Spek-rs is an acoustic spectrum analyser written in Rust.
Designed as an alternative to Spek, it creates spectrograms from audio files and wraps FFmpeg’s showspectrumpic functionality in a desktop application.
This is free and open source software.
Key Features
- Supports drag and drop for opening files.
- Includes custom legend color settings.
- Uses color palettes based on the FFmpeg source code.
- Cross-platform support – runs under Linux, macOS, and Windows.
Website: github.com/patryk-ku/spek-rs
Support:
Developer: Patryk Kurdziel
License: MIT License

Spek-rs is written in Rust. Learn Rust with our recommended free books and free tutorials.
Related Software
| Audio Analyzers | |
|---|---|
| Sonic Visualiser | View and analyse the contents of music audio files |
| Friture | Visualize and analyze live audio data in real-time |
| Spek | Acoustic spectrum analyser |
| projectM | Music visualizer originally based on Milkdrop |
| SongRec | Open source Shazam client |
| Cava | Cross-platform audio visualizer |
| sndpeek | Real-time audio visualization tool (animated, 3D) |
| MasVisGtk | Powerful and comprehensive audio analysis tool |
| Mousai | Simple application that can identify songs similar to Shazam |
| AudMeS | System for audio measurement through a sound card in the PC |
| Cavalier | Audio visualizer based on Cava |
| Open Sound Meter | Measurement application for tuning sound systems in real time |
| Le Biniou | Music visualization / VJing tool |
| Cavasik | Fork of Cavalier |
| GLava | OpenGL audio spectrum visualizer |
| Spek-rs | Acoustic spectrum analyser |
| Soundscope | Analyzing audio data |
| Partiels | Audio analysis tool |
| rtspeccy | Real time spectrum analyzer |
| FMIT | Graphical utility for tuning musical instruments |
| shaq | Bare-bones CLI client for Shazam |
| audioprism | Spectrogram tool for PulseAudio and WAV files |
| spectroterm | Curses based terminal spectrum analyzer |
| Music Radar | Simple application that can identify songs similar to Shazam |
| cli-visualizer | Command line visualizer for MPD, ALSA and PulseAudio |
Read our verdict in the software roundup.
Explore our carefully curated directory of recommended free and open source software, covering every major software category.The directory forms part of our extensive collection of articles for Linux enthusiasts. It includes hundreds of detailed reviews, together with free and open source alternatives to proprietary software from companies such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. LinuxLinks also covers interesting projects worth exploring, Linux-compatible hardware, free programming books and tutorials, and much more. Know a useful free and open source Linux application that we haven’t covered? Tell us about it using our submission form. |


Please read our Comment Policy before commenting.