Tampermonkey AlternativesUserscript Managers and other similar apps like Tampermonkey

Alternatives list

1. 

   

   Greasemonkey

    407 likes

   Greasemonkey is a Firefox extension that allows you to customize the way webpages look and function.

   13 Greasemonkey alternatives

   Cost / License

   • Free
   • Open Source

   Application type

   • Userscript Manager

   Origin

   • United States

   Platforms

   • Mozilla Firefox

   • United States

   

   

   

   More about Greasemonkey  

   

   Good alternative?Is Greasemonkey a good alternative to Tampermonkey?

    
2. 

   

   Violentmonkey

    91 likes

   Violentmonkey provides userscript support for Chrome, Opera, Maxthon and Firefox supporting most scripts for Greasemonkey and Tampermonkey.

   13 Violentmonkey alternatives

   Cost / License

   • Free
   • Open Source (MIT)

   Application type

   • Userscript Manager

   Origin

   • Singapore

   Platforms

   • Microsoft Edge
   • Google Chrome
   • Mozilla Firefox

   • Singapore

   

   

   

   More about Violentmonkey  

   

   Good alternative?Is Violentmonkey a good alternative to Tampermonkey?

    

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   5comments

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   Violentmonkey vs Tampermonkey Comments

   Top Positive Comment by eagleeyez · Apr 30, 2025

   ViolentMonkey is lightweight and faster but lacks features needed to manage hundreds of userscripts and its developer isn't willing to add any of them. If you’re a power user, stick with TamperMonkey or choose another alternative.

   Positive comment by Guest · Mar 10, 2024

   Similar to Tampermonkey user-experience wise.

   Positive comment by K0RR · Jan 5, 2024

   It's open source unlike tampermonkey

   3 of 5 comments

   

   

   • Violentmonkey is Free and Open SourceTampermonkey is Free and Proprietary
   • Violentmonkey is LightweightTampermonkey is not according to our users
4. 

   

   Stay - Userscripts Extension

    2 likes

   Stay is a new generation browser script manager on Safari. It supports both native scripts and tampermonkey and violentmonkey scripts.

   Cost / License

   • Freemium
   • Proprietary

   Application type

   • Userscript Manager

   Origin

   • China

   Platforms

   • Mac
   • iPhone
   • iPad
   • Android
   • Google Chrome
   • Mozilla Firefox
   • Safari
   • Android Tablet

   • China

   

   

   

   +2

   

   More about Stay - Userscripts Extension  

   

   Good alternative?Is this a good alternative to Tampermonkey?

    
5. 

   

   FireMonkey

    10 likes

   Firemonkey is a totally new combined user-Scripts and user-Style manager. While it has similar functions to other user-Script managers like GreaseMonkey/Tampermonkey/Violentmonkey, and user-CSS managers like Stylish/Stylus/xStyle, there are also differences.

   Cost / License

   • Free
   • Open Source (MPL-2.0)

   Application type

   • Userscript Manager

   Platforms

   • Mac
   • Windows
   • Linux
   • Android
   • Firefox

   

   

   More about FireMonkey  

   

   Good alternative?Is FireMonkey a good alternative to Tampermonkey?

    
6. 

   

   Greasemonkey Port

    1 like

   Greasemonkey Port is a userscript manager for SeaMonkey, originally written by Aaron Boodman and currently SeaMonkey front-end maintained by Marti, Ratty and/or Farby with some backend support from Anthony Lieuallen and Johan Sundström.

   Cost / License

   • Free
   • Open Source

   Application type

   • Userscript Manager

   Platforms

   • SeaMonkey

   

   More about Greasemonkey Port  

   

   Good alternative?Is Greasemonkey Port a good alternative to Tampermonkey?

    
8. 

   

   Userscripts

    10 likes

   An open-source userscript editor for Safari.

   Cost / License

   • Free
   • Open Source (GPL-3.0)

   Application type

   • Userscript Manager

   Platforms

   • Mac
   • Safari
   • iPhone
   • iPad

   

   More about Userscripts  

   

   Good alternative?Is Userscripts a good alternative to Tampermonkey?

