C++ Neon

Open-source C++ projects categorized as Neon
Simd Avx Avx512 Avx2 Sse

Top 19 C++ Neon Projects

  1. simdjson

    Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks

    Project mention: GigaToken: ~1000x faster Language model tokenization | news.ycombinator.com | 2026-07-22
  2. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

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  3. highway

    Performance-portable, length-agnostic SIMD with runtime dispatch

    Project mention: Rust SIMD on the GPU | news.ycombinator.com | 2026-08-10
  4. mace

    MACE is a deep learning inference framework optimized for mobile heterogeneous computing platforms.

  5. CTranslate2

    Fast inference engine for Transformer models

    Project mention: Adding 70-language translation to an image API without paying per word | dev.to | 2026-06-09

    Runtime: CTranslate2 with int8 quantization. This is the key piece. It shrinks the model to ~1.3 GB and runs CPU inference fast. Do not run raw transformers on CPU for this.

  6. xsimd

    C++ wrappers for SIMD intrinsics and parallelized, optimized mathematical functions (SSE, AVX, AVX512, NEON, SVE, WebAssembly, VSX, RISC-V))

    Project mention: xsimd: C++ Wrappers for SIMD Intrinsics | news.ycombinator.com | 2026-04-16
  7. Simd

    C++ image processing and machine learning library with using of SIMD: SSE, AVX, AVX-512, AMX for x86/x64, NEON, SVE for ARM, HVX for Hexagon (by ermig1979)

  8. fast_float

    Fast and exact implementation of the C++ from_chars functions for number types: 4x to 10x faster than strtod, part of GCC 12, MySQL, DuckDB, Chromium, Redis and WebKit/Safari

    Project mention: fast_float VS str2num - a user suggested alternative | libhunt.com/r/fast_float | 2026-06-06
  9. simdutf

    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.

    Project mention: How fast can browsers process base64 data? | news.ycombinator.com | 2025-12-05
  10. ada

    WHATWG-compliant and fast URL parser written in modern C++, part of Internet Archive, Node.js, Clickhouse, Redpanda, Kong, Telegram, Adguard, Datadog and Cloudflare Workers.

    Project mention: Ada: Whatwg-compliant and fast URL parser written in modern C++ | news.ycombinator.com | 2026-05-30
  11. DirectXMath

    DirectXMath is an all inline SIMD C++ linear algebra library for use in games and graphics apps

  12. Vc

    SIMD Vector Classes for C++

    Project mention: Vc: SIMD Vector Classes for C++ | news.ycombinator.com | 2026-05-28
  13. sse2neon

    A translator from Intel SSE intrinsics to Arm/Aarch64 NEON implementation

    Project mention: Apple will phase out Rosetta 2 in macOS 28 | news.ycombinator.com | 2025-10-28

    Every port I've done to a new hardware or software platform has shaken loose at least a handful of bugs or assumptions that are well worth ironing out. And in the case of a port to Apple Silicon, you get a very fast development environment at the end of it. This library also helped with 90% of the work:

    https://github.com/DLTcollab/sse2neon

  14. eve

    Expressive Vector Engine - SIMD in C++ Goes Brrrr (by jfalcou)

    Project mention: Eve: Expressive Vector Engine – SIMD in C++ Goes Brrrr | news.ycombinator.com | 2026-04-09
  15. libsimdpp

    Portable header-only C++ low level SIMD library

  16. hlslpp

    Math library using HLSL syntax with multiplatform SIMD support

  17. std-simd

    std::experimental::simd for GCC [ISO/IEC TS 19570:2018]

  18. MIPP

    Portable wrapper for SIMD and vector instructions written in C++11. Compatible with NEON, SSE, AVX, AVX-512 and SVE (length specific).

  19. ParallelReductionsBenchmark

    Thrust, CUB, TBB, AVX2, AVX-512, CUDA, OpenCL, OpenMP, Metal, and Rust - all it takes to sum a lot of numbers fast!

    Project mention: Fork Union: Beyond OpenMP in C++ and Rust? | news.ycombinator.com | 2025-09-28

    I was asked this a few months back but don’t have the measurements fresh anymore. In general, I think TBB is one of the more thorough and feature-rich parallelism libraries out there. That said, I just found a comparable usage example in my benchmarks, and it doesn’t look like TBB will have the same low-latency profile as Fork Union: https://github.com/ashvardanian/ParallelReductionsBenchmark/...

  20. fractals

    Mandelbrot renderer with SIMD (NEON/AVX) acceleration. (by alademm)

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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Index

What are some of the best open-source Neon projects in C++? This list will help you:

# Project Stars
1 simdjson 24,147
2 highway 5,737
3 mace 5,039
4 CTranslate2 4,615
5 xsimd 2,730
6 Simd 2,261
7 fast_float 2,083
8 simdutf 1,921
9 ada 1,789
10 DirectXMath 1,784
11 Vc 1,540
12 sse2neon 1,527
13 eve 1,356
14 libsimdpp 1,300
15 hlslpp 1,134
16 std-simd 653
17 MIPP 529
18 ParallelReductionsBenchmark 119
19 fractals 1

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