Mojibake – A low-level Unicode library written in C

In plain words

Mojibake is a low-level Unicode library written in C, distributed as two amalgamation files. It implements major Unicode algorithms including normalization, case conversion, text segmentation, bidirectional text handling, collation, and confusable character detection. The library is tested across Linux, macOS, FreeBSD, OpenBSD, NetBSD, and Windows 11. Developers can explore its functionality through a WASM demo and access full documentation on the project website.

written from the facts on this page · September 2026

From the sources

Mojibake is a fast, self-contained Unicode 18 library for C11 and C++17.

Add standards-compliant normalization, segmentation, casing, collation, and more to any C project with a single source file and header. You don't need to install anything. There are two files ( mojibake.c , mojibake.h ) to add to your C/C++ project. Download it here mojibake-amalgamation-035.zip . Examples of normalization, characters count and NFKC casefold. # include <stdio.h> # include <string.h> # include "mojibake.h" void print_string ( const char *input, size_t length) ; int main ( int argc, char * const argv[]) { const char *input = "Cafe\xCC\x81" ; size_t length = strlen (input); mjb_result result; // Normalize example: in NFC e + ◌́ -> é (U+00E9) if (mjb_normalize(input, length,…from mojibake.zaerl.com

In the maker’s words, at launch

I've written Mojibake because I don't like the other Unicode libraries for Unicode support. It consists of only two amalgamation files: mojibake.h and mojibake.c. I've added all the most important Unicode algorithms, such as normalization, case conversion, segmentation, bidirectional text, collation, confusable, and…

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