Comparison · November 2026
Checked on 2 November 2026 by Sonisto, which makes one of the apps on this page. Every fact about another app comes from its developer’s own website, linked below, and every price is as that site listed it that day.
OwlPlug is free and open source, runs on Windows, Mac and Linux, needs no account and works with the folders you already have. If that is what you want, keep it. People look elsewhere for three reasons: its format table lists VST2, VST3, AU and LV2 and no AAX, so Pro Tools plugins are not on it; its site describes finding and installing plugins and does not list checking every brand for updates; and it lists no vault for serial keys.
| App | Mac | Windows | Price, as listed | Stands out for |
|---|---|---|---|---|
| Sonisto | Yes | Yes | Free plan; Basic $2.99/month or $29.99/year; Pro $9.99/month or $99.99/year | One library across every brand, with update notifications and links to the latest installers |
| OwlPlug | Yes | Yes (and Linux) | Free and open source (GPL-3.0) | Installing plugins from open registries, and finding plugins missing from Ableton Live, Reaper and Studio One projects |
| PluginHub | Yes | Yes | One-time: $39.99 (2 machines), $69.99 (5), $129.99 (10); three free scans | Update checks across 357 vendors, and installing updates from inside the app for nearly 60 of them |
| ProducerGrid | Yes | Yes | Free plan with daily limits; Pro listed at €19.99/year on 8 October | Plugins, presets, libraries, licences and projects from one scan |
| KVR Studio Manager | Yes | Yes | Free (donationware), KVR account required; public beta | Comparing your versions with the KVR database, and comparing setups with a client |
| Plugoff | Yes | Yes | Free today; its developer says it will become a paid product | Moving unused plugins to a vault folder or an external drive, and back |
Sonisto, PluginHub, ProducerGrid, KVR Studio Manager and Plugoff all list AAX.
PluginHub checks 357 vendors, KVR Studio Manager compares with the KVR database, and Sonisto gives update notifications for 10 plugins on its free plan and every plugin on Basic and Pro.
Sonisto (Basic and Pro), PluginHub and ProducerGrid have an encrypted vault.
Stay with OwlPlug. It is the only app here that runs on Linux, the only one here with LV2 on its format table, and its code is on GitHub under GPL-3.0.
OwlPlug scans Ableton Live, Reaper and Studio One projects and flags what is missing, which most of the others here do not list. ProducerGrid also reads projects.
Its registries let you browse and install plugins from inside the app, including from any distributor that publishes a compatible registry. It stores everything locally, needs no account and leaves your folder layout alone. If those matter most to you, keep it.
Sonisto’s free plan covers one computer, one scan a month and update notifications for 10 plugins. Basic adds a second computer, 20 scans a month, update notifications for every plugin, a vault for serial keys, comparing computers and exporting your library. Pro raises that to 10 computers and unlimited scans. A yearly Pro subscription comes with 12 plugins to keep on the day you join.
Sonisto tells you an update exists and links to the installer; it does not install updates for you, apart from freeware and a few selected brands. It has no tags and no way to switch a plugin off, and it can only uninstall plugins it manages itself.
Yes. Its FAQ says free and open source under GPL-3.0, with no subscription, no trial limits and no premium tier.
Its format table lists VST2, VST3, AU and LV2 on Windows, macOS and Linux. AAX is not on it, so check its site if that changes.
None of the others on this page. OwlPlug is the one.
Yes. OwlPlug’s FAQ says your existing setup is never touched by a scan, and Sonisto’s scan only reads what is installed.
Also: all the plugin managers side by side, PluginHub alternatives, plugin managers for Windows, and how to organize your plugins.
Scan your computer, see what you own and keep your setup under control with Sonisto.
Download the Sonisto Desktop App now and get ready to scan and organize.
Sonisto runs on Mac and Windows. Send yourself the link and download it on your computer.
