Lightweight, efficient, and self-contained Base 64 encoding/decoding library suitable for embedding in small projects, or systems with limited resources.

Why?

I need a microscopic Base64 encoding/decoding library to use on my embedded systems. This is that library, built with my own needs in mind.

Cross-platform in theory, should work on embedded systems (in my case, Risc-V) pretty well. If it doesn't, open an issue.

The speed of bsix depends mostly on your implementation. Below is the benchmark for my test implementation with little to no focus on performance.

#include "base64.h"
#include <stdio.h>
#include <stdlib.h>

int main() {
    const unsigned char data[] = "Hello, World!";
    size_t data_len = sizeof(data) - 1;

    char *encoded = base64_encode(data, data_len);
    if (!encoded) {
        fprintf(stderr, "Failed to encode data\n");
        return 1;
    }

    printf("Base64 Encoded: %s\n", encoded);

    free(encoded);
    return 0;
}

Available under the MIT License