Download the Best Free Audio Plugins. Synths, Reverbs, Compressors.and much more. Just click and download.
The Best Free Audio Plugins for OS X with Video Demos. AudioUnit (AU), RTA, VSTSynths, Reverbs, Compressorsand much more. Just listen, watch and download!
A group of audio DAW plug-ins targeting Windows (VST), Mac (VST/AU), and Linux, mostly for Guitar Amplifier simulation, with the C-120 being the flagship product (which started off long ago as a closed-source VST). Open source, mostly under GPL.

The VST Plug-ins page on the Audacity Wiki contains further help for VST plug-ins, and lists a large number of VST plug-ins that have been reported to work well in Audacity. Audio Unit Plug-ins On Mac OS X only, you can add Audio Unit plug-ins to the system plug-in directories (Audacity will not recognize any Audio Units in its own “plug-ins. Download free Adobe Flash Player software for your Windows, Mac OS, and Unix-based devices to enjoy stunning audio/video playback, and exciting gameplay. Important Reminder: Flash Player’s end of life is December 31st, 2020.

In this step-by-step guide, learn how to enable Adobe Flash Player in the Safari web browser.

Before you start, check the version of Safari running on your Mac. To display the version number, choose Safari > About Safari.

If your Safari version is 11.0 or later, follow the steps in For Mac OS X 10.11, macOS 10.12, and later.
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Click the Websites tab and scroll down to the Plug-ins section. Locate the Adobe Flash Player entry.

Select a setting to use for Flash Player when you visit other websites.

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Click the Security tab. Ensure that Enable JavaScript and Allow Plug-ins are selected. Click Plug-in Settings.

From the When visiting other websites menu, choose On, and then click Done.

This post is for the Mac users.
When it comes to Mac OS X, the number of freeware plugins is very low, compared to the Windows world.
The popular “Save as VST” softwares (Synthedit and Synthmaker) are Windows only.
The “upgrade” politic of Apple is a sort of nightmare for developers (and sometimes users!), so many old free plugins don’t work anymore…

I have searched for free MAC plugins over the web and then tested !
– only free synth (not effects), in VST and or AudioUnit (AU) format
– the OS used is Mac OS X 10.8 (Mountain Lion)
– i tested the plugins in Ableton Live 9 / Renoise / some free VST & AudioUnit host softwares (Pedalboard, the JUCE open source plugin host, VSTLord, AULab, Ugly VSTi Interface…)

It’s a selection with free virtual analog synths, organ emulations, epiano emulations, drum synth, bass synth, FM synth, emulation of Oberheim / NordLead / DX 7 synth, chip synth, guitar emulation…

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and here a list of 25 free synth plugins for Mac OS X :

1. Synth1 AU/ VST

The must-have free synth plugin is available for Mac since one or two years, it is in beta state, it still have some minor bugs with the UI, but it’s usable and you can benefit from the incredible amount of presets created for Synth1, including these 😀
=>
https://blog.wavosaur.com/synth1-presets-chris-bank-volume-2/ &
https://blog.wavosaur.com/chris-bank-synth1-reup/
I had some problems for saving preset in Ableton Live.
Synth1 can do an incredible variety of sounds.
The most versatile Synth in this list

2. OBXD AU / VST

OBXD AU

The free Oberheim OB-X OB-Xa OB-8 emulation !
work without any problem in my AudioUnit / VST hosts on Mac.

3. Tyrell N6 AU / VST

http://www.u-he.com/cms/tyrelln6
DL here : http://www.amazona.de/amazona-de-freeware-synthesizer-tyrell-n6-v3/

U-He loves the Mac, don’t hesitate to have a look at the other freeware on the Website, all are working without problems in VST or AudioUnit format. I have also selected Triple Cheeze and Zebralette from the same developer. These plugins are good and full featured.

TyrellN6 plugin comes with a big amount of presets, and a deep variety of sounds. It’s powerful and easy to program. It’s rock solid stable and have a nice UI too!

4. FreeAlpha AU / VST

FreeAlpha AU

This freeware from LinPlug sounds very good, it has punch and is easy to tweak. It can do punchy bass, but also nice pads and clean leads. Despite its simple look, it’s powerful and funky!

5. Crystal AU / VST

The old Crystal Synth is still top, and one of the best synth for complex / evolving PADS, with its multipoint envelopes, and the complete modulation matrix.
One of the best virtual synth, for more than 10 years!

6. TAL NoiseMaker AU / VST

TAL Noisemaker

Like U-He, TAL has many freebees for Mac OS X.
I have selected Noize M4k3r and Elek7tro but you also have other interesting plugins.
The “Noise Maker” plugin has two osc + sub, a good filter and the famous Chorus “a la Roland”, so you have all you need for your fat bass/lead. Certainly more agressive than Crystal, it completes well the sonic arsenal.

7. Dexed FM VST

The famous free Yamaha DX7 emulation ! It’s VST only (no AU for the moment).
Use the cart / load / save button to browse or import presets.
It can read / write sysex files for and from the DX7.
Now all your FM needs are fullfilled: you can do pop ballad or Detroit techno, vive la FM !

8. MiniSpillage AU (Drum Synth)

MiniSpillage AU

Now that we have the FM synth, the Pad synth, the Bass synth and Lead capable synths, we need a DRUM synth. The Minispillage plugin has three dedicated algo for bass drum, wood drum and hihat.
I tend to prefer “Drumatic” but Drumatic is Windows only. Adobe photoshop for mac cs4.

9. ComboF organ AU / VST

After all these synths, we now need an emulation of our prefered organ : the Farfisa combo organ!
ComboF gives you the sound of the Italian electric organ we all love. Available for Mac and windows, in AudioUnit and VST!

10. MrTramp 2 e-piano AU / VST

MrTramp2

After the organ emulation, we need the electric piano! MrTramp 2 is the best (free or not) emulation of the Wurlitzer electric piano. It’s raining again ! Now you can sound like Supertramp ! Breakfast in America !! There are not so much controls but you don’t need more, and the sound is excellent.

11. Cheeze Machine AU

A dedicated string synth plugin for Mac ! The Cheeze machine from Big Tick is a kind of Arp Solina emulation. It has this phaser / chorus creamy sound.
it’s AU only and should work with your favorite Mac host software.

12. TripleCheese AU / VST

TripleCheeze plugin

Cheese again !
The U-He contribution to the first KVR Developer Challenge. It’s an original synth with u

Plagins For Mac