All extensions

Out of the stone age: everything a student needs in one place, connected to your university systems with AI.

Stuđiô

Tasks, Pomodoro, Eisenhower sorting and optional Gemini help.

Studyboard School Sync

Keeps Studyboard up to date with your Canvas, Brightspace or Blackboard: due dates, submissions, grades and feedback.

StudyBuddy

Save and upload practice pages for organized review and AI analysis.

StudySnap Pro

The ultimate YouTube study companion: snap frames, take rich notes, and organize everything. 100% local & private.

Stunning Sydney Skyline Reflects in Tranquil

Stunning Sydney Skyline Reflects in Tranquil. Chrome theme featuring dusk and reflection.

Stupid Prompter

Premium floating teleprompter with live RSS, danmaku, privacy fog, wisdom & knowledge across every tab.

Style Atelier

Style Atelier is a prompt manager for midjourney.

STYLEmate Instagram DM CS

인스타그램 패널과 DM CS 사이드패널

Stylish Red Sports Car Parked in Urban

Stylish Red Sports Car Parked in Urban. Chrome theme featuring red vehicle and underground garage.

stylls

Draw, highlight, create notes onto any webpage/ pdf file. Save your notes for free, without an account or internet connection.

Stylox Snap

🧑‍💻 Developer Tools

Capture web elements along with computed styles, Tailwind utility classes or raw CSS.

Subdomain Switcher

🧑‍💻 Developer Tools

Quickly switches between subdomains of the current page — preserving the full URL path, query parameters, and hash.

SubLift — YouTube 字幕暂停学习

在 YouTube 暂停时显示当前句字幕+中文翻译，点词查释义、单句循环、保存句卡与生词本。

Submission Guard

🛡️ Privacy & Security

Blocks suspicious form submissions

Subscription Groups & Stats for YouTube

Group subscriptions, watch one group at a time, spot new uploads, and chart views and likes across channels. Stays in your browser.

Subscription Sentinel

A privacy-first extension to track your subscriptions. All data is stored locally on your device.

SubSorter

Sorts your YouTube subscriptions into categories, with a free AI in your browser that suggests categories and searches by meaning.

Substack Archive Button (All Domains)

Adds Archive and Unarchive buttons to Substack post pages, including publications on custom domains.

SubtitleLearner — learn languages on YouTube

Learn languages on YouTube — click any subtitle word for a translation + AI explanation, then save it as a flashcard.

subwatch

Subreddit new-post alerts — the replacement for Reddit RSS (retiring Nov 13, 2026).

SubWatch

🛡️ Privacy & Security

Subresource integrity watcher. Warns against site content that has changed since last visit.

SubWatch — Subscription Tracker

Track subscriptions with a beautiful dashboard and renewal reminders. Privacy-first — all data stays local.

Subway Nutrition Calculator

Calculate nutrition information for Subway sandwiches