Transform geotagged photographs from the crime scene into an interactive map with animated route, walking avatar and evidence panel — without any image leaving your computer.
Why Locus is different
100% local evidence
Crime scene photos never leave your computer. GPS reading, image decoding and animation generation all happen in the browser.
Satellite map with route
GPS trail extracted from EXIF and animated on satellite map with walking avatar point-to-point.
Self-contained HTML animation
A single file that opens offline, with photos, animated map and evidence panel embedded — full animation of the scene dynamics.
Important notice
Support tool for forensic reconstruction. The generated animation, captions and conclusions are the exclusive responsibility of the signing forensic expert.
Free forever
A 100% free tool — and it will stay that way. Locus was conceived as a public utility for the forensic community: no subscription, no paid license, no premium tier.
No artificial intelligence
Locus is 100% deterministic: it reads the real GPS/EXIF metadata and timestamps from the photos and represents them exactly as they are. Nothing is inferred, estimated or "hallucinated" by models — what goes into the animation is verifiable, reproducible technical data.
No installation, no login, no evidence upload. Locus runs entirely in the forensic expert's browser.
Select or drag the crime scene photos. Locus automatically reads GPS, date and time from HEIC, JPEG and PNG images — including iPhone photos.
Select the scene type (Homicide, Suicide, Fire, Environment), fill in the reconstruction header, caption the evidence and mark forensic enlargements.
Export an interactive self-contained HTML. Opens offline, includes animated map with walking avatar, evidence panel with coordinates and full animation of the scene dynamics.
The server only delivers the page. GPS, photos and animation are processed entirely in your browser — no evidence ever leaves your computer.
Zero evidence upload
100% local processing
Offline animation generation
Chain of custody preserved
No AI · 100% deterministic
Free forever
Every feature was designed to respect the chain of custody and produce high-fidelity visual animations.
GPS & EXIF
Extracts latitude, longitude, date and time from HEIC (iPhone), JPEG and PNG images. No manual entry, no configuration. HEIC support via WebAssembly.
Forensic Map
The route trail is plotted on satellite imagery with the expert's avatar walking point-to-point. Each point opens the panel with the photo and evidence data.
Animation
A single HTML file with photos embedded as base64, institutional cover page, reconstruction header and annotated enlargements. Opens offline — complete animation of the scene dynamics.
Access
Distributed under PolyForm Noncommercial. Use expressly permitted and free for public safety, health, education and environmental protection agencies.
Free and open-source tool, built from real demands of public forensic criminal investigation.
State and federal criminal forensic experts who need to reconstruct scenes and present routes in a visual and auditable way.
Institutes that record evidence location and movements in external forensic examinations requiring georeferencing.
Reconstruction of fires, drownings and environmental crimes with georeferencing of photographic evidence.
Prosecutors and commissioners who need to present spatial dynamics clearly in investigations and criminal proceedings.
Locus was developed from real demands at the Integrated Forensic Post of Lavras/MG, Brazil. The need was clear: transform crime scene photographs into a traceable visual animation of the scene dynamics without compromising the chain of custody. Today it is freely available to all public forensic investigators.
Academia Forense
O Locus ainda está em desenvolvimento, mas você já pode se aprofundar nas ciências forenses pela Academia. Acesse artigos sobre fundamentos periciais, coleta de evidências digitais e análise de imagens com IA.
Questions about Locus? Find the answers below.
Forensic responsibility
Locus is a support tool. The generated animation, captions, measurements and conclusions are the exclusive responsibility of the forensic expert conducting the examination.
Access Locus, drop the crime scene photos and export the animation in minutes. Free, no registration, no evidence upload.