Vectr - Free vector graphics editor. A simple yet powerful web and desktop cross-platform tool for everyone.
Templates by Email Monster - Hundreds of free, responsive email templates. Pick and edit.
Vecteezy Editor - Free Online Vector Editor - Design and customize SVG illustrations and graphics quickly and easily in your browser.
Stripo - Stripo is an all-in-one email design platform. We enable our clients to build emails of any complexity, including interactive AMP emails, really fast and easy.
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
MJML - The open source framework for responsive emails