Credits
Last updated 2026-10-13
OpenSDR is built on the work of others. Thank you.
OpenSDR itself is free software under the GNU Affero General Public License, version 3. The source code of this site is at https://github.com/amzad78692/opensdr-web.
Map and data
| What | From | License |
|---|---|---|
| Night and relief images of the Earth on the globe | NASA Earth Observatory (Black Marble, Blue Marble), via three-globe | Public domain |
| Countries and cities | nnjeim/world | MIT |
| Manrope font | Mikhail Sharanda, served by Bunny Fonts | SIL Open Font License 1.1 |
The map view on the home page uses map data © OpenStreetMap contributors (Open Database License), drawn with Leaflet (BSD-2-Clause).
Software
| Part | Projects |
|---|---|
| Website and API | Laravel, Filament, Livewire, Tailwind CSS, Spatie packages (MIT) |
| Globe | globe.gl, three-globe, three.js (MIT) |
| Audio in the browser | opus-decoder (MIT), libopus (BSD) |
| Audio relay | FastAPI, Uvicorn, HTTPX (BSD and MIT) |
| Station software | rtl-sdr from Osmocom (GPL-2.0), NumPy (BSD), PyAV and FFmpeg with libopus (BSD and LGPL), websockets (BSD) |
| Phone app | Flutter (BSD), opus_dart, flutter_pcm_sound and other packages listed in the app |