Free-body diagram
Native free-body diagrams for mechanical, structural, and civil engineering. Declare bodies with `at x,y` positions and arbitrary force vectors with magnitudes, colours, and labels. Supports `moment` curved-arrow torques and an optional hatched `surface` line for incline / floor contexts. Renders in a true coordinate system so vectors are physically faithful.
In the same space
Most users come to Free-body diagram from Hand-drawn FBDs or Engineering textbook diagrams. flowss runs this engine in the browser — no install, shareable via URL, exportable to PNG / SVG / PDF / source.
Syntax at a glance
body B at 320,200 size 100,70 label "10 kg"
force W on B vector 0,140 color red label "W"
force N on B vector -55,-95 color blue label "N"Paste this in the Studio code pane to see Free-body diagram render live. The full grammar is at the upstream-docs link above.
Sample templates
All 85 →Classic 30° incline with weight, normal, and friction vectors.
Two masses on a frictionless pulley, vectors and tension labelled.
Wall-fixed beam with point load and reaction force/moment.
Joint analysis at a single pin with three member forces.
Projectile mid-flight (gravity only; no air resistance).
Passenger inside an elevator with apparent weight increase.
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