Bookmarklet Builder

A single static page that turns a URL into a bookmarklet. Clicking the bookmarklet opens that URL with a fresh random query parameter each time, so the browser (and anything caching in between) has to fetch the page rather than serve a stored copy.

Useful for dashboards, status pages, and internal tools that cache harder than you would like.

Use it

https://brown-equipment-company.github.io/bookmarklet-builder/

No build step, no dependencies, nothing leaves the browser — index.html works just as well opened straight from disk.

1. Paste the URL.
2. Drag the generated button onto your bookmarks bar, or copy the code and paste it as the address of a hand-made bookmark.

Prefilled links

The form reads its own query string, so you can send someone a link that arrives ready to drag instead of asking them to fill anything in:

Parameter	Meaning	Default
url	The target URL	—
name	Text on the bookmarklet button, which becomes the bookmark's name	the host name
param	Cache-busting parameter name	cb

https://brown-equipment-company.github.io/bookmarklet-builder/?url=https%3A%2F%2Fexample.com%2Freport%3Fteam%3Dops&name=Ops%20Report

Each value must be URL-encoded, since the target URL usually has its own ?, & and # in it. You do not have to do that by hand — fill the form in once and the page shows the matching prefilled link with a Copy button.

What gets generated

For https://example.com/report?team=ops:

javascript:(function(){location.href="https://example.com/report?team=ops&cb="+Date.now().toString(36)+Math.random().toString(36).slice(2,8)})();

• The parameter name defaults to cb and can be changed.
• An existing parameter of the same name is replaced, so repeated clicks do not stack up ?cb=...&cb=....
• A #fragment is preserved and stays at the end of the URL.
• Only http: and https: URLs are accepted.

Hosting

GitHub Pages serves main from /, so anything pushed to main is live within a minute or so. It is one self-contained file, so any other static host works too.