SecPlusMastery

Free up Gmail storage fast. Bulk delete old emails, large attachments & promos. Bulk unsubscribe from lists, schedules & undo.

Search, export and bulk delete your own Discord messages. Your token never leaves the browser.

One-click full page screenshots that get sticky headers, lazy images and app UIs right. Free editor and PDF export. No account.

Boost any tab's volume up to 600% with one slider. Remembers the level per site. No tracking, no network calls.

Blocks ads and trackers, hides what is left over, and shows you exactly what it did.

Restore copy, text selection, right-click and keyboard shortcuts on sites that block them. Nothing is tracked and nothing is sent.

Blur student names before you share your screen. Click to blur anything, auto-blur whole rosters. 100 percent local and private.

Dark mode for every site. Uses a site's own dark theme when it has one, so pages look right instead of inverted. No white flash.