Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Crowdin - Localize your product in a seamless way
Sketch - Professional digital design for Mac.
POEditor - The translation and localization management platform that's easy to use *and* affordable!
Adobe Illustrator CC - Adobe Illustrator CC is a commercial vector graphics editor.
Lokalise - Localization tool for software developers. Web-based collaborative multi-platform editor, API/CLI, numerous plugins, iOS and Android SDK.