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Violentmonkey

Open source userscript manager

As of 30 August 2026, Violentmonkey is free to use. Violentmonkey is an open-source userscript manager that provides support for installing and running userscripts. Softwr lists it under Browser Extensions. Violentmonkey is launched in 2013, available on Browser extension.

Overview

What Violentmonkey does

Violentmonkey is an open-source userscript manager that provides support for installing and running userscripts. It offers a clean interface, fast performance, and supports scripts from popular userscript repositories.

What people use it for

  • Run open-source userscripts to customize or automate web pages
  • Import scripts compatible with Greasemonkey and Tampermonkey formats
  • Sync scripts and settings across browsers via Dropbox, OneDrive, Google Drive, or WebDAV
  • Batch import/export scripts as zip files

The honest half

Where it falls short

Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Violentmonkey.

  • Smaller script ecosystem compared to Tampermonkey which has larger user base and more available scripts
  • Less marketing and visibility results in lower adoption compared to more widely-known alternatives
  • Community maintenance model means slower feature development compared to commercial alternatives

Cross-shopped

What people choose instead of Violentmonkey

Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.

  • Violentmonkey logo
    Violentmonkey
    vs
    Awesome Screenshot logo
    Awesome Screenshot

    Awesome Screenshot: Browser extension for screenshot capture and annotation; while not a userscript manager, serves as complementary browser automation tool.

  • Violentmonkey logo
    Violentmonkey
    vs
    Dark Reader logo
    Dark Reader

    Dark Reader: Browser extension applying dark mode to websites; shares similar browser extension framework and automation capabilities.

  • Violentmonkey logo
    Violentmonkey
    vs
    Privacy Badger logo
    Privacy Badger

    Privacy Badger: Browser extension for privacy protection; uses similar WebExtensions API and browser automation approach as Violentmonkey.

Capabilities

Features

  • Userscript support

  • Clean interface

  • Cloud sync

  • Script editor

  • Chrome support

    Available on chrome

  • Firefox support

    Available on firefox

  • Edge support

    Available on edge

  • Opera support

    Available on opera

Answered, with sources

Questions people ask

Each answer names the page it came from, so you can check it rather than take our word for it.

Is Violentmonkey open-source?

Yes. Violentmonkey is fully open-source and available on GitHub, making it free to use and community-maintained unlike Tampermonkey which has a larger proprietary ecosystem.

Source
What browsers does Violentmonkey support?

Violentmonkey works on browsers with WebExtensions support, including Chrome, Firefox, Edge, and other Chromium-based browsers.

Source
How does Violentmonkey compare to Tampermonkey in performance?

Community benchmarks show Violentmonkey uses about 15 to 30 percent less RAM on Chrome compared to Tampermonkey when managing many open tabs.

Source
What is the current version of Violentmonkey?

Violentmonkey reached version 2.46.0 as of July 31, 2026, with active ongoing development and regular updates to the open-source project.

Source

Behind it

Who makes Violentmonkey

Company
Violentmonkey
Based in
Open Source Project
Founders
gera2ld

Timeline

Violentmonkey over time

  1. Milestone2026-07-31

    Violentmonkey version 2.46.0 released with latest updates

    Source
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Keep looking

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Softwr does not host reviews and shows no star rating for Violentmonkey, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.

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