DuckDB is a high-performance analytical database system
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A library that provides an embeddable, persistent key-value store for fast storage.
- database
- storage-engine
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.
Embeddable Postgres with real-time, reactive bindings.
A lightweight, lightning-fast, in-process vector database
- rag
- agent-skills
- embedded
- faiss
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.
the champagne of beta embedded databases
- incredibly-spicy
- database
- embedded-kv
- concurrent
javascript embeddable / in-memory database
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.
An embedded key-value database in pure Rust
- rust
Lightweight, fast and reliable key/value storage engine based on Bitcask.
- database
- kv-store
- golang
- data-structures
BuntDB is an embeddable, in-memory key/value database for Go with custom indexing and geospatial support
The AI-native database built for LLM applications, providing incredibly fast hybrid search of dense vector, sparse vector, tensor (multi-vector), and full-text.
- ai-native
- nearest-neighbor-search
- rag
- vector-search
H2 is an embeddable RDBMS written in Java.
Database for Android and JVM - first and fast, lightweight on-device vector database
Embeddable, replicated and fault-tolerant SQL engine.
A transactional, relational-graph-vector database that uses Datalog for query. The hippocampus for AI!
- database
- graph
- client-server
- cross-platform
A cloud native embedded storage engine built on object storage.
- database
- embedded-database
- lsm-tree
- object-storage
A simple, fast, embeddable, persistent key/value store written in pure Go. It supports fully serializable transactions and many data structures such as list, set, sorted set.
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.
- mysql
- embedded-database
- ai-agents
- copy-on-write
chDB is an in-process OLAP SQL Engine 🚀 powered by ClickHouse