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Browser Extensions · head to head

Nimbus Screenshot vs Userscripts

Nimbus Screenshot logo

Nimbus Screenshot

Browser Extensions

Screen capture and video recording

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: Nimbus Screenshot nimbus Web has rebranded to FuseBase; nimbusweb.me now redirects to thefusebase.com, and the screenshot tool sits inside a broader client portal and AI workspace product; 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: Nimbus Screenshot covers Full page capture, Userscripts covers Built-in script editor.
  • Prices and features above were last checked on 15 September 2026.

Where they differ

Only the attributes on which Nimbus Screenshot and Userscripts actually diverge.

Attributes where Nimbus Screenshot and Userscripts differ
AttributeNimbus ScreenshotUserscripts
Pricing modelfreemiumopen-source
PlatformsChrome, Firefox, Edge, OperaSafari, macOS, iOS
Founded2014Unknown

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 Nimbus Screenshot

  • Full page capture
  • Area selection
  • Annotation tools
  • Video recording
  • Chrome support
  • Firefox support
  • Edge support
  • Opera support

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.

Nimbus Screenshot

  • Capturing full page and partial browser screenshotsnot Userscripts
  • Recording screen video from a browser tabnot Userscripts
  • Annotating captures before sharing themnot Userscripts

Userscripts

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

Where each one falls short

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

Nimbus Screenshot

  • Nimbus Web has rebranded to FuseBase; nimbusweb.me now redirects to thefusebase.com, and the screenshot tool sits inside a broader client portal and AI workspace product
  • No Nimbus-branded pricing, plan or storage limit remains published at the original domain
  • The destination product is positioned around client portals, AI agents and project management rather than a standalone screenshot extension

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

Nimbus Screenshot

Free
  • FreeFree
    • Screenshot capture
    • Basic annotation
    • Cloud storage

Userscripts

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

Which should you pick?

Choose Nimbus Screenshot if

  • You need full page capture.
  • You want to start without paying.
  • You work on Chrome, Firefox, Edge, Opera.
  • You also want area selection.
Nimbus Screenshot 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 Nimbus Screenshot or Userscripts better?
Neither clearly leads. Nimbus Screenshot 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, Nimbus Screenshot or Userscripts?
Nimbus Screenshot starts at Free and Userscripts at Free.
Does Nimbus Screenshot or Userscripts run on more platforms?
Nimbus Screenshot runs on Chrome, Firefox, Edge, Opera. Userscripts runs on Safari, macOS, iOS.
Can I use Nimbus Screenshot for free?
Both have a free tier, so you can try either at no cost before committing.
What is Nimbus Screenshot best used for?
Nimbus Screenshot is most often used for capturing full page and partial browser screenshots, recording screen video from a browser tab, annotating captures before sharing them. Of those, capturing full page and partial browser screenshots and recording screen video from a browser tab are not what Userscripts is typically brought in for.
What can Nimbus Screenshot do that Userscripts cannot?
Nimbus Screenshot covers Full page capture, Area selection, Annotation tools, Video recording. Userscripts covers Built-in script editor, Standard metadata support, GM API, Remote script updating.

Answered from the vendors’ own pages

Nimbus Screenshot: What is the pricing for FuseBase's Solo plan?

The Solo plan is free to start, includes a 14-day trial, and provides 1,000 AI requests, 1 portal, 1 client, 1,000 automation runs, and 5 hours of transcriptions per month.

Source
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
Nimbus Screenshot: What tiers does FuseBase offer?

FuseBase offers Solo (free), Essentials, Advanced (most popular), and Unlimited (custom pricing) plans. All paid plans include a 14-day free trial.

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
Nimbus Screenshot: What do I get with FuseBase's Advanced plan?

The Advanced plan includes 50,000 AI requests, 100 portals (or unlimited with contact), 1,000 clients, 50,000 automation runs, 300 hours of transcriptions, granular permissions, and white-label capability. Exact pricing requires checking or contacting for current rates.

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
Nimbus Screenshot: Can I pay annually for FuseBase and get a discount?

Yes. FuseBase offers annual billing options with discounts compared to monthly payments. Upgrades charge immediately while downgrades apply at the end of your billing cycle.

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
Nimbus Screenshot: What add-ons are available for FuseBase?

FuseBase offers paid add-ons including extra automation runs (1,000/month), additional client portals, transcription hours (20/month), and per-user FuseBase AI costs.

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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