Live & Free to Use · Standalone Tool
A browser-based, to-scale crash-scene diagram builder — nothing you draw ever leaves your device.
Vehicles, people, roads, signs, and notes — dropped onto a real-proportioned diagram and exported as a print-quality PNG in a few minutes. No account, no install, no cloud upload: SceneSketch runs entirely client-side, so the scene stays on the device that drew it until you choose to share the exported image yourself.
Real, proportioned icons and a road builder that snaps together like a track set — so the finished diagram actually looks like the scene it describes, instead of guesswork and mismatched clip art.
Straight and curved pieces that snap together automatically, or a one-click preset — T-intersection, 4-way, roundabout (1–3 circulating lanes) — with 1–4 lanes per piece and editable street names.
24 icon types drawn from one shared real-world length/width table, from sedans to tractor-trailers to farm equipment, so a truck next to a bike actually looks like it.
33 types drawn in real MUTCD shapes — octagon stop, triangle yield, diamond warning — plus guardrail, culverts, utility poles, signals, and fixed structures.
Drop a plain-text note anywhere for whatever a fixed code list can't capture — skid marks, debris fields, a short caption — placed, moved, and rotated like any other item.
One interaction for every item on the canvas: click to select, drag the handle to spin it or type an exact heading in degrees, drag the body to reposition. An always-visible, draggable north compass keeps orientation honest.
"Export PNG" saves a clean, full-resolution image with no watermark — ready to drop into a report, an insurance claim, or a court file.
SceneSketch is the same diagramming engine built into Mobile Driver Report, our free tool for Nebraska drivers filing their own crash report. This standalone version is for agencies, insurers, and teams that want the diagramming tool on its own — no crash-report workflow attached, licensed commercially through Bad Marine LLC.
Try it free right now, or get in touch about licensing it for your organization.
