SuperChat Manager

Last updated: October 24, 2026

SuperChat Manager ("the extension") is designed with privacy as a foundational principle. The extension operates entirely within your browser and processes YouTube live stream chat data locally on your device.

What Data We Collect and Process

When you open a YouTube live stream or live chat replay while the extension is active, SuperChat Manager processes:

• Live Chat Events: Public Super Chats, Super Stickers, Super Thanks, channel memberships, gifted memberships, and live chat text messages appearing in the stream's public chat.
• Event Metadata: Supporter display names, event amounts and currencies, timestamps, user-provided chat messages, and public avatar image URLs provided by YouTube.
• Stream Information: YouTube stream title, URL, and video identifier.
• User Settings: Your local preferences for sound chime volume, alert thresholds, notification preferences, badge display mode, and OBS overlay styling.

How Data Is Stored

• Local Storage Only: All captured stream events, session logs, donor totals, and user preferences are saved strictly locally on your machine using Chrome's extension storage (chrome.storage.local and temporary in-memory chrome.storage.session).
• No Cloud Synchronization: The extension does not use cloud sync (chrome.storage.sync) or remote databases.
• Automatic Capacity Limits: To prevent excessive local storage use, data is automatically capped at 25 recent streams, up to 500 chat messages and 5,000 paid events per session, and a global safety cap of 60,000 events.

How Data Is Used

Collected data is used exclusively to provide the extension's user-facing features:

• Displaying the live side panel feed, event history, and filtering by event type.
• Calculating running revenue totals, currency breakdowns, and supporter leaderboards.
• Triggering local desktop notifications and Web Audio chimes according to your configured thresholds.
• Displaying alert cards in the local OBS overlay window (obs-source.html).
• Generating client-side recap images and plain-text summaries using HTML5 Canvas on your machine.