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Browser Extensions · head to head

Userscripts vs Vue.js Devtools

Userscripts logo

Userscripts

Browser Extensions

Open-source userscript manager for Safari on Mac and iOS

From
Free
Rated
-
Full reviewWebsite
Vue.js Devtools logo

Vue.js Devtools

Browser Extensions

Browser DevTools extension for debugging Vue.js

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: 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.; Vue.js Devtools primarily a developer debugging tool, not intended for production use
  • They diverge on capability: Userscripts covers Built-in script editor, Vue.js Devtools covers Component tree.
  • Prices and features above were last checked on 15 September 2026.

Where they differ

Only the attributes on which Userscripts and Vue.js Devtools actually diverge.

Attributes where Userscripts and Vue.js Devtools differ
AttributeUserscriptsVue.js Devtools
Pricing modelopen-sourceUnknown
PlatformsSafari, macOS, iOSBrowser extensions, Vite plugin, Standalone app
FoundedUnknown2014

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

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 Userscripts

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

Only in Vue.js Devtools

  • Component tree
  • Vuex state
  • Vue Router
  • Performance timeline
  • Chrome support
  • Firefox support
  • Edge support

What people use each for

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

Userscripts

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

Vue.js Devtools

  • Vue.js component hierarchy inspectionnot Userscripts
  • Application state debuggingnot Userscripts
  • Component relationship visualizationnot Userscripts

Where each one falls short

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

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.

Vue.js Devtools

  • Primarily a developer debugging tool, not intended for production use
  • Limited to browser extension format for most users; requires Vite plugin or standalone app for alternative use

Pricing, plan by plan

Userscripts

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

Vue.js Devtools

Free

No published plan breakdown. See the Vue.js Devtools review.

Which should you pick?

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

Choose Vue.js Devtools if

  • You need component tree.
  • You want to start without paying.
  • You work on Browser extensions, Vite plugin, Standalone app.
  • You also want vuex state.
Vue.js Devtools review

Questions people ask

Is Userscripts or Vue.js Devtools better?
Neither clearly leads. Userscripts starts at Free and Vue.js Devtools at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Userscripts or Vue.js Devtools?
Userscripts starts at Free and Vue.js Devtools at Free.
Does Userscripts or Vue.js Devtools run on more platforms?
Userscripts runs on Safari, macOS, iOS. Vue.js Devtools runs on Browser extensions, Vite plugin, Standalone app.
Can I use Userscripts for free?
Both have a free tier, so you can try either at no cost before committing.
What is Userscripts best used for?
Userscripts is most often used for running userscripts on safari without paying for tampermonkey, running userscripts on an iphone or ipad, writing scripts on a mac and syncing them to ios, blocking or restyling site elements safari content blockers cannot reach. Of those, running userscripts on safari without paying for tampermonkey and running userscripts on an iphone or ipad are not what Vue.js Devtools is typically brought in for.
What can Userscripts do that Vue.js Devtools cannot?
Userscripts covers Built-in script editor, Standard metadata support, GM API, Remote script updating. Vue.js Devtools covers Component tree, Vuex state, Vue Router, Performance timeline.

Answered from the vendors’ own pages

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
Vue.js Devtools: How is Vue.js licensed?

Vue.js is licensed under the MIT License, which permits commercial use, modification, distribution, and private use without restrictions.

Source
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
Vue.js Devtools: Can I use Vue.js commercially?

Yes. Vue.js is MIT-licensed open source software with no commercial use restrictions. You can use it freely in commercial products.

Source
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
Vue.js Devtools: What support options are available for Vue.js?

Vue.js offers free community support through Discord, GitHub Discussions, and DEV Community. Paid learning resources include Vue Mastery and Vue School, plus official Vue.js Certification is available.

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
Vue.js Devtools: How does Vue.js sustain development?

Vue.js is sustained through optional sponsorships at Platinum and Gold tiers, and ancillary commercial services including training, certification, and a jobs board.

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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