Data

The Open Source Feature Store for AI/ML

Open-source search database for full-text, vector, and hybrid search with real-time indexing and SQL.

High-throughput synthetic and pretraining dataset sifter for TypeSafe Jev. Rust streaming core, Parquet and JSONL I/O, typed Choice/Score/Noul judgments, speculative fan-out, 24.0 rows/sec measured.

MacOS app written in Swift that bulk exports Apple Notes (including iCloud Notes) to a multitude of formats preserving note folder structure.

Scalable and efficient data transformation framework - backwards compatible with dbt.

A comprehensive guide to building a modern data warehouse with SQL Server, including ETL processes, data modeling, and analytics.

Sling is a CLI tool that extracts data from a source storage/database and loads it in a target storage/database.

The First Real-Time Search Analytics Database

Zero-ETL, infinite possibilities. Live query APIs, code & more with SQL. No DB required.

Open-source, self-hosted workspace for pages, databases and AI. One Node.js process with SQLite.

Native lakehouse experience in Postgres powered by DuckDB & DuckLake

A new SOTA for RAG — an original retrieval architecture and an open-source knowledge base for humans and agents.

Learn how to design, develop, deploy and iterate on production-grade ML applications.

Free Open-source AI SQL client that helps developers and data teams explore databases using natural language.

OpenFGA-to-PostgreSQL authorization compiler. Generates specialized SQL functions from .fga schemas that query your existing tables. Zero sync, always consistent.

lakeFS - Data version control for your data lake | Git for data

Database migrations. CLI and Golang library.

Hop Orchestration Platform

Data Contracts engine for the modern data stack. https://www.soda.io

Complete structured archive of every CIA World Factbook edition from 1990-2025. 281 countries, 36 years, 1M+ parsed data fields in SQL Server. Python ETL scripts included. Website created to allow users to explore the data without downloading. www.worldfactbookarchive.org

A simple terminal UI for PostgreSQL, written in Go with Bubble Tea

ktx is an executable context layer for data and analytics agents 🐙 Allow Claude Code, Codex, or other AI agents to query analytical databases accurately and with full context of your company

A curated list of awesome dbt resources

Python ETL framework for stream processing, real-time analytics, LLM pipelines, and RAG.

A distributed, fast open-source graph database featuring horizontal scalability and high availability

Your entire engineering context, deeply understood

The local-first database that runs on every JS runtime and replicates with your existing backend - no vendor, no lock-in - https://rxdb.info/

ApeCloud's Data Transfer Suite, written in Rust. Provides ultra-fast data replication between MySQL, PostgreSQL, Redis, MongoDB, Kafka and ClickHouse, ideal for disaster recovery (DR) and migration scenarios.

The database IDE for VS Code, Cursor, and Windsurf. 80+ databases: Postgres, MySQL, SQL Server, MongoDB, Snowflake, and more. AI queries, ER diagrams, SQL notebooks.

The open document intelligence platform for builders and hackers - DMS for the agentic world

Flowfile is a visual ETL tool and Python library combining drag-and-drop workflows with Polars dataframes. Build data pipelines visually, define flows programmatically with a Polars-like API, and export to standalone Python code. Perfect for fast, intuitive data processing from development to production.

A no-code RAG server that keeps answers in sync with your documents. Works with 8 vector databases. Built on Pathway.

Fancy stream processing made operationally mundane

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.

Maestro: Netflix’s Workflow Orchestrator

First open-source data discovery and observability platform. We make a life for data practitioners easy so you can focus on your business.

🧙 Build, run, and manage data pipelines for integrating and transforming data.

Beginner data engineering project - batch edition

Lightweight and extensible compatibility layer between dataframe libraries!

OLake - Fastest Databases, Kafka & S3 Replication to Apache Iceberg with Table optimization (Called OLake Fusion). ⚡ Efficient, quick and scalable data ingestion for real-time analytics. Supported sources : Postgres, MongoDB, MySQL, Oracle, MSSql, DB2, Kafka, S3.

🔥 A well-tested feature-rich modular Firebase implementation for React Native. Supports both iOS & Android platforms for all Firebase services.

Curso para aprender los fundamentos del lenguaje SQL y bases de datos relacionales desde cero y para principiantes.

Apache Hamilton helps data scientists and engineers define testable, modular, self-documenting dataflows, that encode lineage/tracing and metadata. Runs and scales everywhere python does.

An open source cybersecurity protocol for syncing decentralized graph data.

select * from logs; Tailpipe is an open source SIEM for instant log insights, powered by DuckDB. Analyze millions of events in seconds, right from your terminal.

Free, open-source SQL Server and Postgres performance monitoring. Collectors, real-time alerts, graphical plan viewer, MCP server for AI analysis. Supports SQL 2016-2025, Azure SQL, AWS RDS, Postgres, Aurora Postgres.

Empowering Data Intelligence with Distributed SQL for Sharding, Scalability, and Security Across All Databases.

A Scala 3 web framework. Direct-style. The case class is the source of truth. Deploy with one command.

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.

Dex lets your agent build your analytics.