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Technology · head to head

GitHub vs Userscripts

GitHub logo

GitHub

Technology

Where the world builds software

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: GitHub acquired by Microsoft in 2018, reducing pure independence despite operational autonomy; 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: GitHub covers Git repositories, 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 GitHub and Userscripts actually diverge.

Attributes where GitHub and Userscripts differ
AttributeGitHubUserscripts
Pricing modelsubscriptionopen-source
PlatformsWeb, Desktop, MobileSafari, macOS, iOS
CategoryTechnologyBrowser Extensions
Founded2008Unknown

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 GitHub

  • Git repositories
  • Pull requests
  • Code review
  • Issues & projects
  • GitHub Actions CI/CD
  • GitHub Pages
  • Security scanning
  • Dependency management

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.

GitHub

  • Version controlnot Userscripts
  • Code collaborationnot Userscripts
  • CI/CD pipelinesnot Userscripts
  • Project managementnot Userscripts
  • Documentation hostingnot Userscripts

Userscripts

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

Where each one falls short

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

GitHub

  • Acquired by Microsoft in 2018, reducing pure independence despite operational autonomy
  • Primary focus on source control differs from purpose-built project management tools like Jira
  • Pricing for enterprise features and private repositories adds up compared to some self-hosted alternatives

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

GitHub

Free
  • FreeFree
    • Unlimited public/private repos
    • 2,000 CI/CD minutes/month
    • 500MB package storage
  • Team$4/month
    • Everything in Free
    • 3,000 CI/CD minutes/month
    • 2GB package storage
  • Enterprise$21/month
    • Everything in Team
    • 50,000 CI/CD minutes/month
    • 50GB package storage

Userscripts

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

Which should you pick?

Choose GitHub if

  • You need git repositories.
  • You want to start without paying.
  • You work on Web, Desktop, Mobile.
  • You also want pull requests.
GitHub 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 GitHub or Userscripts better?
Neither clearly leads. GitHub 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, GitHub or Userscripts?
GitHub starts at Free and Userscripts at Free.
Does GitHub or Userscripts run on more platforms?
GitHub runs on Web, Desktop, Mobile. Userscripts runs on Safari, macOS, iOS.
Can I use GitHub for free?
Both have a free tier, so you can try either at no cost before committing.
What is GitHub best used for?
GitHub is most often used for version control, code collaboration, ci/cd pipelines, project management. Of those, version control and code collaboration are not what Userscripts is typically brought in for.
What can GitHub do that Userscripts cannot?
GitHub covers Git repositories, Pull requests, Code review, Issues & projects. Userscripts covers Built-in script editor, Standard metadata support, GM API, Remote script updating.

Answered from the vendors’ own pages

GitHub: What is a Git repository and how does GitHub use it?

A repository is the centralized database that stores the complete collection of files and folders for a codebase, along with the revision history. GitHub uses Git to provide distributed version control access to repositories with version tracking, branching, and collaboration features.

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
GitHub: How does GitHub authentication work?

When you connect to a GitHub repository from Git, you need to authenticate with GitHub using either HTTPS or SSH. GitHub supports multiple authentication methods including passwords, personal access tokens, SSH keys, and GitHub Apps.

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
GitHub: How long has GitHub been operating?

GitHub was founded in 2008 and launched publicly on April 10, 2008, making it the dominant git hosting platform for nearly two decades.

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
GitHub: Who owns GitHub and when did the acquisition occur?

Microsoft acquired GitHub for $7.5 billion USD, with the deal announced June 4, 2018 and completed October 26, 2018. GitHub operates as an independent subsidiary within Microsoft.

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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