ThirstOff

ThirstOff hides sexually explicit images, videos and text while you browse. Everything is analysed locally in your browser with an on-device AI model. The images and text you see, your searches and your browsing history are not sent to us or to anyone else.

FREE – no account needed
• Hides images as soon as they appear and shows only what is classified as safe.
• Covers explicit body regions with a black cover.
• Fails closed: if an image cannot be checked, it stays hidden. A manual reveal button is offered for single images.
• Site blocking with a built-in list of adult websites and your own list; optionally also the Internet Archive.
• Safe search for Google, Bing, DuckDuckGo, Yahoo, Brave Search, Ecosia and Reddit (on by default, switch off per service; YouTube optional).
• Optional lock: protect the settings with a password, a timer or a permanent lock.
• Streak: see how long you have stayed clean, with milestones.
• Blocked page with motivating quotes, or your own address.
• Available in English, German and Spanish.

PREMIUM – 7-day free trial, then a yearly subscription (price shown before you buy). Requires an account; payment is handled by Paddle.
• Checks videos, GIFs and YouTube timeline previews.
• More body regions; blur, pixelate and other display styles.
• Page text: hides clearly sexual text passages, optionally with your own terms.
• Search intent: stops clearly sexual searches on the search engines of your browser (Google, Bing, DuckDuckGo, Yahoo, Startpage, Ecosia and more), on the search of YouTube, TikTok, Reddit, Instagram, X, Pinterest, Facebook and Twitch, in the search address of any other website, and in the search box of any website when it is sent. The search term is checked on your device and never stored or sent.
• Learns sites: websites that repeatedly show clearly sexual text are added to your block list. Only the site name and short hashes of page paths are kept on your device.
• Daily-updated public lists of adult websites (HaGeZi, oisd), loaded only after you agree.
• Blocks endless short-video feeds (YouTube Shorts, Instagram Reels and Explore, Facebook Reels, TikTok) and, separately, software download portals.
• Block saving images: stops downloads of explicit or not yet checked images.
• Emergency mode: all protection on for 24 hours with one click.
• One account for up to 3 browsers.

PRIVACY
• Detection runs on your device. The images and text you see, your searches and your browsing history are not sent to us or to third parties.
• Network requests of the extension: the detection model from GitHub at first start (verified by SHA-256, then cached); the adult-website lists only with your consent; images or videos the page does not let the extension read, loaded again from the same server without cookies so they can be checked on your device; "Check again" for an automatically blocked site loads that site's start page once, without cookies; in a private window a blocked site is shown inside a neutral empty page from thirst-off.com (no scripts, no cookies; our server sees only the request itself); and, only if you create a Premium account, our account server and Paddle for sign-in, trial and payment.
• Free needs no account. No analytics, no ads, no tracking.
• Privacy policy: https://thirst-off.com/privacy/extension

Third-party: ONNX Runtime Web (MIT), NudeNet detection model (AGPL-3.0, downloaded from the official NudeNet GitHub repository); optional adult-site lists from HaGeZi and oisd (GPL-3.0, loaded as data, not bundled).