fast and versatile Datalog database
- key-value-store
- embedded-database
- fulltext-search
- vector-database
:snowboarder: EJDB2 — Embeddable JSON Database engine C library. Simple XPath like query language (JQL).
Embedded key-value store for read-heavy workloads written in Go
- go
- key-value
- hash-table
- key-value-store
Transactional schema-less embedded database used by JetBrains YouTrack and JetBrains Hub.
- embedded-database
- java
- kotlin
- key-value
Embeddable vector database for Go with Chroma-like interface and zero third-party dependencies. In-memory with optional persistence.
- embeddings
- go
- golang
- llm
EliasDB a graph-based database.
- golang
- graph
- embedded
- supports-transactions
A RocksDB compliant high performance scalable embedded key-value store
- key-value-store
- kvs
- storage-engine
- speedb
NoSQL embedded document store for Java
- nosql
- embedded-database
- documentdb
- android
A lightweight document-oriented NoSQL database written in pure Golang.
- nosql-database
- document-oriented-database
- golang
- json
Elixir embedded key/value database
Swift database - fast, simple and lightweight (iOS, macOS)
C# .NET NOSQL ( key value, object store embedded TextSearch SemanticSearch Vector layer ) ACID multi-paradigm database management system.