Full GNU Radio software-defined-radio implementation of a LoRa transceiver, including a complete CSS receiver with synchronisation and CFO/STO correction that decodes correctly even at very low SNR. The reference open-source way to de-chirp and demodulate LoRa off an SDR (HackRF / USRP / bladeRF / RTL-SDR).
Lifecycle not assessed: nobody has checked yet whether this tool is still maintained, sold or working. Check the project's own page before relying on it.