Third-party notices
Effective November 5, 2026
SightLine is built with these open-source components. Thank you to their authors. Each is used under its own licence, summarised below; the full licence texts ship with the app.
| Component | Used for | Licence |
|---|---|---|
| Electron (includes Chromium and Node.js) | The desktop app | MIT; Chromium and Node.js components under their own licences (listed in LICENSES.chromium.html in the app folder) |
| Express | The app's built-in local service | MIT |
| Leaflet 1.9.4 (© Vladimir Agafonkin, CloudMade) | The map | BSD 2-Clause |
| Leaflet.GridLayer.GoogleMutant (© Iván Sánchez Ortega) | Google map layers, when you add your own key | Beerware |
| three.js r147 and OrbitControls (© three.js authors) | The 3D view | MIT |
| PDF.js (© Mozilla) | Reading PDF floor plans | Apache 2.0 |
| QR Code generator (© Kazuhiko Arase) | QR codes in reports | MIT |
| Roboto and Roboto Condensed (© Google) | Report fonts | Apache 2.0 |
Map data and imagery
- Street map and building outlines © OpenStreetMap contributors, available under the Open Database License.
- Satellite imagery © Esri and its data providers (Maxar, Earthstar Geographics and the GIS user community).
- Google Maps imagery, when you use your own Google key, © Google and its data providers.
Camera names and brands belong to their owners. SightLine is not affiliated with or endorsed by any camera manufacturer.