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Stay focused on YouTube. Set a goal and hide off-topic recommendations until you choose to reveal them. Stay focused on YouTube without getting pulled into unrelated videos. Tell OnPurpose what you came to learn or solve. It hides off-topic recommendations so you can stick with your goal. Reveal any hidden video, save it for later, or pause filtering whenever you want. After time spent watching clearly off-topic videos, a centered reminder pops up over the video while playback continues, including in fullscreen. The default is 10 minutes. Choose any positive whole number of minutes in Settings. Relevant and uncertain videos stay quiet. Close with X or Esc to restart the timer. Turn OnPurpose on or off from its toolbar popup or by right-clicking its toolbar icon. Off restores plain YouTube and keeps your settings and saved videos. It stops new model requests and aborts requests in progress; calls already sent may still incur provider charges. Works only on YouTube in desktop Chrome. Free and open source. Requires your own OpenRouter API key, with model usage billed separately. Your goal and video metadata go to OpenRouter and its Jev provider. Saved videos stay on your device. No analytics.
Sep 26, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.