BlockNSFW – Porn & Adult Content Blocker

Blocks adult websites and inappropriate content using pattern matching and configurable filtering for safer browsing.

BlockNSFW is a powerful yet lightweight browser extension that keeps your browsing safe, focused, and family-friendly. It automatically blocks pornographic and adult websites before they load — so unwanted content never reaches your screen. Unlike simple site blockers that rely on a single list, BlockNSFW layers several detection methods that work together. It filters adult domains, understands hostnames in multiple languages, enforces SafeSearch, and now uses on-device AI to read page text and scan images — catching explicit content even when the web address gives nothing away. All of it runs locally in your browser. 🔑 Key Features Adult Website Blocking – Blocks known pornographic domains and adult platforms before the page loads, with regularly updated blocklists. AI Text Protection (Beta) – A tiny multilingual model reads the page's text on your device to catch adult sites across many languages, including Russian, Chinese, and Arabic. AI Image Protection – Scans images on your device and blocks explicit ones — even when nothing in the URL is suspicious. Your images are never uploaded. Multilingual Hostname Filtering – Detects adult hostnames across major non-Latin scripts and transliterated Latin, including internationalized (IDN/punycode) domains. SafeSearch Enforcement – Forces family-safe search results across major search engines, including Google and Bing. DNS Protection (optional) – Adds a network-level layer using Cloudflare for Families to stop adult domains before they resolve. Safer Social & Video – Blocks adult communities, hides short-form video reels, and filters age-restricted content. Stats, Streaks & Whitelist – Track what's been blocked, build streaks, manage your own allowlist, and review an activity audit — all stored locally. Guided Setup – A simple onboarding wizard gets you protected in seconds. Lightweight & Fast – Runs quietly in the background with minimal impact on browsing speed. 👥 Who Is It For? Parents who want a safer browsing environment for their kids. Students and professionals who want to stay focused and avoid distractions. Anyone who prefers a cleaner, family-safe internet experience. 🔒 Privacy-Friendly The AI models are bundled with the extension and run entirely on your device — no accounts, no sign-ups, and your browsing isn't tracked or sold. (Some optional features, like remote blocklist updates and DNS filtering, make network requests to provide protection; see the privacy policy for details.) With BlockNSFW, you stay in control of what loads in your browser. Simple, effective, and built for privacy.