41+ Embedded Databases Ranked & Compared

Fast key-value storage library by Google providing ordered mappings with LSM-tree architecture

Fast in-process analytical database with rich SQL support and zero dependencies

High-performance embeddable key-value store optimized for fast storage on SSDs

Simple and fast JSON database for small projects and prototyping

In-process SQL database compatible with SQLite, written in Rust with vector search and CDC support

Ultra-fast mobile key-value storage powered by mmap and protobuf, built by WeChat

The database that syncs -- an open-source JavaScript database inspired by CouchDB for offline-first apps

Fast, embeddable key-value database written in pure Go with LSM tree and value log separation

Embeddable WASM Postgres under 3MB with reactivity and live sync

Minimalistic IndexedDB wrapper for offline-first web apps with real-time sync

SQLite compiled to JavaScript and WebAssembly via Emscripten for in-browser SQL databases

Reactive and asynchronous database for high-performance React and React Native apps

Cross-platform database framework by WeChat with ORM, encryption, corruption recovery, and full-text search

Open-source multimodal vector database built on the Lance columnar format with local-first deployment

The most widely deployed embedded SQL database engine

Lightweight embedded .NET NoSQL document database stored in a single file

Lightweight in-memory key-value cache for Go with expiration and cleanup

Lightweight JavaScript SQL database for browser and Node.js with Excel and JSON support

Super fast in-memory JavaScript document-oriented database for browser and Node.js

Pure Go implementation of LevelDB key-value store with LSM-tree storage

High-performance LSM key-value store in Go, powering CockroachDB as its storage engine

Embedded Java database engine providing concurrent Maps, Sets, and Queues backed by disk or off-heap memory

Lightweight, fast, and reliable embedded key-value storage engine based on the Bitcask model

Embeddable in-memory key-value database for Go with custom indexing and geospatial support

Fast, embeddable Java RDBMS with browser-based console and PostgreSQL compatibility mode

Extremely fast, fully async NoSQL database for Flutter with powerful queries and full-text search

Embeddable multi-backend SQL engine that runs anywhere from browsers to servers

Ultra-fast memory-mapped embedded key-value store with full ACID transactions and zero-copy reads

Embedded in-process OLAP SQL engine powered by ClickHouse for Python analytics

Embeddable columnar database in Go using Apache Arrow and Parquet for observability workloads

Ultra-small-footprint in-memory embedded database for real-time and mission-critical applications

Real-time embedded database with time-series and streaming for IoT and edge AI devices

High-performance SQL:2003 database engine for Delphi with embedded and client-server modes

Edge-optimized on-device database with vector search for mobile, IoT, and embedded AI applications

Fast and compact Java object database with built-in JPA and JDO support

Ultra-small-footprint embedded relational database for IoT and mission-critical edge applications

Fast, reactive mobile database designed as a modern replacement for Core Data and SQLite

Fully managed embedded .NET database engine with T-SQL compatibility in a single assembly