ClickHouse® is a real-time analytics database management system

C++ based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)

LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values.

DuckDB is an analytical in-process SQL database management system

Carbon Language's main repository: documents, design, implementation, and related tools. (NOTE: Carbon Language is experimental; see README)

Cross-platform, customizable ML solutions for live and streaming media.

A modern replacement for Redis and Memcached

Cloud-native high-performance edge/middle/service proxy

FlatBuffers: Memory Efficient Serialization Library

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

Lightweight, Portable, Flexible Distributed/Mobile Deep Learning with Dynamic, Mutation-aware Dataflow Dep Scheduler; for Python, R, Julia, Scala, Go, Javascript and more

Abseil Common Libraries (C++)

Apache Arrow is the universal columnar format and multi-language toolbox for fast data interchange and in-memory analytics

Nix, the purely functional package manager

NoSQL data store using the Seastar framework, compatible with Apache Cassandra and Amazon DynamoDB

Approximate Nearest Neighbors in C++/Python optimized for memory usage and loading/saving to disk

Tiny cross-platform webview library for C/C++. Uses WebKit (GTK/Cocoa) and Edge WebView2 (Windows).

Drogon: A C++14/17/20 based HTTP web application framework running on Linux/macOS/Unix/Windows

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

Unsupervised text tokenizer for Neural Network-based text generation.

Cartographer is a system that provides real-time simultaneous localization and mapping (SLAM) in 2D and 3D across multiple platforms and sensor configurations.

A composable and fully extensible C++ execution engine library for data management systems.

This is the development repository for the OpenFHE library. The current version is 1.4.2 (released on October 20, 2025).

The analytical engine for TiDB and TiDB Cloud. Try free: https://tidbcloud.com/free-trial

Binding generator to wrap C++ for Python using LLVM.

Riegeli/records is a file format for storing a sequence of string records, typically serialized protocol buffers.

This site includes information related to PASMED, a wide-coverage relation extraction system for the whole MEDLINE.