🔀 YouTubeSortByDuration 🚀

Forked from KohGeek/SortYoutubePlaylistByDuration — complete rewrite using YouTube's InnerTube API.

Overview

YouTubeSortByDuration sorts YouTube playlists by video duration using YouTube's own InnerTube API — no unreliable DOM drag-and-drop simulation. Works on playlists of any size. ⚡

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✨ Key Features

• 🎬 Sort playlists by video length: shortest-to-longest or longest-to-shortest
• ⚡ YouTube InnerTube API — no broken drag-and-drop, fast and reliable
• 🎨 Sleek, modern UI with intuitive controls and live status updates
• 🌐 Broad compatibility: Works on all YouTube playlist types and browsers
• 🚀 Lightweight & open-source: Zero dependencies, GPL-2.0 licensed

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📦 Installation

1. Install a userscript manager like ViolentMonkey or Tampermonkey.
2. Install the script from Greasy Fork.
3. Open a YouTube playlist, and the sort controls will appear automatically.

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🚀 Usage

1. Open a YouTube playlist.
2. Select a sort order (by Longest or by Shortest).
3. Click Sort Videos to begin.
4. The page will reload when sorting is complete.

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🛠 Technical Details

Version 6.0 replaced the broken DOM drag-and-drop approach with YouTube's youtubei/v1/browse/edit_playlist API:

• ACTION_MOVE_VIDEO_AFTER — moves videos to their correct positions
• SAPISIDHASH authentication — uses your session cookie to authorize requests
• ytInitialData parsing — extracts setVideoId identifiers from YouTube's page data
• Virtual array tracking — tracks order in memory (DOM doesn't reflect API changes until reload)

v6.2 Fixes

• Fixed "already sorted" false positive — current order is now captured before entries.sort() in-place mutation
• Ensured durations are fully loaded before sorting (previous versions could sort videos with no duration data to the wrong position)
• Filtered out entries with missing video IDs — videos whose identifiers couldn't be extracted from the DOM are now cleanly skipped instead of causing API errors

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❤️ Contributing

Contributions, bug reports, and feature requests are welcome! Please fork the repo, create a feature branch, and open a pull request.