google/highway
Performance-portable, length-agnostic SIMD with runtime dispatch
About the project
A C++ library of portable SIMD intrinsics: one codebase targets x86 (AVX2/AVX512), ARM NEON, WASM and more, with runtime instruction-set dispatch. Aimed at engineers who need performance without tying code to a specific CPU.
Useful for
- Speed up image or video processing by replacing scalar loops with vector operations
- Build a cross-platform library with a single codebase for x86, ARM and WASM
- Add runtime dispatch so the app picks the best SIMD instruction set on each device
README summarized by DeepSeek V4.1 Flash. Details may be inaccurate.
Why it’s trending
- 2 stars so far today, about 3 expected by the end of the day.
- The spike has held for 2 days in a row — not a one-off blip.
Stars per day
Bars are daily stars, the line is the usual pace. Red marks spike days.
Numbers
- Total stars
- 5,859
- Stars in a day
- 3
- Forks
- 473
- Issues and pull requests
- 3,391
- Watchers
- 54
- Language
- C++
- Latest release
- 1.4.0 · April 23, 2026
- Created
- September 6, 2019
- Last push
- September 18, 2026
Star trust
Growth looks organic: forks and discussion are in line with active projects, and stars arrive unevenly, the way people give them.
These are heuristics, not a verdict: we judge by the repository’s behavior, not by a list of stargazers.
Spotted in
- September 18, 2026GitHub Trending C++ today: #5, +21 stars
- September 17, 2026GitHub Trending C++ today: #5, +21 stars
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