Simd GitHub Repositories (2026) · Open Source Tools

Easy function multiversioning for Rust

SIMD-accelerated columnar database for analytics — pure C, zero dependencies

Highly optimized inference engine for Binarized Neural Networks

High-performance pure C# arbitrary-precision arithmetic: BigInt, BigRational and correctly-rounded Real. No native dependencies.

A successor to the SIMD math library Unity.Mathematics, extending it to all C# numeric types while adding many new types and functions. Written entirely with hardware intrinsics, using Unity.Burst.

🐈‍⬛ A runtime for C++26 w/out libC or POSIX. Smaller binaries, only arena allocators, SIMD, stronger type safety than STL, and value-based errors!

Playing around "Less Slow" coding practices in Rust, from numerical micro-kernels to coroutines, ranges, and polymorphic state machines

Fast, memory-safe camera RAW decoder in Rust: ~40 formats, SIMD, GPU, WebAssembly, ICC colour management. CLI, C, C++, Python and JavaScript bindings.

Swift bindings for simdutf: SIMD-accelerated Unicode validation, conversion, and Base64 with configurable SwiftPM traits.

One of the World's Fastest .NET CSV Parsers. Modern, minimal, fast, zero allocation, reading and writing of separated values (`csv`, `tsv` etc.). Cross-platform, trimmable and AOT/NativeAOT compatible with blazing fast SIMD vectorized parsing.