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Plugins FAQ

Everything you need to know to get started with free audio plug-ins. Select your operating system below.

Windows

VTSSVST / VST3

What is it? VST (Virtual Studio Technology) is the most widely used plugin format on Windows. Created by Steinberg in 1996, it is supported by virtually every DAW: FL Studio, Ableton Live, Reaper, Cubase, Studio One, Bitwig, and many others. VST plugins come in two types — instruments (VSTi) that generate sound, and effects (VSTfx) that process audio.

VST vs VST3 — what's the difference? VST3 is the modernised version introduced in 2008. It uses less CPU when the plugin is silent, has better MIDI handling, and supports features like note expression. If both versions are available, always choose VST3. The only practical difference for installation is the folder location.

32-bit vs 64-bit — what does it mean? All modern DAWs (FL Studio, Ableton, Reaper, etc.) are 64-bit applications. A 64-bit DAW can only load 64-bit plugins directly. Plugins marked Win64 on this site are 64-bit and will load without any issue. Plugins marked Win32 are 32-bit — they were built for older systems and cannot be loaded directly into a 64-bit DAW. To use them, you need a bridging tool, which runs the 32-bit plugin in a separate process and passes audio and MIDI between it and your DAW. The most widely used bridge is jBridge (paid, ~€15) — it works reliably with most 32-bit VST plugins. Some DAWs like Reaper also have built-in bridging. Note that bridged plugins may use slightly more CPU and RAM, and crash isolation is not guaranteed.

How to install:

  1. Download the plugin. It will come as a .zip archive, a .dll file, or an .exe installer.
  2. If it's a .zip, extract the contents first.
  3. If it's a .dll file: copy it to your VST plugins folder. Common locations include C:\Program Files\VSTPlugins\, C:\Program Files\Steinberg\VSTPlugins\, or a custom folder you've set in your DAW preferences.
  4. If it's a .exe installer: double-click and follow the steps. It places the plugin in the correct folder automatically.
  5. VST3 plugins (.vst3 files or folders) go to C:\Program Files\Common Files\VST3\.
  6. Open your DAW, go to Preferences → Plugins, and run a scan. The new plugin will appear in your instruments or effects list.

Tip: Create a single dedicated folder like C:\My VST Plugins\ and point all your DAWs to it. This keeps things organised as your collection grows.

AAX — For Pro Tools Users

What is it? AAX (Avid Audio eXtension) is the plugin format used exclusively by Pro Tools, the industry-standard DAW used in professional recording studios worldwide. AAX replaced the older RTAS format starting with Pro Tools 11. If you don't use Pro Tools, you don't need AAX plugins.

AAX Native vs AAX DSP: Most plugins come as AAX Native, which runs on your computer's CPU — this is what home studio users need. AAX DSP requires an Avid HDX hardware card found only in high-end studio setups, and offloads processing to dedicated chips.

How to install:

  1. Download the AAX installer (.exe).
  2. Completely close Pro Tools before installing.
  3. Run the installer — it automatically places the plugin in C:\Program Files\Common Files\Avid\Audio\Plug-Ins\.
  4. Launch Pro Tools — it scans and detects new plugins automatically on startup.

Requirements: Pro Tools 10.3.7 or later for AAX Native. Pro Tools 11 or later is strongly recommended for the best compatibility with current plugins.

RTAS — Legacy Format

What is it? RTAS (Real Time AudioSuite) was Pro Tools' plugin format before AAX. It was discontinued with Pro Tools 11 in 2013. If you're using Pro Tools 11 or newer — which is almost certainly the case — RTAS plugins will not load. Use AAX instead.

When is it still relevant? RTAS plugins are listed on this site for users maintaining older Pro Tools setups (version 10 or earlier) for compatibility with legacy sessions. If you're starting fresh, ignore RTAS entirely.

How to install (Pro Tools 10 or earlier only):

  1. Download the RTAS installer.
  2. Close Pro Tools.
  3. Run the installer — it places the plugin in C:\Program Files\Common Files\Digidesign\DAE\Plug-Ins\.
  4. Restart Pro Tools.

Which DAW should I use on Windows?

A DAW (Digital Audio Workstation) is the software that loads and runs your plugins. Here are the best options at every price point:

  • Reaper — Excellent value. Fully featured, rock-solid, supports VST/VST3/AAX. $60 discounted license. Free to evaluate indefinitely.
  • Cakewalk by BandLab — Completely free, professional quality. One of the best free DAWs available. Supports VST/VST3/AAX. Windows only.
  • LMMS — 100% free and open source. Very beginner-friendly with a built-in beat editor, piano roll, and synths. Supports VST plugins.
  • Ableton Live Lite — A limited free version often bundled with audio interfaces. Excellent for loop-based music and live performance.
  • FL Studio — Very popular for electronic music and hip-hop. Comes with lifetime free updates. Free trial available.
  • Studio One Prime — Free version of the excellent Studio One DAW. Supports VST3 plugins.

Browse our free VST hosts for a full list of compatible software.