nowfound

Alternatives

Products that do what StopX – AI-powered content blocker with 99.7% does

Built StopX after struggling with the limitations of traditional blocklist-based filters. Most existing solutions rely on static URL databases that are constantly outdated and easily bypassed. Our approach uses proprietary WebShield™ technology that combines: Real-time AI image recognition for visual content analysis Contextual URL pattern matching beyond simple domain blocking Cross-device synchronization with encrypted settings sync Military-grade bypass protection with stealth mode operation The interesting technical challenge was achieving 99.7% accuracy while maintaining sub-100ms…

  1. 1

    Blocks ads, stops trackers, and speeds up websites

    2018

  2. 2

    Block prompt inject & cut token costs for AI browser agents

    Jun 2026 · github.com

  3. 3

    A fast and secure content blocker for iOS

    2018

  4. 4

    Check if your robots.txt allows ChatGPT, Google Gemini

    Sep 2025

  5. 5
    WebLens178

    AI powered A/B testing ideas for your website

    2024

  6. 6

    Control your website traffic with click and block technology

    2017

  7. 7
    WebBrain117

    The sidebar agent for the rest of us

    24d ago · webbrain.one

  8. 8
    CtrlAI104

    Transparent proxy that secures AI agents with guardrails

    Mar 2026

  9. 9

    Anonymize client docs before you paste them into AI

    Jul 2026 · promptshield.ca

  10. 10

    AI-powered phishing detection for safer browsing

    Jun 2026 · chromewebstore.google.com

  11. 11CH

    There is a growing number of companies offering anti-bot protection SaaS to protect websites from scraping by automated bots based on Puppeteer/Selenium. Most of them rely on browser properties such as headers, javascript properties (window., navigator.), behavior analysis, to build device/user fingerprints and match it against a database of "whitelisted" fingerprints (typical user behavior/settings/device props etc). For the past few months, together with two other devs I have worked on a customized Puppeteer/Playwright scraping backend. It's essentially a drop-in…

    2021

  12. 12AB

    i made an ai blocker blocks ai relate content. if want download it from chrome or safari extension store, consider donate :)

    Feb 2026 · kiddokraft.org

  13. 13RG

    Hey HN, I wanted to share something I’ve been working on: *RAG-Guard*, a document AI that’s all about privacy. It’s an experiment in combining Retrieval-Augmented Generation (RAG) with AI-powered question answering, but with a twist — your data stays yours. Here’s the idea: you can upload contracts, research papers, personal notes, or any other documents, and RAG-Guard processes everything locally in your browser. Nothing leaves your device unless you explicitly approve it. ### How It Works - * Zero-Trust by Design*: Every step happens in your browser until you say otherwise. - * Local…

    2025 · github.com

  14. 14CP

    Hi HN, I built CountermarkAI, a lightweight anti-scraping & bot-detection tool for content creators and website owners. It’s designed to help protect your work from unauthorized scraping and AI training, that repurposed your work without permission. How It Works: Use Hashtag – Creators add a unique hashtag to their content as a declaration of ownership. Protect Website – For those running your own sites, simply add a small snippet to your . The protect.js script works asynchronously by sending metadata from every page load back to our servers, logging requests, and flagging known AI-training…

    2025 · countermarkai.com

  15. 15IB

    The only way to go fast is full YOLO mode in your coding agent. I've got the local sandbox figured out (pro tip: Incus VMs work great) but I wanted to keep my agents from doing things like inadvertently blowing up my cloud services or chasing a prompt to POST to some random website. I struggle most with this on my side projects where my permission model isn't quite as robust as it is at the office. I started with a firewall on the Incus container but every time the agent needed access to something new, I was poking more holes in it - and it didn't differentiate between HTTP verbs. I've been…

    Jul 2026 · trollbridge.dev

  16. 16

    The stealth browser engine for scrapers and AI agents

    Jul 2026 · github.com

  17. 17

    Hide labeled AI content without breaking the web

    Jun 2026 · mt211211.github.io

  18. 18

    AI-powered real-time content moderation & censorship shield

    Jul 2026 · guardextech.com

  19. 19

    Check if AI search can actually read and cite your site

    19d ago · seo.codequest.work

  20. 20FB

    Hi HackerNews, It’s Etienne CTO of dev-tools.ai. We are launching our product today and wanted to share because we think it might help folks here. Do you ever have broken selectors in your UI tests? Are you tired of maintaining them? We have thought about this issue and come up with a solution. We have created a Python SDK for Selenium that allows you to visually identify elements (using machine learning under the hood). Since our technology uses the visual appearance of elements and ML, it is more resilient than XPaths or pixel perfect match and should help you get rid of broken selectors.…

    2022 · dev-tools.ai

  21. 21

    AI website blocking for students who keep escaping blockers

    Jun 2026 · getfocusai.com

  22. 22FA

    Would like to share here a project that we have been working on for the last ~10 months. It all started with the goal of properly blocking adult & explicit content out of our own kids devices and expanded it to a free service that anyone can use. Feedback is welcome: https://cleanbrowsing.org CleanBrowsing is free Anycast DNS resolver that automatically blocks adult content and enforces safe search on Google, Google Image search, Bing, Youtube, etc. We have been crawling and categorizing the web for many months and we feel it got to a point where our database is large enough and we…

    2018

  23. 23CE

    I'm so tired of all that crappy AI content that is published every day. It's becoming way harder to find genuine creators on the internet because they are being overshadowed with massive amount of AI-driven material. I think I'm not the only one who thinks like that and that is why I've published "Is Generated" it's a community based Chrome Extensions where users can report, vote and block the content they suspect is AI-generated. Together, we can take back control and make the internet a better place for authentic creators!

    2025 · chromewebstore.google.com

  24. 24

    STOP-IT V2 Porn Blocker, NSFW, phishing and ads instantly.

    Jul 2026 · stop-it.be

Ranked by how close each launch is in meaning, then by votes. Refine with a description →