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Cybersecurity · head to head

Trivy vs Userscripts

Trivy logo

Trivy

Cybersecurity

Open-source vulnerability and misconfiguration scanner

From
Free
Rated
-
Full reviewWebsite
Userscripts logo

Userscripts

Browser Extensions

Open-source userscript manager for Safari on Mac and iOS

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Trivy reports what public advisory databases know, so coverage varies by ecosystem and unfixed CVEs create noise; Userscripts safari cannot let extensions bypass a site's Content Security Policy, so strict sites produce "Refused to execute a script" errors that the @inject-into workaround does not always fix.
  • They diverge on capability: Trivy covers Multi-target scanning, Userscripts covers Built-in script editor.
  • Prices and features above were last checked on 17 September 2026.

Where they differ

Only the attributes on which Trivy and Userscripts actually diverge.

Attributes where Trivy and Userscripts differ
AttributeTrivyUserscripts
Pricing modelOpen source, no licence feeopen-source
PlatformsLinux, macOS, Windows, Docker, KubernetesSafari, macOS, iOS
CategoryCybersecurityBrowser Extensions

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Trivy

  • Multi-target scanning
  • Vulnerability detection
  • Misconfiguration checks
  • Secret detection

Only in Userscripts

  • Built-in script editor
  • Standard metadata support
  • GM API
  • Remote script updating
  • iCloud sync
  • Per-page popup

What people use each for

The jobs each tool is most often brought in to do.

Trivy

  • Failing a pull request when a container image introduces a known CVEnot Userscripts
  • Scanning Terraform and Kubernetes manifests for misconfiguration before applynot Userscripts
  • Catching committed secrets as part of an existing CI stepnot Userscripts

Userscripts

  • Running userscripts on Safari without paying for Tampermonkeynot Trivy
  • Running userscripts on an iPhone or iPadnot Trivy
  • Writing scripts on a Mac and syncing them to iOSnot Trivy
  • Blocking or restyling site elements Safari content blockers cannot reachnot Trivy
  • Keeping a script library under an open-source licencenot Trivy

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Trivy

  • Reports what public advisory databases know, so coverage varies by ecosystem and unfixed CVEs create noise
  • No built-in triage or exception workflow, so suppressing accepted risk is managed in config files
  • Findings are point-in-time from CI, with no continuous runtime monitoring unless you add the commercial platform

Userscripts

  • Safari cannot let extensions bypass a site's Content Security Policy, so strict sites produce "Refused to execute a script" errors that the @inject-into workaround does not always fix.
  • Apple only. There is no Chrome, Firefox or Edge build, so it cannot be a cross-browser answer.
  • iCloud sync is documented as having delays, which is awkward when editing the same script on two devices.
  • Requires macOS 12 and Safari 14.1, or iOS 15.1, so older Apple hardware is excluded.
  • GPL v3 means a commercial licence is required for non-open-source use, which matters if you are embedding rather than just using it.

Pricing, plan by plan

Trivy

Free
  • TrivyFree
    • Full scanner
    • Unlimited scans
    • Community support

Userscripts

Free
  • FreeFree
    • Full functionality
    • GPL v3 licensed
    • macOS, iOS and iPadOS

Which should you pick?

Choose Trivy if

  • You need multi-target scanning.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, Docker, Kubernetes.
  • You also want vulnerability detection.
Trivy review

Choose Userscripts if

  • You need built-in script editor.
  • You want to start without paying.
  • You work on Safari, macOS, iOS.
  • You also want standard metadata support.
Userscripts review

Questions people ask

Is Trivy or Userscripts better?
Neither clearly leads. Trivy starts at Free and Userscripts at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Trivy or Userscripts?
Trivy starts at Free and Userscripts at Free.
Does Trivy or Userscripts run on more platforms?
Trivy runs on Linux, macOS, Windows, Docker, Kubernetes. Userscripts runs on Safari, macOS, iOS.
Can I use Trivy for free?
Both have a free tier, so you can try either at no cost before committing.
What is Trivy best used for?
Trivy is most often used for failing a pull request when a container image introduces a known cve, scanning terraform and kubernetes manifests for misconfiguration before apply, catching committed secrets as part of an existing ci step. Of those, failing a pull request when a container image introduces a known cve and scanning terraform and kubernetes manifests for misconfiguration before apply are not what Userscripts is typically brought in for.
What can Trivy do that Userscripts cannot?
Trivy covers Multi-target scanning, Vulnerability detection, Misconfiguration checks, Secret detection. Userscripts covers Built-in script editor, Standard metadata support, GM API, Remote script updating.

Answered from the vendors’ own pages

Trivy: Is Trivy free?

Yes, open source from Aqua Security with no licence fee. Aqua sells a commercial platform around it.

Userscripts: Is Userscripts for Safari free?

Yes, free on the App Store and licensed under GPL v3. A commercial licence is required for use in something that is not itself open source.

Source
Trivy: What can Trivy scan?

Container images, filesystems, Git repositories, Kubernetes clusters and infrastructure-as-code, for vulnerabilities, misconfigurations, secrets and licences.

Userscripts: Does it work on iPhone?

Yes, on iOS and iPadOS 15.1 or later, which makes it one of the few ways to run userscripts on an iPhone.

Source
Trivy: Does Trivy need a server?

No. It is a single binary, which is a large part of why it became a default in CI.

Userscripts: Why do I get "Refused to execute a script" errors?

Safari does not let extensions bypass a site's Content Security Policy the way other browsers do. The documented workaround is changing the script's @inject-into setting, though it does not resolve every case.

Source
Userscripts: Do my scripts sync between Mac and iPhone?

Yes, over iCloud, though the project notes the sync can be delayed rather than immediate.

Source
Userscripts: What are the system requirements?

macOS 12 or later with Safari 14.1 or later, or iOS and iPadOS 15.1 or later.

Source
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