GS Hub
Manage all your Greasy Sprocket Chrome extensions from one side panel.
Toggle any GS extension on/off without visiting chrome://extensions
See all 28 GS extensions at a glance — installed, enabled, or not yet installed
Install links for GS extensions you don't have yet
Live updates — changes outside the Hub reflect instantly
Dark theme, category grouping (Productivity / Audio / Visual / Utility)
100% free, no premium, no ads, no tracking
GS Hub is the control center for your Greasy Sprocket extension ecosystem.
Instead of going to chrome://extensions every time you want to enable or disable
an extension, GS Hub puts all your GS extensions in one side panel. Toggle them on
or off with a single click, see which ones you haven’t installed yet, and discover
new extensions as they’re released.
How it works
GS Hub uses Chrome’s management API to detect and control other extensions.
When you open the side panel, it queries all installed extensions and filters them
by their update_url pattern (greasysprocket.com/updates/...).
Each extension gets a card showing its icon, name, description, version, and a toggle switch. Extensions you haven’t installed yet show an “Install →” button that links directly to their page on greasysprocket.com.
The GS ecosystem
GS Hub manages all 28 Greasy Sprocket extensions:
| Extension | Category | Description |
|---|---|---|
| AltText Gen | Developer Tools | Right-click any image → generate alt text with on-device ML |
| ClickPop | Fun | Ripple + sound on every click |
| ColorPick | Developer Tools | Universal eyedropper — HEX, RGB, HSL |
| CopyCat | Tools | Clipboard history, 100% local |
| CursorFX | Fun | 12 themed cursors — neon, laser, pixel art |
| EmojiBar | Tools | Type : for emoji picker like Slack/Discord |
| FactOrFake | Games | True/false trivia on every new tab |
| FocusPet | Workflow & Planning | Virtual pet that thrives when you focus |
| FontBuddy | Accessibility | Resize and swap fonts on any site |
| FormBuddy | Workflow & Planning | Autosave & restore form data |
| GateKeeper | Functionality | 5-second pause before distracting sites |
| GS Hub | Developer Tools | Manage all GS extensions from one side panel |
| GS Tab Switcher | Developer Tools | Choose which GS new-tab extension loads |
| JSONifier | Developer Tools | Auto-formats JSON with syntax highlighting |
| PageSniff | Tools | Detects page type with on-device ML |
| PrintFriend | Tools | Clean any page for printing or PDF |
| QRify | Tools | QR code of current URL with one click |
| QuizTab | Games | 200 trivia questions on every new tab |
| ReadAloud Lite | Accessibility | Select text → right-click → read aloud |
| ReadTime AI | Tools | Realistic reading time with readability heuristics |
| ScrollFlow | Functionality | Smooth scroll + custom scrollbars |
| TabFM | Fun | Lo-fi radio in every new tab |
| TabSnooze | Workflow & Planning | Snooze tabs for later |
| TabTitles | Functionality | Rename any tab temporarily |
| Text Tools | Developer Tools | 12 text transforms — UPPERCASE, camelCase, etc. |
| ThockBoard | Fun | Mechanical keyboard sounds as you type |
| ToxiFilter | Tools | Real-time tone & toxicity checker, on-device ML |
| TypeRacer AI | Games | Typing race on every new tab — WPM tracking |
Privacy
GS Hub doesn’t collect any data. No analytics, no tracking, no telemetry.
It only reads extension metadata from Chrome’s local management API — nothing
leaves your browser. The extension only requests management, storage, and
sidePanel permissions. No host permissions, no content scripts, no access to
page content.
Free forever
GS Hub is 100% free. All features are available to everyone. There are no premium tiers, no locked features, no usage limits. If you enjoy it, you can buy me a coffee — but there’s zero pressure.
How would you rate GS Hub?
Click a star to vote — no account needed.
Frequently asked questions
What does GS Hub do?
GS Hub is a control panel for all Greasy Sprocket Chrome extensions. It shows which ones you have installed, lets you toggle them on or off, and provides install links for extensions you don't have yet — all from a side panel.
How does GS Hub detect my extensions?
GS Hub uses Chrome's management API to list all installed extensions and filters them by their update URL pattern (greasysprocket.com). No hardcoded extension IDs are needed — it works with any installation method.
Does GS Hub collect any data?
No. GS Hub doesn't collect any data. No analytics, no tracking, no telemetry. It only reads extension metadata from Chrome's local management API.
What permissions does GS Hub need?
GS Hub needs three permissions: management (to query and toggle other extensions), storage (for settings), and sidePanel (for the side panel UI). No host permissions, no content scripts, no access to page content.
Can GS Hub install extensions for me?
No — Chrome doesn't allow extensions to install other extensions automatically. GS Hub provides direct install links to each extension's page on greasysprocket.com where you can download and install them manually.
Is GS Hub really free?
Yes, 100% free. All features are available to everyone. No premium tiers, no locked features, no usage limits. If you find it useful, you can buy me a coffee — but there's zero pressure.