AutoDraw might be a bit more popular than Karbon. We know about 1 link to it since March 2021 and only 1 link to Karbon. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Similarly, Karbon (part of the Calligra suite) absorbed the suite's dedicated flowchart tool, and is pretty functional for this purpose, but it's primarily developed for Linux. While they have Windows installers, they're not the easiest to find and aren't directly supported. Source: about 2 years ago
Turn to AutoDraw at http://autodraw.com Simply start sketching, the AI tool will identify what you're trying to draw and provide improved alternatives. Say goodbye to your bad drawings, you can now create stunning sketches with ease! - Source: dev.to / about 1 year ago
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Sketch - Professional digital design for Mac.
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Vector Magic - Easily convert JPG, PNG, BMP, GIF bitmap images to SVG, EPS, PDF, AI, DXF vector images with real full-color tracing, online or using the desktop app!
Gpaint - Gpaint is a small scale designing and painting program for the GNOME-based desktop environment.
Adobe Illustrator - Adobe Illustrator is a vector graphics editor.