StreamThenOwn

Stream it. Love it. Own it.

🤖 This project was built with the help of AI (GitHub Copilot).

StreamThenOwn is a browser extension that adds purchase links (Discogs, Qobuz, Amazon, Bandcamp) next to albums and songs on music streaming services. Stop renting your music — own it.

Supported platforms

Streaming service	Status
YouTube Music	✅ Supported
Spotify	✅ Supported
Apple Music	✅ Supported
Deezer	✅ Supported
Amazon Music	✅ Supported

How it works

1. Browse your favourite streaming service as usual
2. StreamThenOwn detects the artist and album you're viewing
3. A button appears — click it to reveal purchase links
4. Choose your store and buy the music you love

Links are resolved via MusicBrainz when possible (direct links), with search-fallback URLs for every store so you always get a result.

Features

• One-click purchase links — Discogs, Qobuz, Amazon, Bandcamp
• Direct links when available — resolved via MusicBrainz API
• Search fallback — always provides a link, even without an exact match
• Custom search providers — add your own stores (eBay, Boomkat, JPC…)
• Drag-and-drop reordering — choose which stores appear and in what order
• Locale-aware — store URLs adapt to your country (Amazon.fr, Amazon.de…)
• 15 languages — English, French, Spanish, German, Italian, Portuguese (BR & PT), Japanese, Korean, Dutch, Polish, Swedish, Danish, Norwegian, Finnish
• Privacy-first — no personal data collected, no tracking, no accounts

Install

From the store

Browser	Link
Google Chrome	Chrome Web Store
Microsoft Edge	Edge Add-ons

Manual install (development)

make install
make build

Then load the dist/ folder as an unpacked extension in chrome://extensions (enable Developer mode).

Privacy

StreamThenOwn respects your privacy:

• No personal data is collected or transmitted — the extension does not collect browsing history, personal information, or usage analytics
• No accounts or sign-up required
• No tracking scripts or pixels
• Metadata queries are anonymous — the extension sends only artist and album names to MusicBrainz to resolve purchase links. No user-identifying information is included
• All code is open-source and auditable in this repository

Full privacy policy: PRIVACY_POLICY.md

Permissions explained

Permission	Why
storage	Save your store preferences (enabled stores, order, custom providers)
Host: music.youtube.com	Inject the STO button on YouTube Music pages
Host: open.spotify.com	Inject the STO button on Spotify pages
Host: music.apple.com	Inject the STO button on Apple Music pages
Host: www.deezer.com	Inject the STO button on Deezer pages
Host: music.amazon.*	Inject the STO button on Amazon Music pages (all regional domains)
Host: musicbrainz.org	Query the MusicBrainz API to resolve purchase links

No other permissions are requested. The extension cannot read your browsing history, passwords, or any data outside of the listed streaming services.

Development

All commands run inside Docker via the Makefile:

make install        # npm install
make build          # Production build
make watch          # Watch mode (dev)
make typecheck      # tsc --noEmit
make lint           # ESLint
make test           # Vitest
make validate       # Full CI pipeline
make zip            # Package for store submission

See .github/copilot-instructions.md for architecture details and contribution guidelines.

License

MIT