Bouncer is a simple yet powerful bookmarklet that helps you quickly retrieve user IDs from popular social media platforms like Twitter, Facebook, Instagram, TikTok and Reddit. Whether you're an OSINT enthusiast, a marketer, or just curious, Bouncer makes it easy to get the information you need with just one click.
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Right-click on your bookmarks bar and select "Add page" or "Add bookmark."
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Name the bookmark as "Bouncer" or anything you prefer.
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In the URL field, paste the following code:
javascript:(function(){try{var e=window.location.href;if(e.includes("twitter.com")){var t=document.evaluate('//script[@type="application/ld+json"]',document.lastChild,null,XPathResult.ANY_TYPE,null).iterateNext().textContent,n=JSON.parse(t),i=n.author&&n.author.identifier;i?alert("Twitter User ID: "+i):alert("Identifier not found!")}else if(e.includes("facebook.com")){var o=document.documentElement.innerHTML,r=o.match(/"userID":"(\d+)"/);r&&r[1]?alert("Facebook User ID: "+r[1]):alert("User ID not found on this page.")}else if(e.includes("instagram.com")){var a=document.documentElement.innerHTML,r=a.match(/"userID":"(\d+)"/);r&&r[1]?alert("Instagram User ID: "+r[1]):alert("User ID not found on this page.")}else if(e.includes("tiktok.com")){var c=document.documentElement.innerHTML,r=c.match(/"user":{"id":"(\d+)"/);r&&r[1]?alert("TikTok User ID: "+r[1]):alert("User ID not found on this page.")}else if(e.includes("reddit.com/user/")){var n=e.split("/user/")[1].split("/")[0],o=document.createElement("script");o.src="https://www.reddit.com/user/"+encodeURIComponent(n)+"/about.json?jsonp=displayRedditUserId",document.body.appendChild(o),window.displayRedditUserId=function(e){e&&e.data&&e.data.id?alert("Reddit User ID: "+e.data.id):alert("User ID not found on this page.")}}else alert("This bookmarklet only works on Twitter, Facebook, Instagram, TikTok, or Reddit.")}catch(e){alert("Error fetching or processing data: "+e.message)}})();
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Save the bookmark.
- Navigate to the profile page of a user on Twitter, Facebook, Instagram, TikTok or Reddit.
- Click on the "Bouncer" bookmarklet in your bookmarks bar.
- A pop-up alert will display the user ID of the profile you're viewing.
- TikTok
Featured in Issue #43 of The OSINT Newsletter -> https://osintnewsletter.com/p/43