Greasemonkey is the original. Created in 2005, it birthed the entire userscript ecosystem. But while Tampermonkey added bells and whistles, Greasemonkey stayed minimalist— too minimalist for some.
AdGuard’s browser extension isn't just for blocking ads. It has a hidden userscript engine that supports most Tampermonkey APIs. The killer feature? It runs before the page loads. Tampermonkey waits for DOM readiness; AdGuard injects at the network level. tampermonkey alternative
I clicked "OK" for the tenth time that month. But this time, I paused. Greasemonkey is the original
Here’s what I found on the other side. Vibe: "I have nothing to hide because you can read my source code." tampermonkey alternative