Unicode GitHub Repositories (2026) · Open Source Tools

A modern formatting library

Encyclopedia of Unicode characters

Terminal security for developers and AI agents. Intercepts homograph URLs, pipe-to-shell, ANSI injection, obfuscated payloads, data exfiltration, and malicious AI skills/configs before they execute.

Modern C++ Terminal Emulator

Truly universal encoding detector in pure Python.

A library that detects and filters common unicode confusables/homoglyphs.

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.

Shorten URLs using invisible spaces

Provides an object-oriented API to strings and deals with bytes, UTF-8 code points and grapheme clusters in a unified way

✏︎ Curated list about digital typography 🔥

A Unicode canvas for humans and AI. Draw diagrams, interfaces, and slides as editable text.

A Twig extension for Symfony String

Java Emoji (JEmoji) is a lightweight, fast and auto generated emoji library for Java with the purpose to improve and ease working with emojis

Emoji images and names.

Terminal Unicode Explorer 🪄

FFI wrappers for ICU. MRI extension with the dynamic C library.

Unicode Character Finder

Swift bindings for simdutf: SIMD-accelerated Unicode validation, conversion, and Base64 with configurable SwiftPM traits.

A GUI tool that allows you to validate the text encoding of one or more files. Modified from https://encodingchecker.codeplex.com/

Unicode Normalization Forms