
Free
Less Tube
Valve saturation with the box drawn open: transfer curve and harmonic fingerprint on screen.
Launching soon · macOS, AU and VST3 · Windows, VST3
An independent audio DSP company. Five of our tools are free for everyone: a valve stage, a loudness meter, a compressor, a limiter and a gain tool, for macOS and Windows.


Free
Valve saturation with the box drawn open: transfer curve and harmonic fingerprint on screen.

Free
Loudness, true peak, correlation and spectrum, including the club and festival targets streaming meters skip.

Free
A clean compressor whose decision is drawn: transfer curve and gain reduction on one screen.

Free
A brickwall whose ceiling is a mathematical property, held in true peak.

Free
Gain, polarity, and a readout that turns level setting into arithmetic.
Every release passes 268 automated tests, Apple's auval, and pluginval at its maximum strictness, on both platforms. A claim that appears on these pages has a test or a measurement behind it.
Latency figures are exact sample counts reported to the host. Alias suppression, filter flatness and ceiling behaviour are measured on the shipping binaries, and the specifications below quote those measurements.
We build these tools for people who mix, and the free five are our contribution to that community. The engineering behind them is the same engineering our paid products get.
Less is more.