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Free online security scanner. Detects network threats, unsecured WiFi, trackers, and AI risks. No ads, no tracking, no paywalls. CyberGuard keeps you safe online without collecting your data, showing ads, or locking features behind a paywall. It's completely free. We built CyberGuard because online security tools are either too complicated or too expensive. This extension runs security checks on your network and browser to catch threats before they become problems. When something looks risky, you get a straightforward alert with clear steps to fix it. Everything runs locally on your device. We don't track what you do, store your data, or sell your information. Your privacy is yours. We believe security shouldn't be a luxury. Download CyberGuard today and browse with confidence. 🌟 Key Features 🔐 Real-Time Threat Detection Scans for common cyber risks like unsecured WiFi, MITM attacks, DNS hijacking, ARP spoofing, port scans, WebRTC IP leaks, HTTPS connection status, TLS certificate validation, and open ports on your network. 📡 WiFi & Network Safety Automatically checks for insecure or fake public WiFi networks that could compromise your data. Verifies VPN and proxy connections to ensure you're truly protected. 🕵️♂️ Tracker & Fingerprinting Blocker Blocks ad trackers, cross-site cookies, and fingerprinting scripts to protect your identity online. Monitors clipboard access and detects JavaScript injection attempts. 🤖 AI Security & API Protection Warns you if websites have exposed AI keys from OpenAI, Anthropic, Google AI, and other providers. 🔍 AI Traffic Monitoring Spots suspicious activity when you use ChatGPT, Claude, and similar tools. Blocks cross-origin injection attempts targeting AI applications. 🚨 Sensitive Data Alerts Warns you before submitting personal info to AI services. Scans input fields for sensitive data like passwords, credit cards, and personal identifiers. 📁 File Privacy Scanner Checks files for location data and personal details before upload. Detects metadata that could expose your privacy when sharing documents. 🛡️ Session Protection Guards your conversations on AI platforms from hijacking attempts. Protects against session theft on ChatGPT, Claude, Gemini, and other AI services. ⚔️ Prompt Injection Defense Protects against malicious prompts trying to manipulate AI tools with optional LockLLM integration for advanced AI security scanning. 🎥 Webcam & Mic Monitoring Get notified if any site attempts to access your webcam or microphone without your knowledge. ⚡ One-Click Scan with Smart Alerts Quickly check your current connection for vulnerabilities and get easy-to-follow fix suggestions, no tech skills needed. Most scans finish in under 5 seconds. 📊 Performance Tools Built-in internet speed test and connection quality monitoring to help you understand your network performance. ☁️ Sync Across Devices Save your security preferences via Chrome Sync, totally private, no personal data shared. 1. Zero Data Collection We don't track your browsing, collect your information, or send data to any servers. All security checks run on your device. The only time data leaves your browser is when you use the optional LockLLM integration, and that's only the text you're scanning, nothing else. 2. Built for Everyday Users CyberGuard is simple, intuitive, and doesn't require any technical knowledge to use or understand. Clear explanations and actionable steps for every alert. 3. Detects More Than Just Ads Unlike basic blockers, CyberGuard scans your network environment and browser activity for real cyber threats including MITM attacks, DNS hijacking, and AI-specific vulnerabilities. 4. Fast & Lightweight Optimized for performance so your browsing stays fast and smooth, with no lag or heavy memory use. Uses minimal resources and won't slow down your browser. 5. Transparent & Trustworthy Open about what we do and what we don't. No dark patterns, trackers, or sketchy upsells. No analytics, no tracking pixels, no "anonymized" data collection. 📈 Perfect For: - Remote workers who connect to public WiFi - Privacy-conscious users who want more than just ad blocking - Developers and security researchers testing systems - Students on university networks - AI users who want to protect their prompts and API keys - Anyone who wants straightforward protection without technical knowledge or paying for subscriptions 📥 Get Started 1. Install CyberGuard 2. Click the icon and hit Scan 3. Review any alerts and follow the fix steps 4. (Optional) Add your LockLLM API key in Settings for AI security features AI Security Features We added a full suite of AI-specific security checks: • Detects exposed API keys for OpenAI, Anthropic, Google AI, and other providers • Monitors AI platform traffic for suspicious patterns • Scans for sensitive data in input fields before you submit • Browser AI Guard integration with LockLLM API for real-time prompt injection detection • Protects against session hijacking on ChatGPT, Claude, Gemini, and other AI platforms • Blocks cross-origin prompt injection attempts Enhanced Privacy • File metadata scanner warns about location data and personal info in uploads • Improved clipboard protection • Better fingerprinting detection UI Improvements • Cleaner settings interface with organized sections • API key configuration for LockLLM integration • Real-time connection testing • Better error messages and status indicators Download CyberGuard today and browse with confidence.
