An encoding conversion library between different character encodings. [GPL]
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📚 single header utf8 string functions for C and C++
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.
a clean C library for processing UTF-8 Unicode data
Unicode Algorithms Implementation for C/C++