SaaSHub helps you find the best software and product alternatives Learn more →
Top 19 C++ Avx Projects
-
thorium
Chromium fork named after radioactive element No. 90. Windows and MacOS/Raspi/Android/Special builds are in different repositories, links are towards the top of the README.md.
-
InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
-
-
Thanks for the added context on the builds! As "foreign" BW player and fellow speech processing researcher, I agree shallow contextual biasing should help. While not difficult to implement, most generally available ASR solutions don't make it easy to use. There's a PR in ctranslate2 implementing the same feature so that it could be exposed in faster-whisper: https://github.com/OpenNMT/CTranslate2/pull/1789
-
xsimd
C++ wrappers for SIMD intrinsics and parallelized, optimized mathematical functions (SSE, AVX, AVX512, NEON, SVE, WebAssembly, VSX, RISC-V))
Thanks, that's an important caveat!
> Meanwhile xsimd (https://github.com/xtensor-stack/xsimd) has the feature level as a template parameter on its vector objects
That's pretty cool because you can write function templates and instantiate different versions that you can select at runtime!
-
Simd
C++ image processing and machine learning library with using of SIMD: SSE, AVX, AVX-512, AMX for x86/x64, NEON for ARM. (by ermig1979)
-
kfr
Fast, modern C++ DSP framework, FFT, Sample Rate Conversion, FIR/IIR/Biquad Filters (SSE, AVX, AVX-512, ARM NEON, RISC-V RVV)
Project mention: Show HN: KFR 7 – major update for C++ DSP library | news.ycombinator.com | 2025-11-17 -
DirectXMath
DirectXMath is an all inline SIMD C++ linear algebra library for use in games and graphics apps
-
Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
-
-
Here is a bunch of simple examples: https://github.com/jfalcou/eve/blob/fb093a0553d25bb8114f1396...
I personally think we have the following strenghs:
* Algorithms. Writing SIMD loops is very hard. We give you a lot of ready to go loops. (find, search, remove, set_intersection to name a few).
- Project mention: Hlslpp: Math library using HLSL syntax with multiplatform SIMD support | news.ycombinator.com | 2025-06-11
-
-
MIPP
Portable wrapper for SIMD and vector instructions written in C++11. Compatible with NEON, SSE, AVX, AVX-512 and SVE (length specific).
-
Jsonifier
A few classes for extremely fast json parsing/serializing in modern C++. Possibly the fastest json parser in C++. Possibly the fastest json serializer in C++. (by RealTimeChris)
Project mention: Achieving a 600% Performance Improvement in String-Literal Comparisons | news.ycombinator.com | 2025-02-18 -
-
-
VectorizedKernel
Running GPGPU-like kernels on CPU with auto-vectorization for SSE/AVX/AVX512 SIMD Architectures
-
-
-
-
SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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).
C++ Avx discussion
C++ Avx related posts
-
Show HN: KFR 7 – major update for C++ DSP library
-
C Is Not Suited to SIMD
-
Expressive Vector Engine – SIMD in C++
-
hello, maybe i am back for a while
-
SIMD Everywhere Optimization from ARM Neon to RISC-V Vector Extensions
-
The Case of the Missing SIMD Code
-
Numerical Computing in C++ Discussion
- A note from our sponsor - SaaSHub www.saashub.com | 23 Dec 2025
Index
What are some of the best open-source Avx projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | thorium | 6,614 |
| 2 | highway | 5,205 |
| 3 | CTranslate2 | 4,197 |
| 4 | xsimd | 2,565 |
| 5 | Simd | 2,223 |
| 6 | kfr | 1,823 |
| 7 | DirectXMath | 1,730 |
| 8 | Vc | 1,512 |
| 9 | eve | 1,279 |
| 10 | hlslpp | 989 |
| 11 | std-simd | 631 |
| 12 | MIPP | 517 |
| 13 | Jsonifier | 90 |
| 14 | MandelbrotSSE | 88 |
| 15 | peakperf | 71 |
| 16 | VectorizedKernel | 9 |
| 17 | ThinkingInSimd | 5 |
| 18 | fpng-java | 2 |
| 19 | fractals | 1 |
Sponsored
InfluxDB – Built for High-Performance Time Series Workloads
InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
www.influxdata.com