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BookMarklets

Home

Below is a list of 50 useful bookmarklets along with explanations of what each one does. You can create a bookmark in your browser for any of these by copying the code and setting it as the bookmark's URL.

  1. Alert Page Title

    javascript:(function(){alert(document.title);})();

    Description: Displays an alert dialog showing the current page's title.

  2. Prompt Page URL

    javascript:(function(){prompt('Page URL:',location.href);})();

    Description: Opens a prompt dialog displaying the current page's URL, allowing you to copy it.

  3. Make Page Editable

    javascript:(function(){
  document.body.contentEditable='true';
  document.designMode='on';
  void 0;
})();

    Description: Makes the current webpage editable, allowing you to modify text and elements directly in your browser. Note that changes are temporary and only visible to you.

  4. View Page on Wayback Machine

    javascript:(function(){
  window.location='https://web.archive.org/web/*/'+location.href;
})();

    Description: Redirects you to the Internet Archive's Wayback Machine to view archived versions of the current page.

  5. Validate HTML

    javascript:(function(){
  window.open('https://validator.w3.org/nu/?doc=' + encodeURIComponent(location.href));
})();

    Description: Opens the W3C Markup Validation Service to validate the HTML of the current page.

  6. Whois Lookup

    javascript:(function(){
  window.location='https://whois.domaintools.com/'+location.hostname;
})();

    Description: Redirects to DomainTools to perform a Whois lookup on the current domain.

  7. Google Site Search

    javascript:(function(){
  window.location='https://www.google.com/search?q=site:'+document.domain;
})();

    Description: Performs a Google search limited to the current site, showing all indexed pages.

  8. SSL Labs Analyzer

    javascript:(function(){
  window.open('https://www.ssllabs.com/ssltest/analyze.html?d=' + encodeURIComponent(window.location.hostname));
})();

    Description: Opens SSL Labs' SSL Server Test for the current domain to analyze its SSL configuration.

  9. Show Last Modified Date

    javascript:(function(){
  alert('This page was last modified on: ' + document.lastModified);
})();

    Description: Displays an alert showing the last modified date and time of the current page.

  10. Print Page

    javascript:(function(){
  window.print();
})();

    Description: Opens the print dialog to print the current page.

  11. Scroll to Top

    javascript:(function(){
  window.scrollTo(0,0);
})();

    Description: Instantly scrolls the page to the top.

  12. Scroll to Bottom

    javascript:(function(){
  window.scrollTo(0,document.body.scrollHeight);
})();

    Description: Instantly scrolls the page to the bottom.

  13. Check Site Availability

    javascript:(function(){
  window.open('https://downforeveryoneorjustme.com/'+location.hostname);
})();

    Description: Opens a site to check if the current website is down just for you or for everyone.

  14. Alexa Rank

    javascript:(function(){
  window.open('https://www.alexa.com/siteinfo/'+location.hostname);
})();

    Description: Opens Alexa to view the traffic analytics and global rank of the current website.

  15. VirusTotal Scan

    javascript:(function(){
  window.open('https://www.virustotal.com/gui/url/search/' + encodeURIComponent(location.href));
})();

    Description: Scans the current URL for malware and phishing using VirusTotal.

  16. GTmetrix Performance Test

    javascript:(function(){
  window.location='https://gtmetrix.com/analyze.html?bm&url='+encodeURIComponent(location.href);
})();

    Description: Analyzes the performance of the current page using GTmetrix.

  17. Mobile-Friendly Test

    javascript:(function(){
  window.location='https://search.google.com/test/mobile-friendly?url='+encodeURIComponent(location.href);
})();

    Description: Tests if the current page is mobile-friendly using Google's Mobile-Friendly Test tool.

  18. Display Screen Resolution

    javascript:(function(){
  alert('Screen resolution: ' + screen.width + 'x' + screen.height);
})();

    Description: Shows an alert with your screen's resolution.

  19. PageSpeed Insights

    javascript:(function(){
  window.location='https://developers.google.com/speed/pagespeed/insights/?url='+encodeURIComponent(location.href);
})();

    Description: Analyzes the current page using Google's PageSpeed Insights for performance suggestions.

  20. Siteliner Duplicate Content Check

    javascript:(function(){
  window.location='https://www.siteliner.com/'+encodeURIComponent(location.href);
})();

    Description: Checks for duplicate content on the current site using Siteliner.

  21. Enable Dark Mode

    javascript:(function(){
  document.body.style.backgroundColor='black';
  document.body.style.color='white';
})();

    Description: Applies a simple dark mode by changing the background and text colors.

  22. Enable Light Mode

    javascript:(function(){
  document.body.style.backgroundColor='white';
  document.body.style.color='black';
})();

    Description: Reverts the page to light mode with default background and text colors.

  23. Hide Page Content

    javascript:(function(){
  document.body.style.visibility='hidden';
})();

    Description: Hides all visible content on the page.

  24. Show Page Content

    javascript:(function(){
  document.body.style.visibility='visible';
})();

    Description: Makes the page content visible again if it was hidden.

  25. Google Maps Search

    javascript:(function(){
  window.location='https://www.google.com/maps/search/?api=1&query='+encodeURIComponent(document.title);
})();

    Description: Searches Google Maps using the current page's title as the query.

  26. Translate Page to English

    javascript:(function(){
  window.location='https://translate.google.com/translate?sl=auto&tl=en&u='+encodeURIComponent(location.href);
})();

    Description: Translates the current page into English using Google Translate.

