MdspFlanger is a free flanger VST, Audio Unit plugin developed by Smart Electronix. Compatible OS(s): Windows, macOS.
by mdsp of Smart Electronix
mdspFlanger has a tempo-syncable LFO with different waveforms (triangle, sin, square, triangle exponential, random…) and a smoothing factor for the waveform, enabling you to achieve new effects not available from classic flangers.
http://www.smartelectronix.com/