Yes, you can run third-party audio plugins in Logic Pro, and most of the time they simply appear. The confusion is that Logic takes one plugin format and ignores the other, and when a plugin does not show up there is no error message telling you why.
Everything here is macOS, on Apple Silicon and Intel. Menu names and paths are for current Logic Pro; where an older version differs it is called out.
Logic Pro loads Audio Units only. It does not load VST or VST3, ever, and there is no setting that changes that. Audio Units (AU) is Apple's own plugin format, built into macOS, so anything that runs in GarageBand or MainStage will generally run in Logic too.
If a developer sells you a VST3 and nothing else, it cannot be used in Logic. Most Mac developers ship an AU alongside the VST3, and if they do, you already have what you need. The only way to run a VST inside Logic is a third-party wrapper that presents it to the host as an Audio Unit, which is a separate tool and outside the scope of this page.
Logic is AU only. A .vst3 file on its own will never appear
in Logic no matter how many times you rescan. When you are buying for Logic, the format to
check for is AU, which usually arrives as a .component file.
An Audio Unit is a .component file, and it goes in one of two Components folders.
An installer normally drops it in the right place for you. If you are copying one by hand, these
are the folders Logic reads, and it reads both.
| Location | Path | Applies to |
|---|---|---|
| System wide | /Library/Audio/Plug-Ins/Components |
Every user on the Mac. Needs an admin password to install |
| Just you | ~/Library/Audio/Plug-Ins/Components |
Your account only. No password needed |
Unlike DaVinci Resolve and Premiere Pro, which read only the top-level folder, Logic reads
both of these and lists whatever it finds in either. So a plugin in the home-folder
version is not the problem in Logic that it is in a video editor. If you want to check a plugin
actually landed, open Finder, press Shift+Cmd+G, paste one of those paths and look. The
~/Library folder is hidden by default, which is why people sometimes think an
install failed when it did not.
Some newer plugins ship as an Audio Unit Extension (AUv3) delivered inside
an app in your Applications folder rather than as a loose .component. You do not
place those by hand; running the app once registers the plugin with the system, and it then
shows up in Logic like any other Audio Unit.
Logic validates every Audio Unit before it will list it, and a plugin that fails is quietly left out. There is no popup, it is just missing. Work through these in order.
Logic scans and validates Audio Units at launch, and again when you install or update one. If Logic was open while the installer ran, the new plugin may not register until you fully quit and relaunch. This alone fixes most cases.
Choose Logic Pro > Settings > Plug-in Manager (older versions of Logic call it Preferences). Installed Audio Units are listed by manufacturer. The Compatibility column shows a checkmark when a plugin passed, and text such as failed validation or not compatible when Logic rejected it. That column tells you straight away whether the problem is the plugin or the install.
If the plugin shows as failed, select it in the list and click Reset & Rescan Selection. Logic re-runs its validation on just that plugin and shows Successfully Validated if it passes. If you would rather have Logic throw away its entire validation database and start fresh, click Full Audio Unit Reset, then quit and reopen Logic so it rescans every plugin from scratch. Nothing is lost by doing this.
On an Apple Silicon Mac a Universal or Apple Silicon plugin loads natively. An Intel-only
Audio Unit shows up in Logic only when Rosetta 2 is installed. To see which a
plugin is, select the .component in Finder, press Cmd+I, and under General it will
read Universal, Apple Silicon, or Intel. Prefer a native build wherever the developer offers
one.
Since macOS Catalina, an unsigned or unnotarized plugin can be blocked by Gatekeeper before Logic ever sees it. If you got a security warning during install, that is the cause. Anything from a real developer will be signed and notarized and will install with no warning.
If the only file you can find is a .vst3, that is the whole problem, and no
amount of rescanning will help. Logic needs the .component version. If the
developer does not ship one, that plugin cannot run in Logic on its own.
macOS ships a command line tool called auval that runs the same validation Logic
uses, and it tells you exactly why an Audio Unit was rejected. It is the fastest way to separate
a plugin problem from a Logic problem.
Open Terminal and run auval -a to list every Audio Unit the system can see. If
your plugin is not in that list, the problem is the install, the architecture, or Gatekeeper,
not Logic itself, so go back to the steps above.
If it is in the list but still missing from Logic, take its four-character codes from that
output and validate it directly. For an audio effect that is auval -v aufx CODE MANU,
where CODE is the plugin's subtype and MANU is the manufacturer. An
instrument uses the type aumu in place of aufx. The tool runs through
each validation phase and marks it PASS or FAIL, so a failure line points straight at what Logic
is objecting to.
Because auval and Logic share the same validation, a plugin that passes
auval but is still missing from Logic points back at the install location or a stale
scan rather than the plugin. That is the case to clear with a Full Audio Unit Reset.
Logic's own instruments and effects are deep, and for most jobs you do not need anything else. The gap people tend to feel is not another EQ or another reverb, it is a starting point: something that plays itself while you find the idea, instead of an empty piano roll waiting for you to fill it.
ARGISH is a self-playing drone synth. You set a mood and a key, build a progression on the chord wheel, and it composes on its own, so there is music moving before you have written a note. It ships as an Audio Unit, so it drops straight into Logic, and also as a VST3, an AAX for Pro Tools, and a standalone app. It is signed and notarized, so none of the trouble on this page applies to it.
Hear the whole thing free in your browser first, no install and no account.
We write these when there is something worth writing down. One email when a new one lands or a new Tunary instrument ships. No newsletter, no schedule.
Tunary