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Browser Extensions · head to head

Awesome Screenshot vs Greasemonkey

Awesome Screenshot logo

Awesome Screenshot

Browser Extensions

Screen capture and image annotation

From
Free
Rated
-
Full reviewWebsite
Greasemonkey logo

Greasemonkey

Browser Extensions

The original userscript manager, for Firefox

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Awesome Screenshot free browser extension with limited information about premium tier pricing on homepage; Greasemonkey firefox only. There is no Chrome, Edge or Safari build and there never has been.
  • They diverge on capability: Awesome Screenshot covers Screen capture, Greasemonkey covers Userscript execution.
  • Prices and features above were last checked on 15 September 2026.

Where they differ

Only the attributes on which Awesome Screenshot and Greasemonkey actually diverge.

Attributes where Awesome Screenshot and Greasemonkey differ
AttributeAwesome ScreenshotGreasemonkey
Pricing modelfreemiumopen-source
PlatformsChrome, Firefox, Edge, SafariFirefox
Founded2007Unknown

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 Awesome Screenshot

  • Screen capture
  • Annotation tools
  • Cloud storage
  • Screen recording
  • Chrome support
  • Firefox support
  • Edge support
  • Safari support

Only in Greasemonkey

  • Userscript execution
  • Built-in script editor
  • GM. API
  • @resource support
  • Script localisation
  • Firefox for Android

What people use each for

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

Awesome Screenshot

  • Screen recording for tutorials and documentationnot Greasemonkey
  • Screenshot annotation for design feedbacknot Greasemonkey
  • Team collaboration on visual communicationnot Greasemonkey
  • Bug reporting with visual evidencenot Greasemonkey
  • Social media content creationnot Greasemonkey

Greasemonkey

  • Restyling or de-cluttering a site you use dailynot Awesome Screenshot
  • Automating a repetitive action on a web applicationnot Awesome Screenshot
  • Adding a missing feature to a site you do not controlnot Awesome Screenshot
  • Running userscripts on Firefox for Androidnot Awesome Screenshot
  • Writing and testing your own scripts in the browsernot Awesome Screenshot

Where each one falls short

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

Awesome Screenshot

  • Free browser extension with limited information about premium tier pricing on homepage
  • Pricing details not fully disclosed on main page

Greasemonkey

  • Firefox only. There is no Chrome, Edge or Safari build and there never has been.
  • Its API diverged from the Tampermonkey conventions most shared scripts are written against, so a script from a sharing site may need adjusting to run.
  • The dashboard is plainer than Tampermonkey's, with no diff view when a script updates itself.
  • No cloud sync of the kind Tampermonkey and Violentmonkey offer; moving machines means exporting.
  • A userscript manager can read and rewrite every page you visit, so the security of the arrangement depends entirely on the scripts you choose to install.

Pricing, plan by plan

Awesome Screenshot

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

Greasemonkey

Free
  • Open sourceFree
    • Unlimited scripts
    • Built-in editor
    • No account required

Which should you pick?

Choose Awesome Screenshot if

  • You need screen capture.
  • You want to start without paying.
  • You work on Chrome, Firefox, Edge, Safari.
  • You also want annotation tools.
Awesome Screenshot review

Choose Greasemonkey if

  • You need userscript execution.
  • You want to start without paying.
  • You work on Firefox.
  • You also want built-in script editor.
Greasemonkey review

Questions people ask

Is Awesome Screenshot or Greasemonkey better?
Neither clearly leads. Awesome Screenshot starts at Free and Greasemonkey at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Awesome Screenshot or Greasemonkey?
Awesome Screenshot starts at Free and Greasemonkey at Free.
Does Awesome Screenshot or Greasemonkey run on more platforms?
Awesome Screenshot runs on Chrome, Firefox, Edge, Safari. Greasemonkey runs on Firefox.
Can I use Awesome Screenshot for free?
Both have a free tier, so you can try either at no cost before committing.
What is Awesome Screenshot best used for?
Awesome Screenshot is most often used for screen recording for tutorials and documentation, screenshot annotation for design feedback, team collaboration on visual communication, bug reporting with visual evidence. Of those, screen recording for tutorials and documentation and screenshot annotation for design feedback are not what Greasemonkey is typically brought in for.
What can Awesome Screenshot do that Greasemonkey cannot?
Awesome Screenshot covers Screen capture, Annotation tools, Cloud storage, Screen recording. Greasemonkey covers Userscript execution, Built-in script editor, GM. API, @resource support.

Answered from the vendors’ own pages

Greasemonkey: Is Greasemonkey still maintained?

Yes. Version 4.14 was released on 2 June 2026, and the project has an active repository, bug tracker and discussion groups.

Source
Greasemonkey: Does Greasemonkey work on Chrome?

No. It is a Firefox extension and has never shipped for Chrome. Violentmonkey and Tampermonkey are the equivalents there.

Source
Greasemonkey: Will Tampermonkey scripts run in Greasemonkey?

Often, but not always. Greasemonkey's API diverged from the conventions most shared scripts are written against, so a script may need its header or its GM calls adjusted.

Source
Greasemonkey: Does Greasemonkey run on mobile?

On Firefox for Android, from version 4.12. There is no iOS build, because Firefox on iOS cannot load extensions of this kind.

Source
Greasemonkey: What is the GM API?

The set of functions a userscript manager exposes to scripts, named after Greasemonkey, which defined it. Greasemonkey supports the promise-based GM. form including GM.xmlHttpRequest and GM.registerMenuCommand.

Source
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