Terms of service

The short version

Shelf is a Chrome extension built by an independent maker. By installing or using it, you accept these terms. If you cannot accept them, do not install or use the extension.

The extension

The Shelf extension source code is published under the MIT License. You may inspect it, fork it, and modify your own copy as the MIT terms allow. The Pro license check is honor-based — a determined developer can bypass it. Pro is for readers who want the maker to continue developing, not because they have to pay.

Pro and Founder Lifetime

Shelf Pro is a subscription. Shelf Founder Lifetime is a one-time purchase available to the first 200 supporters; once the cap is reached, the option closes permanently.

Both are sold through LemonSqueezy Inc. as the merchant of record. By purchasing, you also accept LemonSqueezy’s terms. Billing, taxes (VAT/sales tax), invoices, refunds, and chargebacks are handled by LemonSqueezy under their policies.

What Pro unlocks

The features listed as “Pro” on the pricing page. The list at purchase time is binding. Future Pro features added later are included for active subscribers and for Founder Lifetime holders. Features described as “Coming soon” on the pricing page are intent, not a commitment.

Refunds

Refund requests go through LemonSqueezy. The maker honors any LemonSqueezy-approved refund. For Founder Lifetime, refunds are accepted up to 14 days after purchase if the license has not been activated. After activation, refunds are case-by-case.

License keys and activation

Each license key has a limited number of device activations (default 5 for Pro Monthly/Yearly, unlimited for Founder Lifetime). Deactivating on a device frees a slot. Sharing license keys with others is not authorized.

Continuity

If Shelf the extension is discontinued, your saved items are markdown files on your machine — they don’t depend on Shelf existing. Billing continuity (refunds for unused subscription period) is handled by LemonSqueezy under their merchant-of-record terms.

Acceptable use

You may use Shelf for personal or professional reading workflows, including for-profit work. You may not:

• Resell the extension itself as your own product
• Use it to systematically scrape sites in violation of their terms
• Use it to clip and republish copyrighted content without permission
• Attempt to extract or redistribute other users’ license keys

No warranty

Shelf is provided “as is”, without warranty of any kind. The maker is not liable for data loss, missed exports, AI-generated summaries that misrepresent content, or any indirect or consequential damages. You are responsible for backing up the data that matters to you — the library backup feature makes this one click for Pro users.

AI features (Pro)

The AI auto-tag and auto-summary features use Chrome’s on-device Gemini Nano model when available, with optional cloud fallback via Groq. Outputs are best-effort and may be inaccurate. They are not professional advice. Do not rely on AI-generated summaries for decisions where accuracy matters — read the original source.

Changes to these terms

If material terms change, the date at the top of the page updates and active Pro subscribers receive an email through LemonSqueezy. Continuing to use the extension after the update means you accept the revised terms.

Governing law

Italian law, jurisdiction of the city where the maker is registered as a sole proprietor (partita IVA). For consumers based in the EU, mandatory consumer protections in your country of residence still apply.