Repository Index

Very fast, high quality, platform-independent hashing algorithm.

🏅State-of-the-art learned data structure that enables fast lookup, predecessor, range searches and updates in arrays of billions of items using orders of magnitude less space than traditional indexes

• data-structures
• database
• cpp
• research

C++ implementation of a fast and memory efficient HAT-trie

• cpp
• trie
• hat-trie
• data-structures

Freestanding fast input/output for C++20

• cpp
• cxx
• input-output
• header-only

Fast, flexible and simple GUI.

C++ implementation of a fast hash map and hash set using hopscotch hashing

• cpp
• hash-map
• hash-table
• header-only

A lightweight high performance tensor algebra framework for modern C++

• tensors
• tensor-contraction
• multidimensional-arrays
• simd

A Fast Implementation of Random Forests

Rapid YAML - a library to parse and emit YAML, and do it fast.

• yaml
• json
• parser
• emitter

ThunderGBM: Fast GBDTs and Random Forests on GPUs

• cuda
• gpu
• gbdt
• random-forest

Blazing fast Apple Silicon inference engine optimized for Qwen & Nemotron. OpenAI + Anthropic API compatible. Built by folks from nace.ai

Multi-Modal Database replacing MongoDB, Neo4J, and Elastic with 1 faster ACID solution, with NetworkX and Pandas interfaces, and bindings for C 99, C++ 17, Python 3, Java, GoLang 🗄️

• acid
• database
• key-value-store
• document-database

Fast and Simple Email Client

Fast reading of delimited files

• r
• csv
• csv-parser
• tsv

Fast CSV parser and writer for Modern C++

• csv-parser
• single-threaded
• mit-license
• header-only

Fast Tetrahedral Meshing in the Wild

Lightweight, super fast C/C++ (& Python) library for sequence alignment using edit (Levenshtein) distance.

• sequence-alignment
• edit-distance
• levehnstein-distance
• library

Fast and flexible C++ library for working with OpenStreetMap data.

• openstreetmap
• c-plus-plus

Fast In-Memory Data Compression Algorithm (header-only C/C++) 540+MB/s compress, 3000+MB/s decompress, ratio% better than LZ4, Snappy, and Zstd@--1

• data-compression
• lz77
• compression
• compression-algorithm

Fast Static Symbol Table (FSST): efficient random-access string compression

Fast, convenient JSON serialization and parsing in C++

• cpp
• cpp20
• json
• cpp17

An unordered C++ data container providing fast iteration/insertion/erasure while maintaining pointer/iterator validity to non-erased elements regardless of insertions/erasures. Provides higher-performance than std:: library containers for high-modification scenarios with unordered data.

• container
• cpp
• template
• unordered

High-quality pro HDR image resizing / scaling C++ library, including a very fast, precise, SIMD Lanczos resizer (header-only C++)

• image-resizer
• image-upsizing
• image-scaling
• resizer-image

The fastest automatic differentiation library for C++, with Python bindings. Forward, adjoint and higher-order derivatives, checkpointing, Eigen support and JIT. Reproducible benchmarks against CppAD, Adept and autodiff.

• automatic-differentiation
• aad
• algorithmic-differentiation
• autodiff