sispaint

sispaint is a free, open-source raster graphics editor designed for digital painting and illustration. It provides a focused workflow for artists, with support for layers, adjustable brush engines, and non-destructive editing workflows. The project aims to balance performance with a clean, approachable user interface suitable for both beginners and experienced artists.

Key features include a customizable brush system with pressure and tilt sensitivity on compatible devices, layer-based editing with blend modes, selection and transform tools, a range of built-in filters and color adjustment options, and export to common raster formats such as PNG and JPG, as well as layered project files for preservation. It also supports color management and scriptable automation through a lightweight plugin architecture.

sispaint is developed by a community of volunteers and is released under an open-source license. The code is hosted on a public repository, enabling contributions, issue tracking, and documentation. It runs on Windows, macOS, and Linux, and aims to be device-agnostic with support for graphics tablets and pen input.

User reception has been positive among hobbyists and indie artists, citing its simplicity and extensibility as strengths. The project maintains an active release cycle and a growing ecosystem of extensions and tutorials.

See also: List of raster graphics editors.