jsCompShaper is a dynamic audio processor that combines the characteristics of a soft-knee compressor with those of a waveshaper, allowing smooth transitions between compression and waveshaping modes. This unique design offers flexible control over the audio signal, enabling users to shape dynamics and tone within a single plugin. Its adjustable knee hardness provides fine-tuning of the compression curve, catering to a wide range of audio sources and styles.

The plugin also features frequency-dependent processing through pre- and post-emphasis filtering, which functions similarly to a side-chain filter. This allows targeted compression or waveshaping based on the frequency content of the input signal, enhancing control over how different sonic elements are treated. An analog-style attack and release curve contribute to a natural and musical response, making jsCompShaper suitable for both subtle dynamic control and more aggressive sound design.

Additional features include parallel compression via a mix knob for blending processed and unprocessed signals, as well as oversampling up to 16 times to preserve audio quality during intense processing. The plugin provides comprehensive metering with VU and peak meters for both input and output, along with gain reduction metering. Quick A/B comparison states and full 64-bit double precision processing ensure a professional workflow and pristine sound.