    

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   1comment

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   Userscripts vs Tampermonkey Comments

   Positive comment by kdakdkzxobincewjvj · Aug 11, 2020

   Lightweight, open source, and is great for deploying userscripts without any other bells and whistles

   1 of 1 comments

   

   

   • Userscripts is Free and Open SourceTampermonkey is Free and Proprietary
   • Userscripts is LightweightTampermonkey is not according to our users
9. 

   

   Powerlet

    2 likes

   Quickly find and run your bookmarklets.

   Cost / License

   • Free
   • Open Source (MIT)

   Application type

   • Userscript Manager

   Platforms

   • Online
   • Chrome OS
   • Google Chrome
   • Firefox

   

   More about Powerlet  

   

   Good alternative?Is Powerlet a good alternative to Tampermonkey?

    
10. 

    

    Frida

     Like

    Frida is a free open-source dynamic instrumentation toolkit for developers, reverse engineers, and security researchers created and supported by NowSecure researchers.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Self-Hosted
    • Python
    • Node.JS
    • npm

    

    

    More about Frida  

    

    Good alternative?Is Frida a good alternative to Tampermonkey?

     

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    1comment

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    Frida vs Tampermonkey Comments

    Negative comment by davar · Feb 21, 2026

    Frida is not a userscript manager for web browsers

    1 of 1 comments

    

    

    • Frida is Free and ProprietaryTampermonkey is also Free and Proprietary
11. 

    

    Launchlet

     1 like

    Customize the web with JavaScript or CSS.

    Cost / License

    • Free
    • Open Source

    Application type

    • Userscript Manager

    Platforms

    • Online
    • RemoteStorage

    

    

    More about Launchlet  

    

    Good alternative?Is Launchlet a good alternative to Tampermonkey?

     

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    1comment

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    Launchlet vs Tampermonkey Comments

    Positive comment by rosano · Dec 15, 2020

    No need to use an extension, data syncs between devices, 0data.

    1 of 1 comments

    

    

    • Launchlet is Free and Open SourceTampermonkey is Free and Proprietary
    • Launchlet is Privacy focusedTampermonkey is not according to our users
12. 

    

    Macaque

     1 like

    Macaque is a UserScript Manager Browser Extension. Macaque provides you the ability to add, edit, remotely edit, as well as view the console logs for each UserScript!.

    Cost / License

    • Paid
    • Proprietary

    Application type

    • Userscript Manager

    Platforms

    • Mac
    • iPhone
    • iPad

    

    

    

    +7

    

    More about Macaque  

    

    Good alternative?Is Macaque a good alternative to Tampermonkey?

     
13. 

    

    Site Connector

     2 likes

    Save videos on YouTube, Vimeo and other websites in a few clicks! Share any webpage's content to Twitter, Facebook the same easy way... and much more!

    Cost / License

    • Free
    • Proprietary

    Origin

    • Czechia
    • EU

    Platforms

    • Mac
    • Windows
    • Linux
    • Chrome OS
    • Google Chrome

    • Czechia
    • EU

    

    

    

    More about Site Connector  

    

    Good alternative?Is Site Connector a good alternative to Tampermonkey?

     

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    1comment

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    Site Connector vs Tampermonkey Comments

    Negative comment by Guest · Jan 25, 2016

    it does nothing that tampermonkey does

    1 of 1 comments

    

    

    • Site Connector is Free and ProprietaryTampermonkey is also Free and Proprietary
14. 

    

    Man in the Middle

     4 likes

    Modify requests, inject JavaScript and CSS into pages.

    Cost / License

    • Free
    • Open Source (GPL-3.0)

    Application type

    • Userscript Manager

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • UC Browser
    • CentBrowser
    • Google Chrome
    • Yandex.Browser
    • Opera
    • Chromium
    • Firefox

    

    

    

    +3

    

    More about Man in the Middle  

    

    Good alternative?Is Man in the Middle a good alternative to Tampermonkey?