Database Systems

For developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.

🔥 🔥 🔥 A Free & Self-hostable Airtable Alternative

MinIO is a high-performance, S3 compatible object store, open sourced under GNU AGPLv3 license.

Open Source realtime backend in 1 file

Distributed reliable key-value store for the most critical data of a distributed system

Free universal database tool and SQL client

ClickHouse® is a real-time analytics database management system

Next-generation ORM for Node.js & TypeScript | PostgreSQL, MySQL, MariaDB, SQL Server, SQLite, MongoDB and CockroachDB

Milvus is a high-performance, cloud-native vector database built for scalable vector ANN search

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.

DuckDB is an analytical in-process SQL database management system

📚 C/C++ 技术面试基础知识总结，包括语言、程序库、数据结构、算法、系统、网络、链接装载库等知识及面试经验、招聘、内推等信息。This repository is a summary of the basic knowledge of recruiting job seekers and beginners in the direction of C/C++ technology, including language, program library, data structure, algorithm, system, network, link loading library, interview experience, recruitment, recommendation, etc.

Automatic SQL injection and database takeover tool

The flexible backend for all your projects 🐰 Turn your DB into a headless CMS, admin panels, or apps with a custom UI, instant APIs, auth & more.

Drizzle ORM is an open-source TypeScript tool tracked for database systems signals, maintenance activity, and public release evidence.

CockroachDB — the cloud native, distributed SQL database designed for high availability, effortless scale, and control over data placement.

A scalable, distributed, collaborative, document-graph database, for the realtime web

Scalable datastore for metrics, events, and real-time analytics

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/

A modern replacement for Redis and Memcached

Open Source alternative to Algolia + Pinecone and an Easier-to-Use alternative to ElasticSearch ⚡ 🔍 ✨ Fast, typo tolerant, in-memory fuzzy Search Engine for building delightful search experiences

A flexible distributed key-value database that is optimized for caching and other realtime workloads.

AI-driven database tool and SQL client, The hottest GUI client, supporting MySQL, Oracle, PostgreSQL, DB2, SQL Server, DB2, SQLite, H2, ClickHouse, and more.

High-performance, scalable time-series database designed for Industrial IoT (IIoT) scenarios

Development at the speed of light

A fast, local first, reactive Database for JavaScript Applications https://rxdb.info/

OpenViking is an open-source context database designed specifically for AI Agents(such as openclaw). OpenViking unifies the management of context (memory, resources, and skills) that Agents need through a file system paradigm, enabling hierarchical context delivery and self-evolving.

A time-series database for high-performance real-time analytics packaged as a Postgres extension

Database diagrams editor that allows you to visualize and design your DB with a single query.

✨ The Next Gen Airtable Alternative: No-Code Postgres

Turso is an in-process SQL database, compatible with SQLite.

QuestDB is a high performance, open-source, time-series database

Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database​.

🚀🎉📚 APITable, an API-oriented low-code platform for building collaborative apps and better than all other Airtable open-source alternatives.

Embeddable Postgres with real-time, reactive bindings.

MCP Toolbox for Databases is an open source MCP server for databases.

World's most advanced database DevSecOps solution for Developer, Security, DBA and Platform Engineering teams. The GitHub/GitLab for database DevSecOps.

🔎 Open source distributed and RESTful search engine.

Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.

Redpanda is a streaming data platform for developers. Kafka API compatible. 10x faster. No ZooKeeper. No JVM!

PRQL is a modern language for transforming data — a simple, powerful, pipelined SQL replacement

YugabyteDB - the cloud native distributed SQL database for mission-critical applications.

Read-path sync engine for Postgres that handles partial replication, data delivery and fan-out.

Data Agent Ready Warehouse : One for Analytics, Search, AI, Python Sandbox. — rebuilt from scratch. Unified architecture on your S3.

Event streaming platform for agentic AI. Continuously ingest, transform, and serve event streams in real time, at scale.

