Clipboard Protection Lite
A tiny userscript that stops websites from silently reading, hijacking, or rewriting your clipboard. No settings. No accounts. It just runs.
Install
一键安装脚本 (Direct Install)On iOS Safari
Install the Userscripts extension from the App Store and enable it in Settings → Safari → Extensions. Then tap the install button above - Safari hands the raw .user.js file straight to the native installer.
What it does
Blocks silent clipboard reads
Pages can no longer call clipboard.readText() in the background to peek at what you copied.
Stops copy hijacking
Programmatic copy/cut without a real interaction is refused, so a page can't quietly overwrite your clipboard.
Cleans copy poisoning
When you copy text, hidden zero-width tracking junk some sites append is stripped before it reaches your clipboard.
The whole thing
No build step, no dependencies, ~120 lines of plain JavaScript. Read it before you run it.
view clipboard.user.js