aklomp/base64

Health v2 · maintenance only

Adoption not part of the score

1019 stars · 178 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A fast Base64 stream encoder/decoder library written in C99 with SIMD acceleration (AVX2, AVX512, NEON, SSE) and optional OpenMP support. It provides streaming and length-delimited string APIs, is threadsafe, and performs runtime CPU feature detection on x86.

Use cases

• encode and decode base64 data at high speed in C
• base64 encode large streams of data efficiently
• SIMD-accelerated base64 for x86 and ARM
• embed a fast base64 codec in a C or C++ project
• parallel base64 encoding with OpenMP
• base64 encoding without dynamic memory allocation

When to choose

• you need maximum base64 throughput in C/C++
• you process large volumes of base64 data on x86 or ARM
• you need a threadsafe, allocation-free, pedantic C99 library

When to avoid

• you just need occasional base64 in a high-level language with built-in support
• you need a command-line base64 utility rather than a library
• you need other encodings like base32 or base85

Facets

library · maturity active

serialization compression developer-tools performance files windows cpp c base64 simd c99 encoding decoding openmp streaming linux macos

Member repositories

For agents

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