JevBlock hides ads on websites using AI

A Chrome extension with a single purpose: it detects advertising blocks on web pages and hides them. When simple rules are not enough, an AI classifier checks the block, and your "ad / not an ad" marks make the filter more accurate.

Install from the Chrome Web StoreHow we handle data

How it works

1. Local detection. The extension looks for blocks with ad signals (disclosure labels such as "Advertisement", "Sponsored", "Promoted" or "Ad" — English and Russian labels are recognised today — plus ad slots and banners). Explicitly labelled blocks are hidden immediately, inside your browser.
2. AI check. If a block looks like an ad but has no explicit label, a short cleaned excerpt (up to 600 characters, links reduced to domain names) is sent to our server and classified by the Jev model from TypeSafe AI.
3. Your corrections. Every hidden block has "Show" and "Not an ad" buttons. Missed ads can be hidden via right-click → "JevBlock: hide as ad". Your decisions are remembered in your browser.

Login, payment, webmail and messenger pages and pages with password fields are skipped. You can exclude any site.

Plans

• Free ($0) — up to 300 AI checks per day (resets at 00:00 UTC). Cached answers, explicit ad labels and your personal rules do not count. When the limit is reached the extension keeps working locally.
• Premium — coming later: a higher daily AI limit. It will be sold by the service operator on this website (not through Google). Terms will be published before sales start.

Privacy in short

• No selling of data, no ads, no trackers. This website uses no scripts and no third-party fonts.
• Only excerpts of suspected ad blocks and the site origin (no path) are sent — never full HTML or your full browsing history.
• Your personal rules are stored locally in the browser and are removed with the extension.

Details: Privacy Policy · Terms of Use · Refund Policy · Support.