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Preview of YouTube Alchemy

YouTube Alchemy by Tim Macy

Swiss Army knife for YouTube with customizable features and interface improvements, all controlled via intuitive settings panels.

5 (1 reviews)5 (1 reviews)
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Extension Metadata

Screenshots
YouTube Home page with custom header links and color-coded video borders added by YouTube Alchemy for quick navigation and at-a-glance status check for videos.Video page showcasing YouTube Alchemy’s overlay: header action buttons, a persistent progress bar with chapter markers and SponsorBlock support, remaining-time display, and quick playback-speed controls.Tab View on a video page: native-style tabs above the sidebar (Info, Comments, Videos, Chapters, Transcript; if the panels exist) with clear active/hover states, integrating seamlessly with YouTube’s layout.YouTube Alchemy settings panel where users configure header buttons (NotebookLM, ChatGPT, Copy, Download), transcript exporter options (timestamps, chapters), link behavior, and export/import settings and can open additional sub-panels.
About this extension
This toolkit offers various features and customization options for YouTube, such as tab view, speed control, export transcripts, square design, auto-theater mode, sort notifications chronologically, and much more.

Videos on the Home page can be color-coded with borders to quickly identify their age and status, while the last uploaded video on the Subscription page can be highlighted and optionally auto-scrolled to it on subsequent visits.

Want to add a link to your favorite channel, video, or to a completely different website? No problem! Up to ten links can be added next to the YouTube logo.

Please use GitHub for issues and feature requests.
https://github.com/TimMacy/YouTubeAlchemy

YouTube Alchemy is an independent, private project. It's not affiliated with, endorsed by, sponsored by, or in any way officially connected to YouTube, Google LLC, or Alphabet Inc. "YouTube" and the YouTube logo are trademarks of Google LLC; all other trademarks are the property of their respective owners.

The code of YouTube Alchemy is licensed under the GNU Affero General Public License v3.0 or later (AGPL-3.0-or-later). Not licensed under the AGPL are all images and the "YouTube Alchemy" logo. Copyright © 2025 Tim Macy. All rights reserved.
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Permissions and dataLearn more

Required permissions:

  • Access your data for sites in the youtube.com domain

Optional permissions:

  • Access your data for sites in the youtube.com domain
More information
Add-on Links
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Version
8.0.1
Size
128.96 kB
Last updated
3 days ago (11 Sep 2025)
Related Categories
  • Privacy & Security
  • Appearance
  • Games & Entertainment
Licence
GNU Affero General Public Licence v3.0 only
Privacy Policy
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Version History
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Tags
  • privacy
  • user scripts
  • youtube
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