JS Blocker Ultimate

Block JavaScript on any site. Four modes, whitelist and blacklist with wildcards, per-site controls and stats. Free, no tracking.

Turn JavaScript off where you don't want it, and leave it on everywhere else. JS Blocker Ultimate sits in your toolbar and puts one decision in your hands: should this site be allowed to run scripts? Blocking uses Chrome's own JavaScript setting, so scripts are stopped at the browser level, before they load. Nothing is patched or injected into the sites you visit. Four ways to run it: - Allow all: scripts run on every site, as they normally do. - Block all: scripts are stopped on every site. Pages that rely on them for menus, forms, video or sign-in will not work properly, so treat this as the strict setting. - Block all but whitelist: everything stays blocked except the domains you trust enough to make an exception for. - Allow all but blacklist: browsing works as normal except on the domains you list, where scripts are switched off. Handy for cluttered, ad-heavy pages where all you want is the article text. Fine control when a page breaks: Open the popup and the This site card tells you whether scripts are blocked on the page in front of you. One click allows it, blocks it, or allows it just for this session. That temporary pass removes itself when Chrome closes, so a one-off visit never bends a permanent rule. Lists that behave the way you expect: Add a domain and its subdomains are covered automatically. The *.example.com notation works too, and if you paste a whole web address it is trimmed down to the domain for you. Long lists stay manageable with search built into the settings page, and your whole setup can be exported to a JSON backup and imported again later. Everyday touches: Right-click any page to allow, block or temp-allow its site. Press Ctrl+Shift+B to pause or resume blocking from the keyboard. A red X on the toolbar icon shows at a glance that the current page is running without scripts. The stats view keeps a simple local count of pages loaded while blocking was on. Ready out of the box: Blocking starts on Block all, with google.com, youtube.com and stackoverflow.com already on the whitelist, because most people want those working. Change any of it in seconds, and a master switch pauses everything without losing your settings. Private by design: The extension never reads the content of your pages and keeps no browsing history. Your mode, your lists and the page counter live only in Chrome's local storage on your own machine. There is no account to create, no analytics, no ads and no server involved. JS Blocker Ultimate is completely free. No Pro version, no locked features, no trial. Support: ultimateextensionslab@gmail.com