Cuebox

Free for Windows

Turn your folder of YouTube downloads into a library.

Cuebox shows every channel and playlist in your archive, plays each video with its chapters and subtitles, and jumps to any line you click. It only reads your files.

Download for Windows

Windows 10 or 11, 64-bit

Cuebox: a folder tree of categories and channels, the channel's videos, and the player with chapters and subtitles

Made for the folder you already have

Point Cuebox at your archive and press Open. Categories, channels and playlists come from your folders. Each video is a group of files with the same name:

  • .mp4the video
  • .txtthe YouTube link, the description and the chapters
  • .srtthe subtitles

Any of them can be missing. The first scan is cached, so the next start is fast, and Rescan reads the folder again.

YouTube\
  Development\                  category
    Rust in Practice\           channel
      Web\                      playlist
      01 Ownership in ten minutes.mp4
      01 Ownership in ten minutes.txt
      01 Ownership in ten minutes.srt
      02 Error handling without tears.mp4
  AI\
  Course\

Watch to learn, not to scroll

Click a line, jump there

Click a chapter or a subtitle line and the player goes to that moment. Subtitles show on the video; CC turns them off.

Search what was said

Search the subtitle text of every video in the archive and open a result at the exact time. Find with AI picks the best passages.

Subtitles from speech

A video with no subtitles? Make them on this computer with whisper.cpp. Cuebox saves the .srt next to the video, only when you press it.

Ask AI about a video

Summarize it, learn it with Teach me and a short quiz, or chat. Times in an answer jump the player. Use your own OpenAI, xAI, OpenRouter or Ollama Cloud key, or sign in with OpenRouter or Grok.

Picks up where you stopped

Each video starts where you left it, and Cuebox reopens the last one. Speed from 0.5× to 3×, autoplay of the next video, and pane sizes are remembered.

Archive new videos

Paste a YouTube link, pick the folder, and Cuebox downloads it into your archive with yt-dlp. It shows up in the list at once.

Cuebox in the light theme

It never changes your archive

Cuebox only reads the folder. It never writes, moves, renames or deletes a file in it. A missing drive or an offline NAS share gets a clear message, not a crash.

No account is needed. AI features work only after you add your own key or sign in, and only when you ask.

Light and dark themes are both built in.

Install in a few steps

  1. Download the zip with the button below.
  2. Extract it anywhere, open the Cuebox folder and run Cuebox.exe. Keep the nsh folder next to it.
  3. If Windows SmartScreen warns you, choose More info, then Run anyway. The app is not code-signed yet.
  4. Type your archive folder in the box at the top and press Open.

Optional: install yt-dlp to archive new videos, and whisper.cpp with a model to make subtitles (set their paths in Settings > Subtitles).

Questions

Is it free?

Yes. Cuebox is free to download and use. AI features use your own provider account.

Does it work on macOS or Linux?

Not yet. Cuebox is a Windows desktop app for now.

What if my files are named differently?

Cuebox matches the files of one video even when their names differ a little, for example a YouTube id in brackets, a language tag such as .en.srt, or a cut-off title.

Where is my AI key kept?

In the app's settings on this computer, as plain text. It is sent only to the provider you choose.

How do I check the download?

Compare the file's SHA-256 with the one shown here: loading…

Your archive deserves a better player.

Download Cuebox for Windows

Windows 10 or 11, 64-bit