InkForge

What InkForge is

InkForge is a free, open-source raster drawing app for Linux, macOS, and Windows. Its GPU-backed canvas combines a stamp-based brush engine with six procedural texture tips, pen-pressure controls for size and opacity, selection tools, and stroke stabilization. Artists can use unlimited layers, twelve blend modes, clipping masks, and non-destructive layer effects. For animation, its frame-by-frame timeline supports duplicating frames, onion-skinning, adjustable FPS, and GIF or WebM export. Native .inkforge projects retain layers and frames; the app also exports PNG, JPEG, and TIFF. An AI panel lists fourteen modes, including style transfer, sketch-to-painting, inpainting, and background removal. AI generation can connect to Gemini or Replicate with the user’s own key, or to a local ComfyUI graph. The maker says keys are stored locally and the ComfyUI path stays on the machine. The download section lists Windows 10+ and macOS 13+ requirements. The maker describes the cross-platform build as under active development and the native macOS version as the original Swift implementation.