The world's most popular userscript manager

Tampermonkey promo image
What is Tampermonkey?

Tampermonkey is a very popular Edge add-on by Jan Biniok. This add-on has 9,991,367 weekly active users, a good user rating of 4.90, and is most similar to Take Webpage Screenshots Entirely - FireShot and LastPass: Free Password Manager. The latest version, 4.18.1, was updated 5 months ago.

Stats date:
Rating: 4.90 (3,948)
Version: 4.18.1 (Last updated: 2023-01-06)
Creation date: 2021-05-06
Manifest version: 2
  • notifications
  • unlimitedStorage
  • tabs
  • idle
  • webNavigation
  • webRequest
  • webRequestBlocking
  • storage
  • contextMenus
  • chrome://favicon/
  • See more
Size: 1.49M
Risk impact: Very high risk impact
Risk likelihood: Very low risk likelihood

Other platforms

Tampermonkey (v4.19.0)
70,411 10,000,000
Tampermonkey (v4.18.1)
4,387 603,630
Tampermonkey is the most popular userscript manager, with over 10 million weekly users. It's available for Microsoft Edge, Chrome, Safari, Opera Next, and Firefox. 

Tampermonkey makes it very easy to manage your userscripts and provides features like a clear overview over the running scripts, a built-in editor, ZIP-based import and export (Google Drive, Dropbox, OneDrive, WebDAV), automatic update checks and also browser and cloud storage based synchronization. And finally it's compatible to Greasemonkey up to version 3.x.

For a full overview please take a look at the FAQ or just install TM. ;)

Thanks for using Tampermonkey. :)


Please DON'T report bugs by a review here, BUT at one of these pages:
 - http://tampermonkey.net/bug
 - https://github.com/derjanb/tampermonkey/issues
See more
User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Edge Add-on Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • Very useful
  • Good extension
  • Great for downloading and using scripts
  • Stable for unlocking features on websites
  • May cause issues in restricted environments
  • Some users are unsure how to use it
  • May be used for malicious purposes with malicious scripts
Most mentioned
  • Useful
  • Stable
  • Good
  • Great
  • Script
  • Malicious
  • Unlocking features
View all user reviews
Risk impact

Tampermonkey requires a lot of risky permissions and is not safe to use. Avoid installing this add-on unless you absolutely trust this publisher.

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypass your security settings, and access your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Risk likelihood

Tampermonkey has earned a good reputation and can be trusted.

Risk likelihood measures the probability that an Edge add-on may turn malicious. This is determined by the publisher and the Edge add-on reputation on Edge Add-on Store, the amount of time the Edge add-on has been around, and other signals about the Edge add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing an Edge add-on, especially ones with higher risk impact and/or higher risk likelihood.

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Promo video
Similar add-ons

Here are some Edge add-ons that are similar to Tampermonkey:

Take Webpage Screenshots Entirely - FireShot Take Webpage Screenshots Entirely - FireShot
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LastPass: Free Password Manager LastPass: Free Password Manager
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User count: 3,312,457
Rating: 878
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User count: 1,105,185
Rating: 329
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