Inkscape

Inkscape is a professional, free, open source vector graphics editor available on Windows, macOS, and Linux. It is the leading open source alternative to Adobe Illustrator for creating logos, icons, illustrations, typography, technical drawings, and web graphics.

Inkscape supports the full SVG specification, including gradients, patterns, markers, clones, and filters. It also handles bitmaps, has powerful path operations, a flexible text tool, and an extensible plug-in system in Python. Native formats include SVG, SVGZ, PDF, EPS, and AI (import), with PNG, PDF, and PostScript export.

Released under GPL-3.0 and developed by a global community, Inkscape is a strong fit for designers, illustrators, and engineers who want a full-featured vector editor without a subscription or platform lock-in.