WebGrid SVG Building Tool is described as 'WebGrid is a simple web app that lets you create, tweak and download svg documents in just a few seconds'. There are more than 10 alternatives to WebGrid SVG Building Tool, not only websites but also apps for a variety of platforms, including Mac, Windows, Linux and Chrome OS. The best alternative is Inkscape, which is both free and Open Source. Other great sites and apps similar to WebGrid SVG Building Tool are Vectr (Free), SVG-Edit (Free, Open Source), Boxy SVG (Paid) and SVG Shape Generator (Free).
Vectr is a free graphics editor. Vectr is collaborative like Google Docs, and runs both in your web browser and on your desktop as a native app. With an intuitive interface, Vectr is easy to learn and use.
Boxy SVG is a vector graphics editor simillar to Adobe Illustrator, Sketch and Inkscape. Made with and for the modern Web Platform. Can do illustrations, icons, banners, mockups, charts, buttons and more.
SVG Shape Generator is a free tool made by Softr.io for creating random organic-looking shapes that can be used to add a nice touch to your landing page design, video thumbnail, social media banner, or any other visual.