SatDump is a popular piece of software that can be used with RTL-SDRs and other software defined radios for decoding images from a wide array of weather imaging satellites including GOES, GK-2A, NOAA HRPT, FengYun, Electro-L and Meteor M2 LRPT + HRPT, and many others (note: there is no APT support at the moment, but it is planned for the future). It is compatible with Windows, Linux and even has an Android APK available.

Recently author @aang23 has updated the software, noting that he's done an almost full rewrite, including major updates to the GUI. The SatDump blog post goes into greater detail about he updates, but as a summary some of the biggest updates include:

• A reworking and tidy up of the GUI with improved FFT view
• A viewer which allows you to view output image products, and create RGB composites
• A projection tool on the viewer, allowing you to project images onto OpenStreetMap.
• Upgrades to the plugins system, allowing developers to more easily add support for new satellites / missions and SDRs.
• The addition of 'products' metadata, allowing users to separate raw channel data
• The addition of demodulators like DVB-S2, GOES-R GRB, HimawariCast, DVB-S
• Support for additional SDRs like BladeRF, SDRplay RSP Duo, PlutoSDR and MiriSDRs.
• Updates to the CLI interface
• Updated less buggy Android App