A Linux SVG-based theme engine for Qt
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A simple C++ based RPC framework.
Unicode routines (UTF8, UTF16, UTF32) and Base64: billions of characters per second using SSE2, AVX2, NEON, AVX-512, RISC-V Vector Extension, LoongArch64, POWER. Part of Node.js, WebKit/Safari, Ladybird, Chromium, Cloudflare Workers, Ghostty and Bun.
- utf8
- utf16
- unicode
- simd
Terminal-based messaging client for Linux and macOS with Telegram, WhatsApp and Signal support
bsnes is a Super Nintendo (SNES) emulator focused on performance, features, and ease of use.
A SQLite extension for efficient vector search, based on Faiss!
- sqlite
- sqlite-extension
- vector-search
- faiss
Pragmatic microkernel-based OS with fully asynchronous I/O
- operating-system
- microkernel
- asynchronous-io
- posix-compatible
robot_localization is a package of nonlinear state estimation nodes. The package was developed by Charles River Analytics, Inc. Please ask questions on answers.ros.org.
Message passing based allocator
- allocator
- malloc
- memory-allocator
LadybugDB a graph database
- database
- graph
- cypher
- cypher-query-language
An Internet-Scale Database.
A client/server indexer for c/c++/objc[++] with integration for Emacs based on clang.
High performance physically based renderer in C++11
Laser Odometry and Mapping (Loam) is a realtime method for state estimation and mapping using a 3D lidar.
- velodyne
- ros
- loam-velodyne
- lidar
A collection of GICP-based fast point cloud registration algorithms
- point-cloud
- pcl
- gicp
- icp
Official repository of the SOCI - The C++ Database Access Library
- cplusplus
- database-library
- postgresql
- mysql
Modular node graph based noise generation library using SIMD, C++17 and templates
- noise
- noise-generator
- noise-algorithms
- simplex
Open source hot backup tool for InnoDB and XtraDB databases
C++-based high-performance parallel environment execution engine (vectorized env) for general RL environments.
- reinforcement-learning
- parallel-processing
- cpp17
- pybind11
Nix language server, based on nix libraries [maintainer=@inclyc,@takeokunn,@Aleksanaa]
Open-source compositing software. Node-graph based. Similar in functionalities to Adobe After Effects and Nuke by The Foundry.
- c-plus-plus
- vfx
- cross-platform
- openfx
UPnP Media Server for 2026: Stream your digital media through your home network and consume it on all kinds of UPnP supporting devices 📱💻📺
- upnp
- mediaserver
- upnp-av
- cmake
Nearest Neighbor Search with Neighborhood Graph and Tree for High-dimensional Data
- approximate-nearest-neighbor-search
- k-nearest-neighbors
- knn-search
- nearest-neighbors
The official C++ client API for PostgreSQL.
- postgresql
- postgres
- cplusplus
- cplusplus-17