multimon-ng is a command-line decoder for a broad range of digital transmission modes used in radio and signalling workflows.
It can decode live streams as well as recorded sample files, and it fits neatly into SDR pipelines where audio is passed in from tools such as rtl_fm or converted beforehand with SoX. As the successor to multimon, it’s aimed at users who want a flexible decoder that can be built and run across several operating systems.
This is free and open source software.
Key Features
- Decodes numerous digital modes including POCSAG, FLEX, EAS, AFSK, FSK, DTMF, ZVEI, CCIR, EEA, EIA, and Morse CW.
- Works with raw sample input, recorded audio workflows, and standard input for live decoding pipelines.
- Provides example workflows for integrating with RTL-SDR and related command-line tools.
- Cross-platform support – runs under Linux, macOS, and Windows.
Website: github.com/EliasOenal/multimon-ng
Support:
Developer: Elias Önal
License: GNU General Public License v2.0
multimon-ng is written in C. Learn C with our recommended free books and free tutorials.
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Read our verdict in the software roundup.
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