GoKawiilGrobPaint
Somewhere between MS Paint and Paint.NET. Multiplatform by default.
Paint.NET doesn't run on macOS. GrobPaint fills that gap: a lightweight image editor with layers, blend modes, and selection tools, built with web technologies and a tiny Python backend. The goal isn't to clone Paint.NET or compete with Photoshop. It's to have the tools you actually need without the bloat.
Features
Layers - add, delete, duplicate, merge, reorder, per-layer opacity and blend modes (16 modes)
- add, delete, duplicate, merge, reorder, per-layer opacity and blend modes (16 modes) Tools - Pencil, Brush, Eraser, Fill, Eyedropper, Line, Rectangle, Ellipse, Text, Select, Magic Wand, Move, Rotate, Scale, Mirror
- Pencil, Brush, Eraser, Fill, Eyedropper, Line, Rectangle, Ellipse, Text, Select, Magic Wand, Move, Rotate, Scale, Mirror Selection - rectangular and magic wand with configurable tolerance, copy/cut/paste, crop to selection
- rectangular and magic wand with configurable tolerance, copy/cut/paste, crop to selection Color - HSV picker, RGB/Hex input, alpha channel, palettes (Lospec 500, PICO-8), swap primary/secondary
- HSV picker, RGB/Hex input, alpha channel, palettes (Lospec 500, PICO-8), swap primary/secondary Canvas - zoom (scroll wheel, pinch, keyboard), pan (space+drag, middle-click, trackpad), fit-to-view, grid overlay
- zoom (scroll wheel, pinch, keyboard), pan (space+drag, middle-click, trackpad), fit-to-view, grid overlay File I/O - PNG, JPEG, BMP, GIF; native .gbp project format preserves layers as a ZIP archive
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