PikoPixel

The application provides a free, open‑source environment for creating and editing pixel‑art images on macOS and other Unix‑like systems such as Linux and BSD through the GNUstep framework. It offers a straightforward interface with features that include unlimited undo, multiple layers, and customizable canvas backgrounds, allowing artists to iterate freely without losing work. Hotkey‑activated popup panels give quick access to tools, while the editor supports linear (gamma‑correct) color blending and the export of upscaled images for higher‑resolution output.

Designed for both hobbyists and professional pixel‑art creators, the software runs on a range of hardware architectures, including PPC/Intel and ARM64, and is packaged as disk images for macOS and AppImages for Linux. Source code is available for compilation with Xcode or GNUstep‑make, and the project is released under the GNU Affero General Public License v3.