Take control of compatible HTML5 video across the web with Ultimate Video Enhancer. UVE helps you watch long lectures, online courses, tutorials, podcasts, and other video content more efficiently. Adjust playback speed, boost quiet audio, manage subtitles, use keyboard shortcuts, and save your preferred settings for each website.

Speed up long lectures and tutorials
Slow down difficult explanations
Boost videos that remain quiet at normal volume
Control playback with convenient keyboard shortcuts
Save different speed and volume settings for each website
Manage video controls from one clean browser extension

Playback speed from 0.1x to 3x
Volume control and boost up to 2x
Quick presets
Keyboard shortcuts for speed and volume
Hold-to-ramp controls
Saved preferences for individual websites
Global pause and resume
Dark, light, and gray themes
Access to available YouTube captions

Playback speed up to 16x
Volume boost up to 6x
Up to 5 saved templates
OpenSubtitles search
Manual subtitle upload using .srt and .vtt files
On-page playback performance monitor
Optional YouTube dislike counts through the Return YouTube Dislike API

UVE detects compatible video and audio elements on the current page and applies your selected playback settings directly in the browser. Core playback controls and preferences are handled locally. Your saved settings remain in the extension storage on your device.

Some websites use custom players, embedded frames, DRM, or other restrictions. Because of this, individual features may not work on every website or video player.

UVE is free to install and use within the Free plan limits. UVE Pro is an optional paid upgrade that unlocks higher limits and additional features. Payments are securely processed through Stripe on the official UVE website. An account is not required for the core Free features. License activation is only required when using UVE Pro. We do not sell user data or browsing history. Optional features may send limited network requests for:

UVE Pro license validation
OpenSubtitles search
YouTube dislike counts

Full details are available in our Privacy Policy.