ExtLabTerms of service
Last updated November 5, 2026
These terms apply when you use extlab.app or an ExtLab browser extension. ExtLab is run by Vizzmo. By installing an extension or buying a plan, you agree to them.
Using the extensions
Free features are free to use for personal and business purposes. We grant you a personal, non-exclusive licence to use the extensions. You may not resell them, or bypass their license checks or usage limits.
Paid plans
- Paid plans are yearly subscriptions sold through Gumroad, which is the merchant of record.
- Your plan renews each year until you cancel. Gumroad's terms also apply to your purchase.
- If you cancel, your license keeps working until the end of the year you paid for.
- Each plan allows a set number of installs per license key, shown on its product page.
- An extension keeps its paid features for 14 days if it cannot reach our license server.
- We may change prices for future renewals, and we tell you before they apply.
Refunds are covered by our refund policy.
Your responsibilities
You are responsible for how you use the extensions. That includes having the right to access and display the websites you use them with, and keeping your license key private.
Other websites and services
The extensions work with websites and services we do not control. Changes to those services or to your browser can stop a feature from working. ExtLab is not affiliated with Google or with the products named on this site.
No warranty
The extensions are provided "as is", without warranties of any kind, to the extent the law allows. We do not promise they will be uninterrupted or free of errors.
Limit of liability
To the extent the law allows, we are not liable for indirect or consequential losses, or for lost profits or data. Our total liability is limited to the amount you paid us in the 12 months before the claim.
Your legal rights
Nothing in these terms limits rights you have under mandatory consumer law.
Ending your use
You can stop at any time by uninstalling the extension and cancelling your plan. We may suspend a license that breaks these terms. We may also discontinue a product, and if we do so during a paid year, we refund the unused part of that year.
Changes to these terms
We may update these terms and revise the date at the top. If you keep using the extensions after a change, the new terms apply.