1.ClickHouse / ClickHouse
ClickHouse® is a real-time analytics database management system
Ranked by Attention Score: stars gained over the last 90 complete days
1–100 of 346 by Attention Score · Aug 6, 2026 – Nov 3, 2026 (UTC)
ClickHouse® is a real-time analytics database management system
Qdrant - High-performance, massive-scale Vector Database and Vector Search Engine for the next generation of AI. Also available in the cloud https://cloud.qdrant.io/
The Prometheus monitoring system and time series database.
PostgreSQL backup tool with Point-In-Time-Recovery and restore verification
LMCache: Supercharge Your LLM with the Fastest KV Cache Layer
Milvus is a high-performance, cloud-native vector database built for scalable vector ANN search
Free universal database tool and SQL client
Free implementation of Play Services
A lightweight, lightning-fast, in-process vector database
Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.
Dolt – Git for Data
Search infrastructure for AI
Neon: Serverless Postgres. We separated storage and compute to offer autoscaling, code-like database branching, and scale to zero.
VictoriaMetrics: fast, cost-effective monitoring solution and time series database
Embeddable Postgres with real-time, reactive bindings.
🔎 Open source distributed and RESTful search engine.
Apache Doris is a real-time analytics and hybrid search database for AI agents.
Distributed reliable key-value store for the most critical data of a distributed system
The Prisma ORM: write your application in TypeScript with human-readable queries instead of SQL. Host your database on Prisma Postgres and your app on Prisma Compute.
TiDB is built for agentic workloads that grow unpredictably, with ACID guarantees and native support for transactions, analytics, and vector search. No data silos. No noisy neighbors. No infrastructure ceiling.
Streaming replication for SQLite.
Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)
Official successor to conduwuit
Cloud-native OSS search engine for observability
QuestDB is a high performance, open-source, time-series database
🧰 The Rust SQL Toolkit. An async, pure Rust SQL crate featuring compile-time checked queries without a DSL. Supports PostgreSQL, MySQL, and SQLite.
💡 All-in-one AI framework for semantic search, LLM orchestration and language model workflows
The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance for multi-dimensional analytics, real-time analytics, and ad-hoc queries. A Linux Foundation project.
FoundationDB - the open source, distributed, transactional key-value store
Portabase - Database backup & restore tool for PostgreSQL, MySQL, MsSQL, MariaDB, Firebird SQL, SQLite, MongoDB, Redis, Files and Docker Volume
Vitess is a database clustering system for horizontal scaling of MySQL.
Flyway by Redgate • Database Migrations Made Easy.
Docker-based local PHP+Node.js web development environments
Instant is the best backend for AI-coded apps. You get auth, permissions, storage, presence, and streams — everything you need to ship apps your users will love.
An open source multi-tool for exploring and publishing data
Graph database optimized for fast analysis and real-time data processing. It is provided as an extension to PostgreSQL.
Declarative schema migrations with schema-as-code workflows
Scalable datastore for metrics, events, and real-time analytics
One advanced and mature open-source MPP (Massively Parallel Processing) database. Open source alternative to Greenplum Database.
Distributed transactional key-value database, originally created to complement TiDB
A Minimalistic Wrapper for IndexedDB
Cloud Database Manager
OceanBase is the unified distributed database for the AI era — open-source, multi-model, one engine for your most demanding workloads.
A distributed, fast open-source graph database featuring horizontal scalability and high availability
The local-first database that runs on every JS runtime and replicates with your existing backend - no vendor, no lock-in - https://rxdb.info/
The agent platform built on sync.
Open source transactional distributed database. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure without compromising performance.
Where data access meets operational intelligence
Fast Open-Source Search & Clustering engine × for Vectors & Arbitrary Objects × in C++, C, Python, JavaScript, Rust, Java, Objective-C, Swift, C#, GoLang, and Wolfram 🔍
A Kubernetes operator for declarative database schema management (gitops for database schemas)
Highly available Prometheus setup with long term storage capabilities. A CNCF Incubating project.
A safe, extensible ORM and Query Builder for Rust
A modern text/numeric/geo-spatial/vector indexing library for go
The AI-native database built for LLM applications, providing incredibly fast hybrid search of dense vector, sparse vector, tensor (multi-vector), and full-text.
Redisson: Valkey & Redis Java Client and Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Extends Valkey and Redis with over 60 objects and services: Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Spring, Tomcat, Scheduler, JCache API, Hibernate, RPC, local cache..
A truly Open Source MongoDB alternative
Apache Kvrocks is a distributed key value NoSQL database that uses RocksDB as storage engine and is compatible with Redis protocol.
high-performance graph database for real-time use cases
Fast key-value DB in Go.
Self-hosted monitoring for Docker, Kubernetes and uptime. Single Go binary, no agent config, live alerts. Drop a container, your stack is monitored.
Seamless multi-primary syncing database with an intuitive HTTP/JSON API, designed for reliability
An powerful enhanced toolkit of MyBatis for simplify development
The official home of the Presto distributed SQL query engine for big data
A fast PostgreSQL Database Client Library for Python/asyncio.
Approximate Nearest Neighbors in C++/Python optimized for memory usage and loading/saving to disk
Next-generation full-text search library for Browser and Node.js
PostgreSQL zero-downtime migrations made easy
chDB is an in-process OLAP SQL Engine 🚀 powered by ClickHouse
Header-only C++/python library for fast approximate nearest neighbors
Type safe SQL builder with code generation and automatic query result data mapping
Database anonymization and test data management
A graph database that supports more than 100+ billion data, high performance and scalability (Include OLTP Engine & REST-API & Backends)
A Model Context Protocol server to connect to MongoDB databases and MongoDB Atlas Clusters.
Apache DataFusion Ballista Distributed Query Engine
Fast and exact implementation of the C++ from_chars functions for number types: 4x to 10x faster than strtod, part of GCC 12, MySQL, DuckDB, Chromium, Redis and WebKit/Safari
Deeplake is AI Data Runtime for Agents. It provides serverless postgres with a multimodal datalake, enabling scalable retrieval and training.
The open source Meme Search Engine and Finder. Free and built to self-host locally with Python, Ruby, and Docker.
Native PostgreSQL driver for the Rust programming language
Official library for RaBitQ vector quantization and approximate nearest-neighbor search, in C++ and Python.
:kangaroo: - PouchDB is a pocket-sized database.
🚌 The IK Analysis plugin integrates Lucene IK analyzer into Elasticsearch and OpenSearch, support customized dictionary.
Apache Solr open-source search software
A library for debugging android databases and shared preferences - Make Debugging Great Again
Apache OFBiz is an open source product for the automation of enterprise processes. It includes framework components and business applications for ERP, CRM, E-Business/E-Commerce, Supply Chain Management and Manufacturing Resource Planning. OFBiz provides a foundation and starting point for reliable, secure and scalable enterprise solutions.
Python CLI utility and library for manipulating SQLite databases
Gel supercharges Postgres with a modern data model, graph queries, Auth & AI solutions, and much more.
Roaring bitmaps in Go (golang), used by InfluxDB, Bleve, DataDog
Familiar asyncio ORM for python, built with relations in mind
Long-term, cross-project memory for AI coding agents. Your own Obsidian vault as the source of truth. Daemonless and without opaque databases, your memory belongs to you.
Efficient cache for gigabytes of data written in Go.
Golang driver for ClickHouse