# Welcome to Ad Sensei

Three ways to a cleaner, ad-free browse.

1. ## Skip YouTube ads

   Automatically skips YouTube's ads — clicks “Skip” the instant it appears and fast-forwards the rest. On by default.

2. ## Skip sponsor segments

   Detects creator-read sponsor and self-promo segments by analyzing the video transcript with AI, then skips playback past them — even on brand-new uploads no database has seen. On by default.

3. ## Block ads across the web

   Optional filter-list blocking of ads, trackers, cookie banners, popups, and social widgets on every site, with a per-site pause. Off by default — pick a level below.

## Pick your blocking level

Prefer to build your own? Pick individual features in settings. You can change level anytime from the popup or settings.

## What the AI does

One AI, five jobs — it makes the blocking smarter at every level:

- Detects sponsor segments in video transcripts
- Reviews popups before hiding them — logins and real dialogs survive
- Clicks “Reject” on cookie banners the filter lists miss
- Double-checks suspected ads before hiding, so real content stays
- Repairs the YouTube skip button when the site changes

Everything runs on Chrome's built-in AI by default — free, private, on-device, no setup. It's slower on very long videos. For fast, accurate analysis of anything (great for podcasts), add a free Google Gemini API key — no credit card needed. OpenRouter and fully-local Ollama are supported too (in settings).

Recommended free pair: add a free Groq API key alongside Gemini. They divide the work automatically: Gemini does the deep transcript analysis, while the quick helpers (popup review, cookie-consent clicks, selector repair) run on Groq's roomier free tier — so those bursts never eat Gemini's 5-requests-per-minute quota.

✓ Gemini key saved — sponsor detection will use it from now on.

✓ Groq key saved — the quick AI helpers will use it automatically.

Keys are stored locally and sent only to their own provider; Chrome will ask to allow access to each API host.

## Your data

Everything runs in your browser — what you watch, type, and read stays on your device. Optional anonymous diagnostics (which include the domain where an ad-detection event happened, never full addresses or page content) help us fix bugs; turn them off below or in settings anytime. The full details are in the privacy policy.

Send anonymous diagnostics & daily usage counts (includes the site's domain)

Privacy policy