User-Agent Switcher and Manager
Developer Tools
Spoof websites trying to gather information about your web navigation to deliver distinct content you may not want
Users
300K
Rating
4.3
Reviews
271
7D Growth
0|0%
Stable signalNo paid features detectedHigh-risk permissions
User-Agent Switcher for Chrome
Spoofs & Mimics User-Agent strings.
Users1MCurrent public install base
Rating3.9Store average score
Reviews2,677Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
4 assetsUser-Agent Switcher for Chrome Media preview
Trend
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User Growth Over Time
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7-day rating change
Start
3.86
Latest
3.86
7-day rating change
0.00
2026年7月13日2026年7月19日
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1-day growthFlat
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00%Technical snapshot
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Version2.0.2
ManifestV3
Size140KiB
Languages1English (United States)
Published
Store updated
Last crawled
English (United States)
Overview
Product summary
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Ever needed to quickly switch between user-agent strings on the fly? Developing a site that needs to work on both mobile browsers and desktop browsers? Sick of some archaic site blocking you because you're not using Netscape 4?
The User-Agent Switcher for Chrome is the answer. With this extension, you can quickly and easily switch between user-agent strings. Also, you can set up specific URLs that you want to spoof every time.
Please note that this does not provide improved privacy while browsing the Internet and that some sites might have other means to figure out that the browser is not what it pretends to be. Running this extension can have performance impact on your browsing experience due to its need to intercept and modify the data communicated to the server.
NOTE: if some sites have problems after using a mobile user-agent, and won't switch back no matter what you spoof, you will need to switch the user-agent back to Chrome *and* clear your cookies for the sites to treat the browser normally again.
By installing this item, you agree to the Google Terms of Service and Privacy Policy at https://www.google.com/intl/en/policies/.
Reviews
Recent review snapshot
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Store average score3.9Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average3.5Average computed only from synced review bodies below
Reviews with text1,224Synced review bodies
Total ratings / reviews2,677Chrome Web Store public rating/review count
Store average score: 3.9. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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Nice One! no need to PC Sharing for checking webpage to other browser such as IE6
Great work, my website is needed to be used from a Nintendo 3DS system, this extension is helping me to debug my website from my computer! Recomeneded for mobile website makers.
Works great. One thing I'd like is the option to, when the UA is set to IE, to run the <!--[if IE]> stuff. Other than that, great.
One suggestion: I used the permanent spoof list function. But it doesn't work when the spoofed website has some link that displays in pop up windows. (It only works when I manually switch the agent first that click on the link). Maybe the auto spoof-list is not fast enough to detect domain and switch before the browser check is done? or there is no automatic switching in this case?
Works fine, should have option for Windows Phone by default.
While it enables Chrome to act as different browsers, after short while I discovered that the "default" setting does not return Chrome to its original state; now I seldom can do search from the address bar as it kept informing me that instant search is not available, while previously I have no problem with that.
now i can use this to see what some parts of my website will look like on an iphone or android.
好用
Has wrong agent id for safari 4 should be Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10_5_8; en-us) AppleWebKit/531.22.7 (KHTML, like Gecko) Version/4.0.5 Safari/531.22.7
No way to dismiss it.