Pencil

Free open-source animation tool for hand-drawn cartoons and comics with timeline-based layers and sound

Free, open source CAD for precise 2D drafting, customizable for technical plans and detailed layouts

Vector-based design tool for quick, intuitive prototyping with minimalist interface and customizable creative workflow

Professional tool for creating and displaying dynamic live presentations, lyrics and media in real time

Comprehensive suite for vector illustration, photo editing, and professional page layout design

A free analog circuit simulator with powerful SPICE-based tools for schematic design and waveform analysis

Accessible 3D mesh editing tool for customizing, repairing, and preparing models for printing