bandcamp-plex-sync

bandcamp-plex-sync helps keep a purchased Bandcamp collection in sync with a local Plex music library.

It can:

• Fetch your Bandcamp fan collection.
• Incrementally scan a Plex-style local music tree such as /nas/music.
• Cache scanned tags in SQLite so unchanged audio files are not reopened each run.
• Report albums/tracks that appear to be missing locally.
• Download missing purchased FLAC files from Bandcamp.
• Extract Bandcamp album ZIPs into Plex-friendly Artist/Album/ directories.

The tool is intentionally conservative: it never deletes existing music and it dry-runs downloads unless you pass --yes.

Requirements

• Linux/macOS with Python 3.11+
• uv installed
• A browser where you are logged in to Bandcamp
• A local Plex music directory, defaulting to /nas/music

Bandcamp purchased FLAC downloads require authentication. The tool reads Bandcamp cookies from your browser with browser-cookie3; no Bandcamp password is stored by this tool.

Installation

Install the published command with uv:

uv tool install bandcamp-plex-sync
bandcamp-plex-sync --help

To run from a source checkout:

git clone git@github.com:feoh/bandcamp-plex-sync.git
cd bandcamp-plex-sync
uv sync
uv run bandcamp-plex-sync --help

The checkout also retains a development wrapper with inline uv dependency metadata:

./bin/bandcamp-plex-sync --help

Quick start

Run an authenticated audit, then download missing FLAC albums/tracks:

bandcamp-plex-sync audit YOUR_BANDCAMP_USERNAME --cookies-from-browser
bandcamp-plex-sync download-missing --yes

For the original use case:

bandcamp-plex-sync audit feoh --cookies-from-browser
bandcamp-plex-sync download-missing --yes

By default, files are written under /nas/music.

Commands

audit

Fetches your Bandcamp collection, scans the local music directory, compares both, and writes reports.

bandcamp-plex-sync audit USER --cookies-from-browser

Useful options:

bandcamp-plex-sync audit USER \
  --music-root /nas/music \
  --output-dir ~/.cache/bandcamp-plex-sync \
  --cookies-from-browser \
  --include-hidden

Outputs:

~/.cache/bandcamp-plex-sync/
  bandcamp-collection.json   # fetched Bandcamp collection metadata
  local-scan.json            # scanned local audio metadata and incremental scan stats
  music-scan.sqlite3         # persistent file signatures and cached tag metadata
  sync-report.json           # machine-readable comparison
  sync-report.md             # human-readable report
  missing-urls.txt           # Bandcamp item pages for missing items
  missing.csv                # spreadsheet-friendly missing item list

download-missing

Downloads missing purchased items from sync-report.json. When --yes is provided, the command uses the current browser session to refresh protected Bandcamp download URLs automatically; another audit is not required.

bandcamp-plex-sync download-missing --yes

Older or custom reports without bandcamp_user can provide it explicitly:

bandcamp-plex-sync download-missing --user USER --yes

FLAC is the default:

bandcamp-plex-sync download-missing --download-format flac --yes

Safety/testing options:

# Dry run; shows what would download
bandcamp-plex-sync download-missing

# Test with one item
bandcamp-plex-sync download-missing --limit 1 --yes

# Write somewhere other than /nas/music
bandcamp-plex-sync download-missing --destination ./downloads --yes

# Keep Bandcamp ZIP archives after extraction
bandcamp-plex-sync download-missing --keep-archives --yes

# Replace existing files
bandcamp-plex-sync download-missing --overwrite --yes

Downloaded album ZIPs are extracted into:

/nas/music/Artist/Album/

Single-track FLAC downloads are written similarly:

/nas/music/Artist/Track Title/Artist - Track Title.flac

auth-check

Verify that one of the supported browser profiles is logged in to the account that owns the requested collection and that Bandcamp exposes protected download URLs:

bandcamp-plex-sync auth-check USER

This is a diagnostic check only. It does not create a persistent login or store browser cookies.

fetch

Only fetch Bandcamp metadata:

bandcamp-plex-sync fetch USER --cookies-from-browser

scan

Incrementally scan local music metadata:

bandcamp-plex-sync scan --music-root /nas/music

The first run reads tags from every audio file and records the file size, nanosecond modification/change times, device, and inode in ~/.cache/bandcamp-plex-sync/music-scan.sqlite3. Later runs still walk the filesystem to detect additions, modifications, renames, and deletions, but they reuse cached tags for unchanged files instead of opening and parsing every audio file. This makes repeat scans much faster while retaining change detection.

The scan and audit commands both support:

# Put the checkpoint database somewhere else
bandcamp-plex-sync scan --checkpoint-db /path/to/music-checkpoints.sqlite3

# Ignore cached signatures and refresh every track's metadata
bandcamp-plex-sync scan --rescan-all

When --output or --output-dir is changed without an explicit --checkpoint-db, the database is placed alongside the JSON output.

compare

Compare previously fetched/scanned JSON files:

bandcamp-plex-sync compare

Authentication and browser cookies

Use --cookies-from-browser with fetch or audit when you want purchased download URLs. download-missing uses browser authentication by default because it refreshes and opens Bandcamp's protected download pages itself. Authentication is command-scoped; no login session is persisted between invocations.

Use auth-check USER to diagnose authentication independently before running an audit or download.

Every discovered profile in each supported browser is checked, rather than only the browser's default profile. The tool verifies that the selected session owns the requested Bandcamp collection before accepting its cookies; this prevents an anonymous or wrong-profile session from silently producing empty download URLs.

Supported browser cookie stores are tried in this order:

1. Firefox
2. LibreWolf
3. Chrome
4. Chromium
5. Brave
6. Vivaldi
7. Edge
8. Opera

If cookies fail to load:

• Make sure you are logged in to Bandcamp in one of those browsers.
• Close the browser if its cookie database is locked.
• Try running the command from the same desktop user account as the browser.
• Confirm the collection username is owned by the logged-in Bandcamp account.

Bandcamp subscription collection entries are not individually downloadable. Their album and track releases appear as separate downloadable collection items.

Matching behavior

The audit compares normalized artist, album, and track metadata. It uses local audio tags when present and falls back to Plex-style paths:

Artist/Album/Track.ext

The report distinguishes:

• matched: confident local match
• possible: fuzzy match worth reviewing
• missing: no good local match found

You can tune fuzzy matching with:

bandcamp-plex-sync audit USER --threshold 0.90

Higher thresholds produce fewer possible matches.

Privacy and safety

• The tool does not store your Bandcamp password.
• Authenticated Bandcamp redownload URLs are saved in bandcamp-collection.json and sync-report.json; treat these files as private.
• Existing music is skipped by default.
• The local SQLite checkpoint database contains file paths and music tags, but no Bandcamp credentials or browser cookies.
• Nothing is downloaded unless download-missing --yes is used.
• Nothing is deleted from your Plex library.

Development

uv sync
uv run python -m compileall -q src tests
uv run pre-commit run --all-files
uv run mypy src/bandcamp_plex_sync
uv run python -m unittest discover -s tests -v
uv build

License

MIT