Worried about losing your data online?
Scan Every Upload and get warned before leaking your data online
Your personal guard dog for file uploads—lightweight, privacy-first, and free to scan. Get real-time alerts whenever you're about to share sensitive information online, with Pro redaction features to protect your data.
Privacy & Security You Can Trust
Watch Dog is designed with your privacy and security as the top priority.
Once scanning is complete, Watch Dog immediately purges any temporary data it used, ensuring your sensitive information never leaves your device.
No sneaky back-doors or surprise telemetry. Watch Dog only requests the permissions it absolutely needs to function effectively, respecting your privacy at every step.
Pure JavaScript core with WebAssembly-powered regex libraries for blistering throughput on large files. You'll never be slowed down while uploading.
Choose Your Protection Level
All features are completely free to use. If you find Watch Dog valuable, consider supporting the developer.
If you find Watch Dog valuable, please consider supporting the developer with a coffee!
Simple, Effective Protection
Watch Dog works silently in the background, only alerting you when it matters.
Install the Extension
Add Watch Dog to Chrome with a single click. The lightweight extension installs in seconds.
Upload Files Normally
Continue using the web as usual. Watch Dog monitors file uploads in the background.
Get Alerted if Needed
If sensitive content is detected, Watch Dog will "bark" with a notification before you upload. Pro users can redact in-place and download a clean copy.
Who Benefits from Watch Dog?
From casual users to security professionals, everyone can use an extra layer of protection.
Desensitize 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.
Avoid embarrassing overshares on social media or email—get a quick check before uploading resumes, photos, or documents containing personal information.
Ensure you never accidentally send proprietary client data or credentials when sharing drafts or demos with clients or colleagues.
Supported File Types
Watch Dog currently supports scanning these file formats, with more coming soon.
.txt
Text Files
.rtf
Rich Text Format
.text
Plain Text
PDF Documents
Frequently Asked Questions
Find answers to common questions about Watch Dog.
Ready to stop accidental data leaks?
Add Watch Dog to Chrome today and upload with confidence!