Z Zotero Open-source reference manager for collecting, citing and organizing research. Research & Education•Free / paid storage ▲0
E Excalidraw Open-source sketch-style whiteboard for diagrams and visual notes. Design & Creative•Free / paid plans ▲0
P Penpot Open-source design and prototyping platform for product teams. Design & Creative•Open source ▲0
S Supabase Open-source backend platform with database, auth, storage and APIs. Developer Tools•Free / paid plans ▲0