Analytics & Ad Blocker: Open Source Privacy Firewall
An extension for privacy and security for the internet. Analytics & Ad Blocker: The Ultimate Open-Source Privacy Firewall Take total control of your browser. Block ads, disable scripts, and visualize your carbon footprint with a professional-grade, open-source toolkit. Analytics & Ad Blocker is an open-source browser firewall that blocks ads and tracking scripts, lets you control heavy page resources, and shows what third parties try to load on the sites you visit. It is designed for people who want transparency, local processing, and granular controls instead of black-box blocking. Ad and tracker blocking: Blocks many common advertising and tracking requests Custom network request blocking: Create rules to block specific domains, URLs, or scripts Toggle content types: Quickly disable JavaScript, images, or videos to speed up pages and reduce load Live tracker dashboard: View third-party activity and request behavior in real time across tabs Local-first privacy: Blocking decisions and dashboard insights are processed on your device Open-source integrity: No paid whitelisting and no acceptable ads program Live tracker dashboard details. Use the dashboard to understand what a page is doing behind the scenes. Live tag monitoring: See tracker tags and third-party requests as they attempt to run Data audit visibility: Identify which sites are most aggressive with third-party connections Impact metrics: Correlate blocked requests with lighter page behavior for everyday performance gains. Extension Analysis: Have the ability to vet another extension to see if it is safely using permissions. Download source code for additional analysis. 🛠 Total Granular Control (New Features) Go beyond basic ad blocking. Our advanced toolkit allows you to toggle specific web elements on the fly to maximize speed and minimize energy consumption: Block Custom Network Requests: Create your own rules to stop specific domains or scripts from ever connecting. Toggle Content Types: Instantly disable JavaScript, Images, or Videos with a single click—perfect for "Ultra-Low Power" browsing and extreme speed. Open-Source Integrity: 100% transparent. No "Acceptable Ads" programs, no paid whitelisting. Check our code on GitHub and contribute to the mission. Stops common trackers and analytics tags from loading so you share less data by default Reduce page bloat by blocking unwanted network requests and optionally heavy resources Help you identify which websites load the most third-party scripts and requests Improves browsing focus by removing ad interruptions 📊 The Live Tracker Dashboard See exactly what’s happening behind the scenes. Our Custom Dashboard provides a real-time visualization of your privacy: Live Tag Monitoring: Watch exactly how tracker tags (Google, Adobe, Yahoo) try to fire across all your open tabs. Impact Metrics: See the direct correlation between blocked scripts and your reduced carbon footprint. Data Audit: Identify which websites are the "hungriest" for your data and your device's energy. View Other Extension Permissions: Have the ability to use AI analysis to identify if an extension is using their requested permissions appropriately. 🚀 Why We Outperform the Rest By combining the light footprint of uBlock Origin with the deep insights of Ghostery, we offer a unique "Sustainability Suite": A greener internet: By blocking JavaScript and heavy media, you drastically reduce CPU/RAM usage, extending your laptop’s battery life and lowering CO2 emissions. Privacy-First Architecture: We never collect your data. All request blocking and dashboard analytics are processed locally on your device. 🌍 A Greener Internet Starts with You The internet consumes more electricity than many countries. A massive portion of that is wasted on tracking scripts you never asked for. Analytics & Ad Blocker lets you opt-out of the waste and join the Globemallow.io mission for a sustainable digital future. Key Features at a Glance: Advanced Blocking: YouTube Ads, Google Analytics, Social Pixels, and custom CSS/JS. Performance: Drastically reduces page weight for 2x faster loading. Stop being a passenger in your own browser. Switch to the open-source ad blocker that gives you the dashboard, the control, and the conscience to browse better. Does it collect my data? No. The extension is built to work locally and does not require an account. Can I block a specific website or script that annoys me? Yes. You can add custom blocking rules for domains or specific requests. Will disabling JavaScript or media break sites? Some sites rely on scripts and media. The one-click toggles make it easy to turn resources off for speed, then turn them back on if a site needs them. Is it really open source? Yes. The project is open source so you can review the code, verify behavior, and contribute. Who is it for? Privacy-focused users who want fewer trackers and ads Power users who want per-site controls and custom rules Anyone who wants faster browsing and fewer unwanted third-party connections Take control of what loads in your browser with an open-source ad and analytics blocker that prioritizes transparency, local processing, and real user control.
