Zenith - Upgrade for YouTube

Enhance & improve YouTube with Loop, Zoom, Audio EQ, Speed Control, QoL features & Themes. Take control for the ultimate experience.

Enhance your YouTube With highly customizable settings. Take full control! Zenith adds a wide range of features such as: Audio Equalizer, Gif Creation, Theme Customization, Screenshot tool, Speed Control, Volume booster, shorts Blocker and much more 🎬 Video & Playback Mastery: • Loop videos: Adds a button in the playback bar to auto-loop the video • A-B Looping: Loop specific sections perfectly. Great for music practice or tutorials. • Speed Control (Up to 16x): Break the 2x limit! Go from 0.1x up to 16x speed with persistent settings. • Zoom & Pan: Use the magnifying glass icon to zoom into details (works on Shorts too!). • Rotate & Flip: Fix orientation or mirror videos instantly. • Quality-Lock: Force videos to play in 4K or 1080p automatically. No more fuzzy auto-quality. • Picture-in-Picture (PiP): Watch videos or Shorts while browsing other tabs. • Scroll speed control: Use Ctrl + scroll to adjust the playback speed down to 0.10x and up to 16x speed. You can also change the sensitivity of your scroll • Quick access controls: This adds buttons in the playback bar, shorts and sticky popup. You can remove the buttons you don't want in the dashboard • persistent speed: Choose a speed e.g. 1.2x on all videos 🎧 Advanced Audio Control: • Volume Booster (500%): Blast past the 100% limit for quiet videos. • 10-Band Equalizer: Includes 8 presets (Bass Boost, Vocal / podcast, Pop, etc.) or save your own. • Compressor / Limiter: Normalize audio (make loud sounds quieter, quiet sounds louder). • Mono Audio: Perfect for fixing videos with audio in only one ear. • Scroll Volume: Adjust volume instantly with your mouse wheel over the player. • Text-to-speech comments: Adds a speaker icon next to each comment. When you click the speaker icon it reads the comment. Choose from 24 different voices and 15+ languages ⚡ Productivity & Focus: • Hide Shorts: Remove Shorts from feed, search, and recommended. Reclaim your attention. • Focus Mode: Blur all distractions surrounding the video. • Sponsor Block: skips sponsored segments in YouTube videos, using the SponsorBlock api. Note: This is an opt-in feature. And you will be asked to grant permission to access (sponsor.ajay.app) api. Only if you enable it • Subtitle Explorer: Adds a search bar in the transcript box. Search for specific keywords and skip to that segment • Auto-pause on tab switch: It pauses the video when you click on another tab. You can set it to start the video again when you return to the video or you can set it to still be paused when you return •Timestamps & Notes: Save bookmarks with notes for any video. (Saved in library) •library: see and manage your own timestamps, screenshots and gifs •Sticky popup: The sticky popup appears when you scroll past the video. It adds 5 buttons to control the video. • Detach popup: Detach and drag your popup around the screen, without it disappearing when you click on yt elements • Hide watched videos: Hides videos you have already watched • Hide endscreen cards: Hides the recommended videos that pop up the last 5-10 seconds of a video • Hide members only videos: Hides the members only videos. The ones you have to pay to watch • Hide videos by duration: Gives you the ability to hide videos shorter than x minutes and hide videos longer than x minutes. • Hide playlists: Hides playlists as well as mixes and radio • Hide search suggestions: Hides suggestions in the search bar • Hide your search history: Hides all your previous searches in the search bar • Quickly save and open sessions: save your watch progress by clicking the save button next to the youtube logo and continue watching the videos from where you left off. Your saved sessions are saved in the dashboard under the saved sessions tab. • Auto fullscreen mode: Automatically enables full screen mode when you click on a new video • Auto cinema mode: Automatically enables cinema mode when you click on a new video • Instant autoplay skip: If the autoplay is turned on it immediately skips to the next video when the video ends instead of having to wait 9 seconds for the next video to play 🎨 Visuals / Themes & layout: • Dark Mode & Themes: Choose from 11 presets (True Black, Vaporwave Neon, Sunset Drive And more) • Dynamic backgrounds: 12 animated backgrounds, that works together with your standard background presets and some reacts to audio • Color grading: Change 7 different color grading options to cater the videos to your liking. Additionally you have 6 grading presets such as dim (night), Low blue light, Sharpness enhancer Etc. • Change text color: