A CLI tool for backing up YouTube playlists with time-travel capabilities. Query your playlists as they existed at any point in time.

• Backup all playlists including Watch Later (which YouTube's API blocks)
• Time-travel queries - see what was in a playlist last week, last month, etc.
• Prune Watch Later - automatically remove old items via browser automation
• Restore playlists - recover deleted videos to a new playlist

# Clone and install
git clone <repo>
cd youtube-playlist-manager
uv sync

1. Create a Google Cloud project and enable the YouTube Data API v3
2. Create OAuth 2.0 credentials (Desktop app)
3. Download as client_secrets.json in the project root
4. Add your email as a test user in the OAuth consent screen
5. Authenticate:

uv run ytm auth login

# Backup all playlists
uv run ytm backup
# Include Watch Later (uses yt-dlp with browser cookies)
uv run ytm backup --watch-later

# List backed-up playlists
uv run ytm list playlists
# List items in a playlist
uv run ytm list items PLAYLIST_ID
# Time-travel: see playlist at a specific snapshot
uv run ytm list items WL --at-version 5
# Time-travel: see playlist at a specific time
uv run ytm list items WL --at-time "2024年01月15日 10:00:00"

# View all snapshots
uv run ytm history snapshots
# Compare two versions
uv run ytm history diff 1 5

Remove items from Watch Later using browser automation. YouTube's API doesn't allow modifying Watch Later, so this command opens a real Chrome browser to delete items directly.

How it works:

1. Opens Chrome with a dedicated profile (your YouTube login persists between runs)
2. Navigates to your Watch Later playlist
3. Sorts by "Date added (oldest)" so oldest items appear first
4. Deletes items one by one from the top of the list

# Delete the 100 oldest items
uv run ytm prune WL --count 100
# Delete ALL items (clears entire Watch Later)
uv run ytm prune WL --all
# Delete 200 items, but only 50 per browser session
# (run multiple times to complete)
uv run ytm prune WL --count 200 --batch-size 50
# Slower deletion (3 seconds between each item)
uv run ytm prune WL --count 50 --delay 3

Notes:

• Requires Google Chrome to be installed
• First run will prompt you to log in to YouTube in the browser window
• Your login is saved to ~/.local/share/ytm/chrome-profile/ (separate from your main Chrome profile)
• Local backup is NOT modified—run ytm backup --watch-later afterward to sync your backup
• Uses undetected-chromedriver to avoid Google's bot detection

# Restore to a new playlist
uv run ytm restore WL --create-new "Watch Later Backup"
# Restore from a specific snapshot
uv run ytm restore WL --from-version 3 --create-new "Old Watch Later"

Data is stored in XDG-compliant directories:

• Config: ~/.config/ytm/ (OAuth tokens)
• Data: ~/.local/share/ytm/ (DuckLake database, Chrome profile for browser automation)

The database uses DuckLake for time-travel snapshots. To compact the database and clean up old snapshots:

uv run python -c "
from ytm.core.database import get_connection
conn = get_connection()
conn.execute(\"CALL ducklake_set_option('ytm', 'expire_older_than', INTERVAL '7 days')\")
conn.execute('CHECKPOINT ytm')
"

• Typer + Rich for CLI
• DuckDB + DuckLake for time-travel storage
• yt-dlp for reading Watch Later (bypasses API restrictions)
• undetected-chromedriver for Watch Later deletion (browser automation that evades bot detection)
• google-api-python-client for YouTube Data API v3