JS Stickers

Live JS expressions for the current tab, in a toolbar dropdown.

JS Stickers keeps a short list of JavaScript expressions in your toolbar and shows their live values for the page you're on, refreshed four times a second. • Type an expression and watch its value change with the page: document.title, a counter, an app's state, an element's text. • Works like the DevTools console: expressions see the page's own variables, and await works. Expressions re-run four times a second, so keep them free of side effects. • Pin a sticker to one site, several sites, or all sites; import stickers from other sites. • Reorder by dragging (or Alt+↑/↓), collapse rows, copy outputs. • Hide inputs to turn the popup into a compact readout; adjust the font size and width. Setup: after installing, open chrome://extensions, click Details on JS Stickers and turn on "Allow User Scripts" (on Chrome before 138: turn on Developer mode). The popup shows a button that takes you there. Privacy: everything stays in your browser. Your expressions are saved locally and nothing is sent anywhere.