The situation is no different than discovering that the person who insists that they 'need' Photoshop is just using it to draw a few geometric shapes and remove red-eye from photos what they really need is a graphics editing tool that can replace those specific functions. The trick for deciding whether a replacement piece of software, whether open or closed, is a good choice for you is to tease out exactly what your needs are. But I would argue that the reason for your disappointment has nothing to do with the licensing of the product-drop-in replacements for complex programs with long-time users who have specific needs and expectations for their software are hard. Let's start by being honest and upfront about something: If you're looking for a drop-in replacement for your existing CAD program that will provide identical functionality and workflow without making any changes to your processes, you're going to be disappointed. So how do the open source alternatives to AutoCAD stack up? The answer depends on how you plan to use them.

Free online course: RHEL technical overviewĪmong the best-known CAD programs is AutoDesk's AutoCAD, but there are many others, proprietary and open source, out there.

Simple cad programs free