Freesound - The Freesound Project is a collaborative database of Creative Commons licensed sounds.
UX Flow Wireframe Prototyping System - Create beautiful user flows prototypes for your next project
Whyp - Free & fast audio sharing site
draw.io - Online diagramming application
Tapes.AI - The future of sample packs
UMLGraph - UMLGraph is a professional automated drawing tool that allows the designers the declarative specification and drawing of UML class and sequence diagram.