Simple, Elastic-quality search for Postgres

Database backup tool (PostgreSQL, MySQL\MariaDB and MongoDB)

The open-source Observability 2.0 database. One engine for metrics, logs, and traces — replacing Prometheus, Loki & ES.

An intuitive spreadsheet-like interface that lets users of all technical skill levels view, edit, query, and collaborate on Postgres data directly—100% open source and self hosted, with native Postgres access control.

Cloud Database Manager

A lightweight next-gen data explorer - Postgres, MySQL, SQLite, MongoDB, Redis, MariaDB, Elastic Search, and Clickhouse with Chat interface

Build databases, automations, apps & agents with AI — no code. Open source platform available on cloud and self-hosted. GDPR, HIPAA, SOC 2 compliant. Best Airtable alternative.

YDB is an open source Distributed SQL Database that combines high availability and scalability with strong consistency and ACID transactions

Graph database optimized for fast analysis and real-time data processing. It is provided as an extension to PostgreSQL.

CrateDB is a distributed and scalable SQL database for storing and analyzing massive amounts of data in near real-time, even with complex queries. It is PostgreSQL-compatible, and based on Lucene.

Automated database platform for PostgreSQL® - Your own DBaaS.

HelixDB is an open-source graph-vector database built from scratch in Rust.

A transactional, relational-graph-vector database that uses Datalog for query. The hippocampus for AI!

TerminusDB is a distributed, collaborative database designed for building, sharing, versioning, and reasoning on structured data.

An immutable SQL database for application development, time-travel reporting and data compliance. Developed by @juxt

In-browser Postgres sandbox with AI assistance.

🚀 Private first self-hosted no code database & BaaS.

SQLSync is a collaborative offline-first wrapper around SQLite. It is designed to synchronize web application state between users, devices, and the edge.

A distributed SQLite server with MySQL wire compatible interface

GridDB is a next-generation open source database that makes time series IoT and big data fast,and easy.

Native macOS database client for MySQL, PostgreSQL, SQLite, MongoDB, Redis, and 15+ more. Free and open-source.

YTsaurus is a scalable and fault-tolerant open-source big data platform.

An open source headless CMS / real-time database. Powerful table editor, full-text search, and SDKs for JS / React / Svelte.

Infinispan is an open source data grid platform and highly scalable NoSQL cloud data store.

A lightweight, cross-platform database client for developers. Supports MySQL, PostgreSQL and SQLite. Hackable with plugins. Built for speed, security, and aesthetics.

PostgreSQL reengineered for multi-tenant apps

LadybugDB a graph database

PostgreSQL vector database extension for building AI applications

Epsilla is a high performance Vector Database Management System

Open source, cloud native, Postgres platform with copy-on-write branching and scale-to-zero

SDK that enables local-first and real-time reactive apps with embedded SQLite for JavaScript clients, including React Native and Web

Embeddable and distributed in-memory alternative to Redis.

TypeScript implementation of the DXOS protocols, SDK, toolchain and Composer.

Durable Streams API

The First Distributed Real-Time Search Analytics Database

An extensible, multi-database GUI client for macOS — add any database by implementing a single Swift protocol. Built for contributors.

Shared Memory Storage for Multi-Agent Systems

Cognitive memory database for AI agents — consolidates duplicates, detects contradictions, fades stale memories via temporal decay. Rust, AGPL, ships as library / MCP server / HTTP cluster.

A modern, lightweight database management tool. Create, manage, and run multiple database instances locally with an intuitive interface.

Embedded SQL OLAP in C++. Live views that re-parse only the bytes your CSVs grew by. Reads Parquet/CSV/JSON/Avro/Arrow/SQLite natively. 3.9× DuckDB on a 5-query warm batch. MIT.

AI-native database client powered by natural-language queries

Convex is an open-source tool tracked for database systems signals, maintenance activity, and public release evidence.