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Browser Extensions · head to head

Greasemonkey vs Raindrop.io

Greasemonkey logo

Greasemonkey

Browser Extensions

The original userscript manager, for Firefox

From
Free
Rated
-
Full reviewWebsite
Raindrop.io logo

Raindrop.io

Browser Extensions

All-in-one bookmark manager

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Greasemonkey firefox only. There is no Chrome, Edge or Safari build and there never has been.; Raindrop.io no offline access to bookmarks
  • They diverge on capability: Greasemonkey covers Userscript execution, Raindrop.io covers Bookmark management.
  • Prices and features above were last checked on 15 September 2026.

Where they differ

Only the attributes on which Greasemonkey and Raindrop.io actually diverge.

Attributes where Greasemonkey and Raindrop.io differ
AttributeGreasemonkeyRaindrop.io
Pricing modelopen-sourceUnknown
PlatformsFirefoxWeb, Chrome, Firefox, Safari, Edge, macOS, Windows, iOS, Android
FoundedUnknown2013

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 Greasemonkey

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

Only in Raindrop.io

  • Bookmark management
  • Collections
  • Full-text search
  • Duplicate detection
  • Chrome support
  • Firefox support
  • Edge support
  • Safari support

What people use each for

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

Greasemonkey

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

Raindrop.io

  • Organizing research materials across multiple projects with instant previewsnot Greasemonkey
  • Backing up web articles and pages before disappearing from the internetnot Greasemonkey
  • Tagging and annotating content for collaborative team research with highlightsnot Greasemonkey
  • Consolidating bookmarks from Twitter, YouTube, and Dropbox into unified collectionsnot Greasemonkey

Where each one falls short

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

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.

Raindrop.io

  • No offline access to bookmarks
  • Free plan limited to 100 MB per month file uploads
  • Free plan limited to 3 highlights per bookmark, Pro unlimited
  • Full-text search only available in Pro plan
  • No self-hosted deployment option
  • No enterprise SSO or SAML support

Pricing, plan by plan

Greasemonkey

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

Raindrop.io

Free
  • FreeFree
    • Unlimited bookmarks and collections
    • Basic organization with tags and filters
    • Cross-device syncing
  • Pro$3.17/month
    • Everything in Free
    • Full-text search of all page content
    • Permanent web archives of saved pages

Which should you pick?

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

Choose Raindrop.io if

  • You need bookmark management.
  • You want to start without paying.
  • You work on Web, Chrome, Firefox, Safari, Edge, macOS, Windows, iOS, Android.
  • You also want collections.
Raindrop.io review

Questions people ask

Is Greasemonkey or Raindrop.io better?
Neither clearly leads. Greasemonkey starts at Free and Raindrop.io at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Greasemonkey or Raindrop.io?
Greasemonkey starts at Free and Raindrop.io at Free.
Does Greasemonkey or Raindrop.io run on more platforms?
Greasemonkey runs on Firefox. Raindrop.io runs on Web, Chrome, Firefox, Safari, Edge, macOS, Windows, iOS, Android.
Can I use Greasemonkey for free?
Both have a free tier, so you can try either at no cost before committing.
What is Greasemonkey best used for?
Greasemonkey is most often used for restyling or de-cluttering a site you use daily, automating a repetitive action on a web application, adding a missing feature to a site you do not control, running userscripts on firefox for android. Of those, restyling or de-cluttering a site you use daily and automating a repetitive action on a web application are not what Raindrop.io is typically brought in for.
What can Greasemonkey do that Raindrop.io cannot?
Greasemonkey covers Userscript execution, Built-in script editor, GM. API, @resource support. Raindrop.io covers Bookmark management, Collections, Full-text search, Duplicate detection.

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
Raindrop.io: Does Raindrop.io work offline?

No, Raindrop.io is a cloud-based service and does not support offline access to your bookmarks. An offline mode has been heavily requested by users but is not yet available.

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
Raindrop.io: Can I export all my bookmarks from Raindrop.io?

Yes. You can export your entire account, individual collections, or selected bookmarks in HTML (Netscape Bookmarks format), CSV, or TXT formats. Pro users can create automatic daily backups with up to 30 retained versions.

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
Raindrop.io: What is the difference between the free and Pro plans?

The free plan offers unlimited bookmarks and collections with basic organization. Pro ($38/year) adds full-text search of page content, permanent web archives, AI tag suggestions, file uploads up to 10GB/month, automatic backups, and an AI assistant for managing bookmarks.

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
Raindrop.io: How much can I upload to Raindrop.io on the free plan?

Free users are limited to 100 MB per month in file uploads, with individual files capped at 100 MB. Pro users get 10 GB per month with 300 MB per file.

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
Raindrop.io: Does Raindrop.io offer self-hosting or SSO for teams?

No, Raindrop.io is a cloud-only service. There is no self-hosted option or enterprise SSO (SAML/LDAP) support. Authentication is limited to email/password, Google, or Apple sign-in.

Source
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