python pillow - The friendly PIL fork (Python Imaging Library). Contribute to python-pillow/Pillow development by creating an account on GitHub.
MockFlow - A super easy wireframing tool with all the other tools you need in the product design process
Ionic - Ionic is a cross-platform mobile development stack for building performant apps on all platforms with open web technologies.
Axure - The most powerful way to plan, prototype and hand off to developers, all without code. Download a free trial and see why professionals choose Axure RP 9.
python xlrd - Please use openpyxl where you can... Contribute to python-excel/xlrd development by creating an account on GitHub.
UX-App - HTML5 all-in-one mockup & prototyping tool that exports completed interfaces to working HTML + Javascript