Useful Bookmarklets

1. Laser Pointer

   Adds a Google Slides-style laser pointer to any web page.

   • Press L to toggle the laser pointer on/off
   • When active, a red glowing dot follows your cursor
   • The normal cursor is hidden while the laser is active
   • Great for presentations or highlighting content on screen
2. Confetti

   Triggers a colorful confetti explosion on any web page.

   • Press C to trigger a confetti burst
   • Colorful pieces fall from the top of the screen
   • Effect lasts about 1 second
   • Great for celebrations or adding some fun to any page
3. Snow

   Adds a peaceful snowfall effect to any web page.

   • Press S to toggle snow on/off
   • White snowflakes gently fall from the top of the screen
   • Snowflakes have varying sizes and subtle drift
   • Great for adding a winter atmosphere to any page
4. Pinboard.in's bookmarklet
5. Labels

   Create draggable labels on any web page.

   • Press L to create a new label at the center of the screen
   • Drag labels anywhere on the page
   • Double-click a label to edit its text
   • Great for annotating screenshots or marking areas of interest
6. Reload300

   Automatically reloads the current page every 300 seconds (5 minutes), indefinitely.

   • Logs to the console when it reloads, and how many seconds remain every 30 seconds
   • Click the bookmarklet again to stop it
   • Reloads by re-fetching the page and swapping in the fresh content, rather than a normal browser navigation, so the countdown keeps running forever instead of stopping after one cycle
   • Falls back to a normal one-time location.reload() if the fetch fails (e.g. cross-origin restrictions)
7. Reload Timer

   Asks how many seconds to wait, then shows a countdown in the upper-right corner and reloads the page when it reaches zero, over and over.

   • The countdown sits on top of everything else on the page
   • Click the countdown, or click the bookmarklet again, to stop it
   • Like Reload300, it reloads by re-fetching the page and swapping in the fresh content, so the timer survives the reload and starts counting down again
   • After each reload it scrolls to the bottom of the page (handy for logs and other growing pages)
   • If the page is served as text/plain, the fresh content is wrapped in a <pre> so it keeps its line breaks and spacing
   • Falls back to a normal one-time location.reload() if the fetch fails (e.g. cross-origin restrictions)