Top 5 C++ sse2 Projects

fast_float

15 1,277 8.7 C++

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

6 1,194 9.2 C++

WHATWG-compliant and fast URL parser written in modern C++

Project mention: Parsing URLs in Python | news.ycombinator.com | 2024-03-16

...
can_ada is just the python bindings, largely generated via pybind11.
The actual project is at https://github.com/ada-url/ada

WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
simdutf

11 956 9.1 C++

Unicode routines (UTF8, UTF16, UTF32) and Base64: billions of characters per second using SSE2, AVX2, NEON, AVX-512, RISC-V Vector Extension. Part of Node.js and Bun.

Project mention: Glibc Buffer Overflow in Iconv | news.ycombinator.com | 2024-04-21

eve

6 848 8.9 C++

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

7 345 0.0 C++

fccf: A command-line tool that quickly searches through C/C++ source code in a directory based on a search string and prints relevant code snippets that match the query.
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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).