The local-first database that runs on every JS runtime and replicates with your existing backend - no vendor, no lock-in - https://rxdb.info/
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Simple and fast JSON database
Realm is a mobile database: a replacement for Core Data & SQLite
Embeddable Postgres with real-time, reactive bindings.
A lightweight, lightning-fast, in-process vector database
- rag
- agent-skills
- embedded
- faiss
The JavaScript Database, for Node.js, nw.js, electron and the browser
Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.
- approximate-nearest-neighbor-search
- image-search
- nearest-neighbor-search
- recommender-system
the champagne of beta embedded databases
- incredibly-spicy
- database
- embedded-kv
- concurrent
HelixDB is an OLTP graph database with native vector and full-text search built in Rust on Object Storage.
Realm is a mobile database: an alternative to SQLite & key-value stores
- mobile-database
- nosql-database
- realm-mobile-database
- realm
Lightweight, fast and reliable key/value storage engine based on Bitcask.
- database
- kv-store
- golang
- data-structures
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
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.
YapDB is a collection/key/value store with a plugin architecture. It's built atop sqlite, for Swift & objective-c developers.
An Embedded NoSQL, Transactional Database Engine
Ultra-fast SQL-like queries on Java collections
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).
Transactional schema-less embedded database used by JetBrains YouTrack and JetBrains Hub.
- embedded-database
- java
- kotlin
- key-value
SirixDB is an an embeddable, bitemporal, append-only database system and event store, storing immutable lightweight snapshots. It keeps the full history of each resource. Every commit stores a space-efficient snapshot through structural sharing. It is log-structured and never overwrites data. SirixDB uses a novel page-level versioning approach.
- xquery
- java
- temporal-data
- storage
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
Nornicdb is a distributed low-latency, Graph+Vector, Temporal MVCC with all sub-ms HNSW search, graph traversal, and writes. Using Neo4j Bolt/Cypher and qdrant's gRPC means you can switch with no changes while adding intelligent features like schemas, managed embeddings, reranking+llm, GPU accel, Auto-TLP, Policy-based Memory Decay, and MCP server.
- bolt
- cypher
- database
- enterprise-solutions
NoSQL embedded document store for Java
- nosql
- embedded-database
- documentdb
- android