There are 2 types of text colors that can be changed 1 is the ui text color and the other is the text on recommended videos • Change progress bar color: change the color of the progress bar in the videos • Change icon shapes: This is a part of the theme studio and it changes the shape ui icons such as like / dislike button, subscribe button and more. You can choose between rounded, square, hexagon and octagon shapes. And back to the default • Changing transparency and blur of sidebar / notification bar: This is a part of the premium features. You can play around with blur sliders, radius sliders and transparency checkbox, to get a frosted effect or liquid glass effect on your left sidebar, notification bar and your context menu • Swap comments and sidebar: This swaps the positions of the comments and the right sidebar so you can read and scroll through the comments while still watching the video • Independent sidebar scroll: You can independently scroll the right sidebar without scrolling the rest of the page • Sidebar thumbnail resizer: Adds a slider in the popup and dashboard to resize the thumbnails in the sidebar / recommended videos. • Restored subscription list view: YouTube recently removed the list view from the subscriptions page, for most, if not all users. There is now a grid and list icon in the top right of the subscriptions page to toggle between the grid and list view. • High contrast captions: It simply makes the captions higher contrast for better readability • Compact feed slider: Make more videos show up per row in your home feed • Reflow grid: fixes and prevents a lot of common issues with the home feed, such as missing video slots, uneven rows and columns, and feed density scaling feature destroying the feed layout. It is sort of a self healing feed. 🛠️ Power User Tools: • Screenshot Tool: Capture screenshots (saved to library). • GIF Creator: Create GIFs directly from A-B loops. (Saved to library) • Gesture Controls: Control volume and seeking with mouse drag gestures. • Shortcuts: Fully customizable keyboard shortcuts. • Playlist sorter: Reverse order, Newest first, Oldest first And default • Quick access controls: This gives you access to buttons in the playback bar, shorts and sticky popup controls. You can remove the buttons you don't want in the dashboard • save presets: Make and save your own Equalizer, Compressor / limiter and background / theme presets. This is a part of the premium features, Though you can still edit most of these features on the free tier you'll just not be able to save your customizations Changelog [1.1.0] 3. February 2026 •Fixed - Timestamp Panel Persistence: Resolved an issue where the timestamp panel would persist even when disabled in options (Race condition fix). - Theme "None" Visibility: Fixed the Timestamp Panel background appearing transparent/invisible when the "None" preset is selected. It now defaults to a dark grey backdrop in this mode. - Media Library Export: Resolved errors when exporting large media library data. - GIF Import Count: Fixed NaN values appearing in GIF counts. - Shorts PiP Button: Fixed flickering issues with the ¨skip to next short¨ button. •Improved - EQ Controls: Improved the layout and integration of the Equalizer tab Changelog [1.2.0] 6. February 2026 •Added / new features - Restored subscription list view: YouTube recently removed the list view from the subscriptions page, for most if not all users. There is now a grid and list icon in the top right of the subscriptions page to toggle between the grid and list view. - Sidebar thumbnail resizer: Adds a slider in the popup and dashboard to resize the thumbnails in the sidebar / recommended videos. - Text-to-speech comments: Adds a speaker icon next to each comment. When you click the speaker icon it reads the comment. Choose from 24 different voices and 15+ languages Changelog [1.3.0] 11. February 2026 • Added / new features - Sponsor Block: This new ¨Content blocking¨ feature automatically skips sponsored segments in YouTube videos using the SponsorBlock api - Subtitle Explorer: Adds a search bar in the transcript box. This can we found in the bottom of the description of a video that has enabled subtitles • Fixed - text-to-speech icon not disappearing when turned off - Notes in timestamps sometimes disappearing When a new timestamp is added • Improved - Note box in timestamps now resize on line shift Changelog [1.3.5] 16. February 2026 • Added - 7 new languages (Spanish, Portuguese, Japanese, French, Korean, Indonesian, Italian) • Fixed - TTS icon sometimes not showing up in the comments - Video quality lock not working. YouTube is a trademark of Google LLC. Use of this trademark is subject to Google Permissions.