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OpenSrc
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Databases open-source projects

OpenSrc lists 129 repositories about Databases with open issues for new contributors, and 64 of them are first-PR friendly. Between them they have 2,187 open good first issues and 1,747 help-wanted issues. The median welcome score is 75/100, and the best-scored right now are topoteretes/cognee, PRQL/prql and diesel-rs/diesel. Most are written in Rust, Java and TypeScript. Many also touch Machine Learning & AI and DevOps & Cloud.

129 repos by best score

Filter these in the directory

  • topoteretes/cognee

    Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory with…

    59good first issues+2 help wanted
    • Python
    • Field: Machine Learning
    • Field: Databases
    • Stars:31.2K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~23h
    Score98 out of 100 contributor score, very welcomingFirst-PR friendly

  • PRQL/prql

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

    7good first issues+20 help wanted
    • Rust
    • Field: Databases
    • Stars:10.9K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~30m
    Score90 out of 100 contributor score, very welcomingFirst-PR friendly

  • diesel-rs/diesel

    A safe, extensible ORM and Query Builder for Rust

    8good first issues+27 help wanted
    • Rust
    • Field: Databases
    • Stars:14.2K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~7h
    Score89 out of 100 contributor score, very welcomingFirst-PR friendly

  • trinodb/trino

    Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL…

    41good first issues
    • Java
    • Field: Databases
    • Field: Data Science
    • Stars:13.3K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~1h
    Score89 out of 100 contributor score, very welcomingFirst-PR friendly

  • lakehq/sail

    Drop-in Apache Spark replacement written in Rust, unifying batch processing, stream processing, and…

    19good first issues+34 help wanted
    • Rust
    • Field: Machine Learning
    • Field: Databases
    • Stars:3.4K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~27h
    Score89 out of 100 contributor score, very welcomingFirst-PR friendly

  • dentalpin/dentalpin

    The open source agentic dental software. Built for AI.

    21good first issues+28 help wanted
    • Python
    • Field: Machine Learning
    • Field: Databases
    • Stars:83
    • CONTRIBUTING
    • replies in ~31h
    Score89 out of 100 contributor score, very welcomingFirst-PR friendly

  • grafana/grafana

    The open and composable observability and data visualization platform. Visualize metrics, logs, and traces…

    21good first issues+13 help wanted
    • TypeScript
    • Field: Observability
    • Field: Data Science
    • Stars:77K
    • AGPL-3.0
    • CONTRIBUTING
    Score88 out of 100 contributor score, very welcomingFirst-PR friendly

  • cockroachdb/cockroach

    CockroachDB — the cloud native, distributed SQL database designed for high availability, effortless scale…

    52good first issues+1 help wanted
    • Go
    • Field: Databases
    • Field: DevOps
    • Stars:32.5K
    • CONTRIBUTING
    Score88 out of 100 contributor score, very welcomingFirst-PR friendly

  • beekeeper-studio/beekeeper-studio

    Modern and easy to use SQL client for MySQL, Postgres, SQLite, SQL Server, and more. Linux, MacOS, and…

    7good first issues+12 help wanted
    • TypeScript
    • Field: Databases
    • Field: OS
    • Stars:23.7K
    • CONTRIBUTING
    • replies in ~48m
    Score88 out of 100 contributor score, very welcomingFirst-PR friendly

  • marimo-team/marimo

    A reactive notebook for Python — run reproducible experiments, query with SQL, execute as a script, deploy as…

    4good first issues+15 help wanted
    • Python
    • Field: Data Science
    • Field: Machine Learning
    • Stars:22.9K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~8h
    Score88 out of 100 contributor score, very welcomingFirst-PR friendly

  • paradedb/paradedb

    One Postgres for your application data, full-text search, vector retrieval, and aggregations. Home of the…

    22good first issues
    • Rust
    • Field: Databases
    • Field: Data Science
    • Stars:9.3K
    • AGPL-3.0
    • CONTRIBUTING
    • replies in ~31h
    Score87 out of 100 contributor score, very welcomingFirst-PR friendly

  • serenedb/serenedb

    The First Real-Time Search Analytics Database

    46good first issues
    • C++
    • Field: Databases
    • Field: Data Science
    • Stars:844
    • Apache-2.0
    • CONTRIBUTING
    Score87 out of 100 contributor score, very welcomingFirst-PR friendly

  • iTwin/itwinjs-core

    Monorepo for iTwin.js Library

    27good first issues
    • TypeScript
    • Field: Databases
    • Field: Graphics
    • Stars:732
    • MIT
    • CONTRIBUTING
    • replies in ~25h
    Score87 out of 100 contributor score, very welcomingFirst-PR friendly

  • uyuni-project/uyuni

    Open-source systems management and configuration platform

    39good first issues+3 help wanted
    • Java
    • Field: OS
    • Field: Databases
    • Stars:587
    • GPL-2.0
    • CONTRIBUTING
    • replies in ~2d
    Score87 out of 100 contributor score, very welcomingFirst-PR friendly

  • risingwavelabs/risingwave

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

    51good first issues
    • Rust
    • Field: Databases
    • Field: Data Science
    • Stars:9.4K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~2d
    Score86 out of 100 contributor score, very welcomingFirst-PR friendly