AVP Online Security & Privacy
More than a Browser Protection to Secure Your Digital Life and Faster Browsing Experience It is a browser protection extension on Google Chrome Web Store available for all users. This is designed to provide users with a secure digital experience. It is more than a browsing protection. It not only ensures a safer and faster browsing experience but also includes a gamut of security features including malicious URL scanner, phishing detector, file scan, ad blocker, website blocker and lot more to secure your digital life.
ShieldSpan Adblock
Blocks banners, video ads, popups, and tracking domains with no exceptions with ShieldSpan Adblock Ad Blocking Powerhouse: Say goodbye to intrusive banners, video ads, popups, and tracking domains. Selective Control: Disable ad blocking on specific websites to support your favorite content creators. Seamless Experience: Effortlessly navigate the web with zero setup hassles. Purely Ad-Free: Enjoy an internet experience with no compromise, no acceptable ads in sight. Upgrade your browsing with ShieldSpan Adblock now!
FDev Security
You are protected absolutely with our awesome features: Realtime protection, block seen and typing indicator, blur messenger! # INTRODUCTION You are often afraid about "malicious" websites on the internet. It seems that you cannot know when your sensitive data was stolen by attackers. And when your information, data is hacked by someone (such as banks account, Facebook, ...), you just realized that your data is very importance and you begin to care about the security when you browsing in the Internet. Let's CoderDocs Security protect you with real-time protection feature. And we also has another awesome features like: Facebook (+Zalo) privacy, Privacy Web Experience, Blur Messenger, Malware URL scanning, .... # FEATURE 1: REAL-TIME PROTECTION When you install CoderDocs Security extension successfully, this feature will enable real-time immediately. This feature is the most important, so you cannot disable it. When you visit a malware site, the warning popup will be displayed to warning you about this malicious site. # FEATURE 2: FACEBOOK (+ZALO) PRIVACY You can easily enable / disable this feature by check or uncheck the checkbox of every small functions. This feature includes: - Block "Seen" indicator: When you receive a Facebook message, you click to view this message, the sender will see the status "seen" in their message space. But if you enable this function, the sender can not see the status "seen" any more. They never know whether you saw the message or not. - Block "Typing" indicator: Similar with block "seen", the sender can not see the "typing" indicator when you compose the message in Facebook message space (the three dots indicator "..."). - Block "Seen" status in Story: When you click to view the Story of someone, they will know that you have seen their Story. But with this function, nobody can know that you saw their Story. You can click and see your ex-girlfriend any time. - Block "Typing" indicator in Comments space: When you are typing the comment in any post. People can see the indicator "Someone are typing ...". But if you enable this function, this indicator will be disappear forever. - NOW, it support block seen and typing indicators in Zalo web version. Note: Block "Seen" status in Story and block "Typing" indicator in Comments are disable now because some technical problems. # FEATURE 3: PRIVACY WEB EXPERIENCE You can also easily enable / disable this feature by check or uncheck the checkbox of every small functions. This feature includes: - Block important sites when you absent: When you go out, you forgot to lock your computer, someone can open you browser, they can open some important site such as Facebook, Gmail and see your sensitive information. If you don't want that thing happen. Let enable this function. It allow you to block some importance sites that you don't want anyone access to if you have to lend your computer or you go out. - Block tracking Ads Scripts: This function allow you to block the tracking scripts like Facebook, Google. For example, you go to an e-commerce website, when you comeback to Facebook, the previous items in e-commerce website will be display. You can enable this function to block them. - Browser for kids: This function allow you to block almost porn sites in the world. If your kids uses your computer, let enable this function. # FEATURE 4: URL MALWARE SCANNING This is a feature that allow you to operate directly on the user interface. Let go to menu path: TOOLS / SECURITY / MALWARE SCAN and explore this feature. This feature allow you to analyze any URL and inform for you if the URL will be redirected to the website that contains any malware/virus. # FEATURE 5: BLUR MESSENGER This feature allow you to hidden all information when you chat with someone in the Messenger (messenger.com). Just don't care anyone who often peek at your messages. It only work with Messenger - Open Messenger (messenger.com) - Click Settings Icon in the left side bar. - Enjoy the new Messenger feature. More information about CoderDocs Extension: https://lenhatthanh.com/en/coderdocs-security/
