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

• UpdatedFeb 20, 2026
• Java

qStudio - Free SQL Analysis Tool

• UpdatedDec 6, 2025
• Java

Companion files to kdb+ and q

• UpdatedDec 11, 2025
• HTML

MEV Bot and Flashbots Bundler written in q using kdb+

• UpdatedSep 15, 2022
• q

Stevan Apter-style trees in C++17

• UpdatedDec 17, 2023
• C++

Java API for KeePass Password Databases - Read/Write 2.x (File versions 3 and 4), Read 1.x

• UpdatedJun 23, 2025
• Java

Comprehensive Vector Data Tooling. The universal interface for all vector database, datasets and RAG platforms. Easily export, import, backup, re-embed (using any model) or access your vector data from any vector databases or repository.

• UpdatedFeb 16, 2026
• Jupyter Notebook

PyQ — Python for kdb+

• UpdatedDec 4, 2024
• Python

Source files for "Q Tips: Fast, Scalable and Maintainable Kdb+"

• UpdatedNov 18, 2024
• q

Source files for "Fun Q: A Functional Introduction to Machine Learning in Q"

• UpdatedOct 13, 2023
• q

Tutorials, puzzles, exercises, essays and other study resources for the q programming language

• UpdatedFeb 5, 2023
• q

KeePass Database loading, storing and manipulation framework

• UpdatedNov 13, 2025
• Objective-C

Jupyter kernel for kdb+

• UpdatedApr 4, 2025
• Jupyter Notebook

Real-time interactive database applications

• UpdatedSep 14, 2025
• Java

Latest source files for kdb+tick

• UpdatedAug 13, 2024
• q

The repository for the Machine Learning and Big Data with kdb+/q book by Novotny et al.

• UpdatedApr 2, 2024
• q

Allows the kdb+ interpreter to call Python functions

• UpdatedOct 9, 2025
• Python

kdb+/q interface library for Wind Quant API.

• UpdatedOct 21, 2022
• C++

Companion files to the kdb+ Knowledge Base

• UpdatedAug 13, 2024
• C

Source for documentation site

• UpdatedFeb 19, 2026
• HTML