  • ch-bas/cctv-camera-database

    Open database of 27,000+ CCTV camera specs across 220+ brands, with Frigate and ONVIF/RTS integration, CC0

    9good first issues+18 help wanted
    • JavaScript
    • Field: Databases
    • Field: Security
    • Stars:275
    • CONTRIBUTING
    • replies in ~7h
    Score86 out of 100 contributor score, very welcomingFirst-PR friendly

  • apache/datafusion

    Apache DataFusion SQL Query Engine

    25good first issues+14 help wanted
    • Rust
    • Field: Databases
    • Field: Data Science
    • Stars:9.4K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~12h
    Score85 out of 100 contributor score, very welcomingFirst-PR friendly

  • holistics/dbml

    Database Markup Language (DBML), designed to define and document database structures

    7good first issues+12 help wanted
    • JavaScript
    • Field: Databases
    • Stars:3.7K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~28h
    Score85 out of 100 contributor score, very welcomingFirst-PR friendly

  • tarantool/tarantool

    Get your data in RAM. Get compute close to data. Enjoy the performance.

    71good first issues
    • Lua
    • Field: Databases
    • Stars:3.7K
    • CONTRIBUTING
    Score85 out of 100 contributor score, very welcomingFirst-PR friendly

  • milvus-io/milvus

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

    33good first issues+13 help wanted
    • Go
    • Field: Databases
    • Field: Machine Learning
    • Stars:46.3K
    • Apache-2.0
    • CONTRIBUTING
    Score84 out of 100 contributor score, very welcomingFirst-PR friendly

  • alibaba/open-code-review

    Secure, fast, efficient, battle-tested at Alibaba's scale. Hybrid architecture code review tool…

    6good first issues+5 help wanted
    • Go
    • Field: Databases
    • Field: Machine Learning
    • Stars:42.4K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~5h
    Score84 out of 100 contributor score, very welcomingFirst-PR friendly

  • tursodatabase/turso

    A SQL database in Rust: SQLite-compatible, now also speaking Postgres (experimental). The LLVM of databases.

    18good first issues+41 help wanted
    • Rust
    • Field: Databases
    • Field: Embedded
    • Stars:24.4K
    • MIT
    • CONTRIBUTING
    Score84 out of 100 contributor score, very welcomingFirst-PR friendly

  • meilisearch/meilisearch

    A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.

    20good first issues+16 help wanted
    • Rust
    • Field: Databases
    • Field: Backend
    • Stars:59.4K
    • CONTRIBUTING
    • replies in ~30d
    Score83 out of 100 contributor score, very welcoming

  • phpmyadmin/phpmyadmin

    A web interface for MySQL and MariaDB

    53good first issues+92 help wanted
    • PHP
    • Field: Databases
    • Field: Web Frontend
    • Stars:7.9K
    • GPL-2.0
    • CONTRIBUTING
    • replies in ~18d
    Score83 out of 100 contributor score, very welcoming

  • cartography-cncf/cartography

    Cartography is a Python tool that pulls infrastructure assets and their relationships into a Neo4j graph…

    6good first issues+5 help wanted
    • Python
    • Field: Databases
    • Field: DevOps
    • Stars:4.1K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~2d
    Score83 out of 100 contributor score, very welcomingFirst-PR friendly

  • usemoss/moss

    The retrieval layer for production AI systems. Lightning-fast (<10ms) search without vector databases. Built…

    26good first issues+28 help wanted
    • Python
    • Field: Machine Learning
    • Field: DevOps
    • Stars:787
    • BSD-2-Clause
    • CONTRIBUTING
    • replies in ~6d
    Score83 out of 100 contributor score, very welcoming

  • pingcap/tidb

    TiDB is built for agentic workloads that grow unpredictably, with ACID guarantees and native support for…

    59good first issues+179 help wanted
    • Go
    • Field: Databases
    • Field: DevOps
    • Stars:40.6K
    • Apache-2.0
    • CONTRIBUTING
    Score82 out of 100 contributor score, very welcomingFirst-PR friendly

  • GreptimeTeam/greptimedb

    The open-source observability database. One columnar engine for metrics, logs, and traces, on object storage.

    19good first issues+13 help wanted
    • Rust
    • Field: Observability
    • Field: Databases
    • Stars:6.7K
    • Apache-2.0
    • CONTRIBUTING
    Score82 out of 100 contributor score, very welcomingFirst-PR friendly

  • lancedb/lancedb

    Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.

    16good first issues+7 help wanted
    • Rust
    • Field: Databases
    • Field: Machine Learning
    • Stars:11.6K
    • Apache-2.0
    • CONTRIBUTING
    Score81 out of 100 contributor score, very welcomingFirst-PR friendly

  • ydb-platform/ydb

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

    20good first issues
    • C++
    • Field: Databases
    • Field: DevOps
    • Stars:4.8K
    • Apache-2.0
    • CONTRIBUTING
    Score81 out of 100 contributor score, very welcomingFirst-PR friendly

Showing 30 of 129 repos