just_zoom

Fit, fill, frame and softly illuminate web video. Entirely local.

A lightweight, privacy-focused browser extension that makes web video fit ultrawide and custom displays correctly. Built with Manifest V3. Runs 100% locally in your browser with no accounts, subscriptions, telemetry, or background services. FEATURES • Fit & Fill modes: Scale videos to fill ultrawide (21:9, 32:9) or custom screens without stretching or distortion. • Mouse gestures: - Hold Alt + scroll wheel over the video to zoom smoothly. - Hold Alt + click and drag to pan (reframe X/Y). - Dedicated Reset Pan button to re-center framing without losing your zoom level. • Display profiles & auto-detection: Automatically reads screen aspect ratios to apply correct fill dimensions, with multi-monitor aspect ratio memory (16:9, 21:9, 32:9). • Action HUD: Subtle pill in the player corner showing current zoom multiplier and pan offset during gestures. • Player controls: - Integrated in-player button for tested streaming services: YouTube, Netflix, Prime Video, and Disney+. - Dedicated HTML5 player controls: Replaces default browser controls with an unscaled, pixel-faithful controls bar (scrubber, volume, speed, PiP, download, and optional Liquid Glass skin) so controls never zoom off-screen. - Floating player panel and browser toolbar popup for all other video platforms. • Ambience backdrops (non-DRM video): Background lighting matching video colors on standard HTML5 players, featuring Blur and Colour modes with configurable update rates. • Full Internationalization: Fully localized in 18 languages with automatic browser language detection and instant in-app switching. CONTROLS Mouse Gestures: • Zoom: Hold Alt + Scroll wheel over video • Pan: Hold Alt + Click & drag video • Reset pan: Click "Reset pan" in toolbar popup or player panel (The modifier key can be changed to Ctrl, Shift, or Cmd in settings) Keyboard Shortcuts: • Toggle Zoom on/off: Alt + Shift + Z • Zoom in / out: Alt + = / Alt + - • Toggle Ambience: Alt + Shift + B • Reset framing: Alt + Shift + R • Open controls: Alt + Shift + S • Pan video: Alt + Shift + Arrow keys (All shortcuts can be remapped in settings) Planned updates: • Subtitle & caption safe-zone handling (keep subtitles visible inside ultrawide framing) • Automatic black-bar detection (Auto-Crop) SUPPORT & FEEDBACK For any questions, issues, or feature requests, please reach out to: justzoom.dev@gmail.com