Land PoliceSign inOpen-source software & credits
Land Police is built with open-source software. We thank its authors and follow its licences. Each file is served unmodified from our own website, with its copyright notice and licence.
In your browser
| Component | Version | Licence | Used for | Licence |
|---|---|---|---|---|
| Leaflet | 1.9.4 | BSD 2-Clause | the interactive map | Licence text |
| supabase-js | 2.118.0 | MIT | sign-in and talking to our database | Licence text |
| jsPDF | 4.2.1 | MIT (bundled parts MIT and Zlib) | PDF certificates and receipts | Licence text |
| html2canvas | 1.4.1 | MIT | turning a certificate into an image for the PDF | Licence text |
| QRCode.js | 1.0.0 | MIT | QR codes on certificates | Licence text |
| Archivo (typeface) | Fontsource 5.2.5 | SIL Open Font License 1.1 | headings | Licence text |
| Public Sans (typeface) | Fontsource 5.2.5 | SIL Open Font License 1.1 | body text | Licence text |
| JetBrains Mono (typeface) | Fontsource 5.2.5 | SIL Open Font License 1.1 | certificate and reference numbers | Licence text |
Map data
Street maps: © OpenStreetMap contributors, available under the Open Database Licence (ODbL). Satellite imagery, when you choose Satellite on the map: Esri, Maxar and Earthstar Geographics, provided under licence through an ArcGIS Location Platform account.
On our servers
Our server functions run on Supabase Edge Functions (Deno) and use supabase-js (MIT). Database extensions such as PostGIS (GPL, run as a service and not distributed) are provided by Supabase.
Our own work
The Land Police name, logo, seal, icons, text and the platform's own code belong to LAND POLICE, LLC. They are not open source.
Found a licence we've missed? Email legalteam@landpolice.com.
Version 1.3 · in force from 11 November 2026