Watch Dog

Watch Dog is your personal guard dog for file uploads—lightweight, privacy-first, and free to scan. Whether you’re a non-technical user who just wants peace of mind or a seasoned developer seeking an extra layer of data-leak prevention, Watch Dog gives you real-time alerts whenever you’re about to share sensitive information online.

🔒 Privacy & Security You Can Trust
→ Zero-Data Retention: All scanning and redaction happens locally in your browser. No file data ever leaves your machine, and Watch Dog purges all temporary data immediately.
→ Minimal Permissions: Only the bare-minimum browser permissions needed to hook into file-upload dialogs. No sneaky back-doors or surprise telemetry.

🚀 Lightning-Fast, Ultra-Lightweight
→ Sub-200 KB Footprint: Installs in seconds and barely registers on your CPU or memory.
→ Instant Scans: Pattern-based detection runs in milliseconds—never slows you down.
→ Optimized Engine: Pure JavaScript core with WebAssembly–powered regex libraries for blistering throughput on large files.

🎯 What You’ll Get (Free)
→ Real-Time Alerts: Watch Dog “barks” whenever it spots sensitive content in a text or PDF file before you upload.
→ File-Type Support: Plain text (.txt, .rtf, .text), PDF (.pdf).

💎 Redaction (Pro Feature)
Upgrade to Watch Dog Pro for one-click redaction:
→ Redact Selected Items: Choose which keywords or patterns to blind out.
→ Redact All: Instantly scrub every detected secret from your file.
→ Seamless Workflow: Review, select, and download a redacted copy—all within the same modal.

🤝 Use Cases & Scenarios
→ LLM & Privacy-Conscious Users: Desensitise work-related or personal documents before dropping them into ChatGPT or any other large-language model—so you can get summaries, translations, or insights without exposing sensitive details.
→ Everyday Users: Avoid embarrassing overshares on social media or email—get a quick check before uploading resumes, photos, or documents.
→ Freelancers & Consultants: Never accidentally send proprietary client data or credentials when sharing drafts or demos.

📥 Installation & Getting Started
→ Click Add to Chrome on this page.
→ Open any upload dialog (email, cloud drive, social media).
→ If Watch Dog spots sensitive content, a notification will “bark”:
– Free users can view or dismiss.
– Pro users can redact in-place and download a clean copy.

📝 Frequently Asked Questions
→ Does Watch Dog ever send my data to a server?
No—never. All scanning and redaction occur locally, and no content is transmitted.

→ Does Watch Dog collect any usage data?
We value your privacy and DO NOT collect any personal or file data.

→ Can I trust the detection rules?
Absolutely—our pattern and keyword rules are continuously updated by security experts.

→ Will Watch Dog slow down my browsing?
It’s designed to be ultra-efficient. Scans and (Pro) redactions run in the background and complete in milliseconds, even on very large files.

🌟 Why Watch Dog?
→ Privacy-First: Your data remains yours—period.
→ Comprehensive: From casual users to security pros, everyone benefits from an added safety net.
→ Flexible: Free for detection; Pro for the power to redact on the fly.

Ready to stop accidental data leaks?
Add Watch Dog to Chrome today and upload with confidence!