Experimental data

Pedestrian Dynamics Data Archive (data on crowd motion) (link)

Movebank (animal tracking data) (link)

WorldPop (demographic data) (link)

Tracking software

YOLO (all-purpose tracker) (link)

PeTrack (pedestrian tracking) (link)

Tracker (all-purpose semi-automated tracking) (link)

Kinovea (simple video processing and analysis) (link)

UMATracker (animal tracking) (link)

DeepLabCut (animal pose estimation) (link)

AnTracks (ant tracking) (link)

TRex (mainly for fish tracking) (link)

idtracker.ai (yet another tracker for animal experiments) (link)

VGG Image Annotator (data labeling for machine learning) (link)

labelme (yet another program for labeling, polygons here) (link)

Survey creation and data collection

Typeform (link)

Survey Monkey (link)

Pollfish (link)

Various useful software

JuPedSim (pedestrian and crowd simulation) (link)

P2Pnet (people counting) (link)

automeris (data extraction from plots and charts) (link)

NetLogo (multi-agent simulations) (link)

ImageJ (multi-purpose image processing) (link)

PIVLab (PIV based on MATLAB) (link)

VOSviewer (bibliometric analysis) (link)

Inkscape (image manipulation) (link)

VirtualDub (simple video processing) (link)