Youtube Links And Chapter

A YouTube sidebar extension with chapter navigation, AI chapter generation, TL;DR summaries, and video speed controls.

What's new:

- AI Chapter Generation — For videos without chapters, uses YouTube's built-in AI when available. Falls back to clipboard mode (copy transcript for any AI app) or direct API mode (connect to any OpenAI-compatible API like local vLLM/Ollama).
- TL;DR — Generates a structured summary using YouTube's built-in AI: an overall summary paragraph followed by key points with inline timestamp links.
- Video Speed Controls — Quickly adjust playback speed directly from the popup. The current speed is shown in the button label.

What it does:
- Shows chapters for the current video
- Click one to jump to it
- AI chapter generation for videos without chapters
- TL;DR tab: summary + key points with clickable timestamp links
- Video playback speed controls
- Quick links to Home, Subscriptions, Watch Later, History
- Alt+Y to open (customizable in chrome://extensions/shortcuts)
- Works with dark mode

Changelog:

1.0.374
- Speed control +/-5% buttons now use additive steps (e.g. 1.10 -> 1.15 -> 1.20) instead of multiplicative 10% increments

1.0.372
- Added TL;DR tab alongside the Chapters tab - generates a structured summary using YouTube's built-in AI (YouChat)
- TL;DR output shows an overall summary paragraph followed by key points with bold titles and inline timestamp range links
- Clicking a timestamp link seeks the video and closes the popup
- Edit Prompt dialog now has Chapters/TL;DR inner tabs for independent prompt customization

1.0.361
- Added YouTube built-in AI chapter generation — uses YouTube's "Ask" panel when available; falls back to clipboard/API mode automatically
- Shows a clear message when YouTube AI is unavailable and no transcript is found
- Fixed instructions not pre-populating in the options dialog

1.0.353
- Improved AI chapter generation: rewrote prompt to reduce over-segmentation — targets fewer, broader chapters by merging related segments and enforcing coarser granularity

1.0.351
- Fixed active chapter not being highlighted (YouTube changed their DOM, switched to video.currentTime for reliability)

1.0.348
- Fixed false chapter appearing on videos without chapters (affiliate redirect links in description were misidentified as chapter timestamps)
- Fixed transcript extraction broken by YouTube DOM update (now uses ytd-transcript-segment-renderer)

1.0.345
- Added video playback speed controls in popup
- Added settings page to configure AI API endpoint, model, and prompt
- Active chapter is now highlighted as you watch

1.0.328
- Added AI chapter generation for videos without chapters
- Clipboard mode: copies the transcript so you can paste it into any AI app
- Direct API mode: connects to any OpenAI-compatible API (e.g. local Ollama/vLLM)

1.0.318
- Added Alt+Y hotkey to open/close popup
- Hotkey is customizable