Browser extensions starting with J

JSON Formatter embeds a GiveFreely affiliate tracking library that monitors shopping browsing and sends search result URLs across all websites.

This extension adds calendar integrations for scheduling meet.jit.si video meetings.

Displays JSON responses in a formatted, validated view in Chrome.

Formats JSON and JSONP in Chrome with syntax highlighting and collapsible nodes.

Visualizes JSON responses in tree and chart views with formatting and navigation tools.

Capture browser screenshots and recordings with technical context for bug reports and feedback.

Automatically finds cash back offers, promo codes, discounts, and price drops while you shop online.

Exports and imports browser cookies for sharing website sessions without sharing passwords.

Turns web articles into a customizable, distraction-reduced reader view.

JSON Viewer renders URL values from JSON pages into link attributes without escaping the URL.

Displays JSON documents as an editable tree view in the browser.

Formats JSON documents in the browser with highlighting and collapsible arrays and objects.

Jabra ChromeHost relays arbitrary web page messages to a native host controlling Jabra device state, without origin validation.

Save web pages and screenshots to Joplin while browsing.

Adds Jasper AI writing and editing tools inside common marketing and content platforms.

Blocks ads, popups, trackers, suspicious redirects, and unsafe sites while you browse.

Replaces YouTube thumbnails with images of Jambo and other cat-themed pictures.

This extension bulk-adds copied value lists to JD Edwards report data selection fields.

JSON Formatter injects a content script into every page to detect and pretty-print raw JSON, and the current version contains no network or analytics code.

Skips ads on YouTube and YouTube Music, including clicking available Skip Ads buttons.

Displays JSON files in the browser with syntax highlighting and expandable sections.

This extension provides a JavaScript editing environment with code completion and live analysis.

Track work hours from the browser with clock in/out, timers, and task or project logging.

JustCall injects its content script into any page whose URL merely contains one of ~260 CRM domain names anywhere in the string.

JavaScript-Java Bridge relays messages between webpages and locally installed Java programs via native messaging, with no validation of which Java host a page may connect to.

Controls which browser JavaScript APIs websites can use or access while you browse.

Jabra Device Connector exposes a native messaging bridge to the Jabra SDK app that any web page can invoke without origin restrictions.

Join dispatches remote-control commands received via push notification through eval() with no signature check.

JoomPulse forwards intercepted Shopee marketplace API responses to joompulse.com.

Displays JSON documents in a formatted, highlighted, and collapsible view.

Joko transmits full merchant page URLs and shopping events with persistent user and device IDs to its servers and Amplitude.

Captures web pages and screenshots from the browser and saves them to Joplin.

Toggle JavaScript execution on or off in standard and private browsing modes.

The javascript extension lets users store custom JavaScript per domain and injects it into every page on that domain on each navigation.

J7Extension captures Axiom tracked-wallet and own-wallet details for its local highlighting panel.

JDM Cars Wallpaper New Tab sends new-tab search queries to tabssearch.com.

JSON Formatter sends the current JSON page URL to jsonlint.com when its JSONLint button is clicked.

JSON Formatter Pro reads JSON page contents and URLs to keep a local sidebar history.

Formats JSON and JSONP responses with collapsible, readable views.

Formats raw JSON into a readable, collapsible view with syntax highlighting.

JSTorrent Helper extension sends selected magnet and torrent links, plus the current page URL, to the JSTorrent Chrome app.

JWT Inspector reads Authorization bearer JWTs in DevTools and displays their decoded contents locally.

JabRef Browser Extension fetches translator scripts from repo.zotero.org and executes them in active tabs without integrity checks.

Provides quick access to Java documentation and a built-in compiler from the browser.

Turns JavaScript execution on or off from the browser action button.

This extension lets users disable JavaScript on selected websites or tabs.

JavaScript-Java Bridge connects web pages on user-allowlisted sites to locally-installed native messaging hosts via a postMessage relay.

Jazz-MIDI exposes a native MIDI host to any website via a CustomEvent bridge with no origin filtering.

JetBrains Grazie Writing Companion sends text typed into web page fields to JetBrains' AI backend for grammar and completion suggestions.

Jira Product Discovery sends selected page text, screenshots, and page details to the Jira site you choose.