Just to show folks how simple this is, here's the JavaScript (JXA) version of the AppleScript code needed to run JS in the current active tab: /usr/bin/osas

Just to show folks how simple this is, here's the JavaScript (JXA) version of the AppleScript code needed to run JS in the current active tab: /usr/bin/osascript -l JavaScript <<EndOfScript var current_tab = Application('Google Chrome').windows[0].activeTab(); current_tab.execute({ javascript: 'alert(1)' }) EndOfScript Once you figure it out it's not too tricky. For example, I have shell utils for converting all links on a page to "in current tab links" by removing the `target` attr on <a> tags: function chromeJS() { INPUT="$1"; INPUT=${INPUT//\"/\\\"} ## escape quotes INPUT=${INPUT//\'/\\\'} /usr/bin/osascript -l JavaScript <<EndOfScript var current_tab = Application('Google Chrome').windows[0].activeTab(); current_tab.execute({ javascript: '$INPUT' }) EndOfScript } ... $ chromeJS "document.querySelectorAll('a').forEach(a => a.removeAttribute('target')); alert('Made all links in-tab links!')"