available on Mac, Windows and Linux (vst2 - vst3 - AU)
HY-Filter4 is a semi-modular type effect plugin.
Free version

• 2 filter engine available (SVF and 3BP).
• 5 types of modulator available (LFO, 2DLFO, RND, Env Follower and XY Control)

The commercial version add a lot of features

• Multi-engine filter
• 38 built-in effect units
• 10 types of modulator (total 42 units)
• Built-in grid sequencer (CTRL SEQ) for controlling effect and modulator units
• Drag and drop modulation assignment

download link and more videos:
https://hy-plugins.com/product/hy-filter4/

 

Following your link, it appears at 38$

Compatibility:
Windows:
VST2, VST3 32/64bit
macOS:
VST2, VST3, AU 64bit only
Linux:
VST2, VST3 64bit only

 

There is a (reduced) free version https://plugins4free.com/plugin/3769/

 

There are both free and commercial versions for all HY-Plugins
Currency the download page ( https://hy-plugins.com/download/) is not updated (only hy-Filter3 is available)
so on the product page, you have to check the left panel and click on download https://hy-plugins.com/product/hy-filter4/

or use No Avenger link https://plugins4free.com/plugin/3769/

 

Such a great free plug-in! I'm a bit sad that they removed the EQ from v3, but the added modulators and GUI update is nice.

 

Actually yes the free version is ver 4. I LOVE Hy-Plugs stuff!

EDIT My bad, read your post wrong.

 

the download page is updated..we can now download hy-Filter4 free from the product page or the download page ;)