These can be projects written in Zig, or projects that support Zig. Feel free to add yours (or someone else's) here!

• alzette - Implementation of the Alzette box and the CRAX block cipher in Zig.
• Aro - A C compiler written in Zig.
• BamOS - An operating system kernel written in Zig.
• benice - Apply CPU and I/O policies on system processes.
• Black Shades - A psychic bodyguard FPS game.
• Bun - JavaScript runtime.
• buzz - A small/lightweight statically typed scripting language.
• capy - Cross-platform library for easily making true native GUIs in Zig.
• charm - A tiny, self-contained cryptography library, implementing authenticated encryption and keyed hashing.
• cova - Commands, Options, Values, Arguments. A simple yet robust cross-platform command-line argument parsing library for Zig.
• dvui - Immediate Zig GUI for Apps and Games.
• embed-dir - A small Zig library for embedding directory trees with @embedFile.
• flags - An easy, cross-platfrom command-line argument parsing library.
• flow - Flow Control: a programmer's text editor.
• Fundude - Gameboy emulator running in wasm.
• Ghostty - Ghostty is a fast, feature-rich, and cross-platform terminal emulator that uses platform-native UI and GPU acceleration.
• Kiesel - A JavaScript engine written in Zig.
• Lappland - A dead simple diceware generator.
• Liacomfa_N - "Lion Algoritmo de Compresion en Fase | Lion Phase Compression Algorithm" Algorithm for compression with a reduction of 70% to 80% and integrating Python.
• libffi - libffi with a Zig build script.
• libqt6zig - Qt 6 bindings for Zig.
• levee - Statusbar for the river wayland compositor.
• LoLa - Script language written in pure Zig.
• Mach engine - Game engine & graphics toolkit for the future.
• Matrix Utils - Matrix manipulation and utility library.
• Mime Support MIME (HTTP Media Types) parse in Zig.
• Mini Pixel - A tiny pixel art editor.
• nanovg-zig - Rewrite of NanoVG in Zig.
• ncdu - NCurses Disk Usage.
• neue - (currently pre-alpha) A suite of tools for working with fonts written in Zig.
• oxid - arcade-style game where you fight waves of monsters in a fixed-screen maze.
• pluto - An x86 kernel, with plans to port it to x86_64, arm and aarch64.
• PrismJS - JavaScript based syntax highlighting for web pages supports Zig.
• QML-zig - QML bindings for the Zig programming language.
• river - A dynamic wayland compositor.
• scc - code line and complexity counter which has Zig support.
• scritcher - Glitch art scripting language.
• SDL Template - A bare bones game project template with SDL configured and ready to go.
• Sig - A Solana validator client implementation written in Zig.
• sudokuinzig - A basic sudoku solver.
• tinyfx - Mid-level OpenGL rendering library in C with Zig wrapper.
• TigerBeetle - A purpose built accounting database for high throughput, safety and durability.
• TinyVG - A tiny vector graphics format. SDK and renderer is implemented in Zig.
• TM35-Metronome - Tools for modifying and randomizing Pokémon games.
• tofurkey - a tool for distributed sync of Linux TCP Fastopen key rotations.
• Tzigame - A collection of libraries for video game development in Zig.
• uscope - A native, graphical debugger for Linux.
• yazap - Command-line argument parser for zig which supports flags, subcommand and nested subcommands out of the box.
• YieArKUNGFUZig - A Yie Ar Kung-Fu clone created in Zig with raylib.
• zalgebra - Linear algebra library for games and computer graphics.
• zenith - Minimal text editor with familiar key bindings.
• zerve - Simple framework for writing web services and web apps.
• zf - commandline fuzzy finder that prioritizes matches on filenames.
• zig-args - Alternative command-line parser, uses struct as argument template.
• zig-clap - A library for parsing command-line arguments.
• zig-cli - A library for building command-line applications.
• zig-learning - A bunch of links to blog posts, articles, videos, etc for learning Zig.
• zig-sdk - An MSBuild SDK for building Zig, C, and C++ projects using the Zig compiler.
• ZigGBA - Work in Progress SDK to write Game Boy Advance in Zig.
• Ziggy Pydust - A framework for writing and packaging native Python extension modules written in Zig.
• zigimg - Library to read (and soon write) image files.
• zigmod - A Zig package manager.
• zigup - Download and manage zig compilers.
• zigwin32 - Complete autogenerated bindings for Win32.
• zinc - Zinc is a framework written in pure Zig.
• zioom - A handy cd helper.
• zls - A powerful language server for Zig, written in Zig.
• ztags - Generate tags files for Zig source code.
• zyg - Pathtracer written in Zig.
• zigcat - A Lightweight HTTP Web Server.
• zignal - Image processing library.
• zimdjson - Parsing gigabytes of JSON per second. Zig port of simdjson with fundamental features.

If a project in the above list has been abandoned for over 6 months, you are welcome to edit this wiki and delete it from this list.

You can also check out awesome-zig, another similar list of Zig projects.