  27. Mozilla Developer Network Search

    javascript:(function(){
  window.open('https://developer.mozilla.org/en-US/search?q='+encodeURIComponent(document.title));
})();

    Description: Searches the Mozilla Developer Network for documentation related to the page title.

  28. Copy URL to Clipboard

    javascript:(function(){
  navigator.clipboard.writeText(location.href);
  alert('URL copied to clipboard!');
})();

    Description: Copies the current page's URL to the clipboard and shows a confirmation alert.

  29. SimilarWeb Analytics

    javascript:(function(){
  window.location='https://www.similarweb.com/website/'+document.hostname;
})();

    Description: Opens SimilarWeb to view detailed analytics for the current website.

  30. Google Trends Search

    javascript:(function(){
  window.open('https://trends.google.com/trends/explore?q='+encodeURIComponent(document.title));
})();

    Description: Searches Google Trends for the current page's title to see its popularity over time.

  31. BuiltWith Technology Profiler

    javascript:(function(){
  window.location='https://builtwith.com/'+location.hostname;
})();

    Description: Analyzes the current website to show what technologies it's built with using BuiltWith.

  32. Alert Page Title

    javascript:(function(){
  alert('The page title is: ' + document.title);
})();

    Description: Displays an alert with the current page's title.

  33. Alert Page URL

    javascript:(function(){
  alert('The page URL is: ' + location.href);
})();

    Description: Displays an alert with the current page's full URL.

  34. Check Site Availability (Alternative)

    javascript:(function(){
  window.open('https://isitdownorjust.me/'+location.hostname);
})();

    Description: Uses an alternative service to check if the current website is down.

  35. Screenshot Machine

    javascript:(function(){
  window.location='https://www.screenshotmachine.com/capture.php?url='+encodeURIComponent(location.href);
})();

    Description: Takes a screenshot of the current page using ScreenshotMachine.com.

  36. Search Page on Twitter

    javascript:(function(){
  window.open('https://twitter.com/search?q='+encodeURIComponent(location.href));
})();

    Description: Searches Twitter for mentions of the current page's URL.

  37. Buffer Share

    javascript:(function(){
  window.open('https://buffer.com/add?text='+encodeURIComponent(document.title)+'&url='+encodeURIComponent(location.href));
})();

    Description: Adds the current page to your Buffer queue for scheduled social media posting.

  38. Show Meta Description

    javascript:(function(){
  var desc = document.querySelector('meta[name="description"]');
  alert('Meta Description: ' + (desc ? desc.content : 'Not available'));
})();

    Description: Displays an alert with the page's meta description, if available.

  39. Show Meta Keywords

    javascript:(function(){
  var keywords = document.querySelector('meta[name="keywords"]');
  alert('Meta Keywords: ' + (keywords ? keywords.content : 'Not available'));
})();

    Description: Displays an alert with the page's meta keywords, if available.

  40. Display Viewport Size

    javascript:(function(){
  alert('Current Viewport Size: ' + window.innerWidth + 'x' + window.innerHeight);
})();

    Description: Shows an alert with your browser's viewport size.

  41. Share on Facebook

    javascript:(function(){
  window.open('https://www.facebook.com/sharer/sharer.php?u='+encodeURIComponent(location.href));
})();

    Description: Opens Facebook's share dialog to share the current page on your timeline.

  42. YouTube Search

    javascript:(function(){
  window.location='https://www.youtube.com/results?search_query='+encodeURIComponent(document.title);
})();

    Description: Searches YouTube for videos related to the current page's title.

  43. Count Links on Page

    javascript:(function(){
  alert('Links on this page: ' + document.links.length);
})();

    Description: Displays an alert with the total number of hyperlinks on the current page.

  44. Pingdom Website Speed Test

    javascript:(function(){
  window.location='https://tools.pingdom.com/#5a3d0c4760000000/'+encodeURIComponent(location.href);
})();

    Description: Tests the load speed of the current page using Pingdom Tools.

  45. Reddit Search

    javascript:(function(){
  window.open('https://www.reddit.com/search/?q='+encodeURIComponent(document.title));
})();

    Description: Searches Reddit for discussions related to the current page's title.

  46. Quora Search

    javascript:(function(){
  window.open('https://www.quora.com/search?q='+encodeURIComponent(document.title));
})();

    Description: Searches Quora for questions and answers related to the page's title.

  47. LinkedIn Search

    javascript:(function(){
  window.open('https://www.linkedin.com/search/results/all/?keywords='+encodeURIComponent(document.title));
})();

    Description: Searches LinkedIn for posts, people, and companies related to the page's title.

  48. Pingdom Website Test (Alternative)

    javascript:(function(){
  window.location='https://www.pingdom.com/?url='+encodeURIComponent(location.href);
})();

    Description: An alternative way to test the current page's load speed using Pingdom.

  49. AMP Validator

    javascript:(function(){
  window.open('https://validator.ampproject.org/#url='+encodeURIComponent(location.href));
})();

    Description: Checks if the current page is AMP-compliant using the AMP Validator.

  50. Copy Title to Clipboard

    javascript:(function(){
  navigator.clipboard.writeText(document.title);
  alert('Title copied to clipboard!');
})();

    Description: Copies the current page's title to the clipboard and shows a confirmation alert.

These bookmarklets provide quick access to various tools and functionalities directly from your browser, enhancing productivity and offering valuable insights. Feel free to add any of them to your bookmarks for easy use.

Note: Due to browser security policies, some bookmarklets that interact with the clipboard or require certain permissions may not work as expected in all browsers or may prompt for permission.