Mindmapping

TeamMapper : https://www.teammapper.org/

SimpleMind Pro : https://simplemind.eu/

Whiteboarding

Excalidraw : https://excalidraw.com/

Microsoft Whiteboard : https://apps.microsoft.com/store/detail/microsoft-whiteboard/9MSPC6MP8FM4?hl=en-us&gl=us

Zoom

ZoomIT : https://learn.microsoft.com/en-us/sysinternals/downloads/zoomit

Outils images

Filigramme pour documents sensibles (scan passeport..) : https://filigrane.beta.gouv.fr/