Sketch - Professional digital design for Mac.
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Qiqqa - Qiqqa is a free research and reference management software. It can be used in many organizational projects from the academic to the personal to the business endeavor. Read more about Qiqqa.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
JabRef - Graphical Java application for managing bibtex (. bib) databases.JabRef · JabRef Help · JabRef | Blog · OpenOffice/LibreOffice .