Security & Privacy
Your data never leaves your device. Here's how we protect your privacy.
100% Client-Side Processing
All data cleaning happens in your browser using JavaScript. Your sensitive data never leaves your computer.
No Server-Side Processing
No file uploads. No server-side storage. No databases. Zero attack surface for your data.
GDPR Compliant
Since we don't process or store your data, we're not a data processor under GDPR. You maintain full control.
Open Source & Auditable
Our validation algorithms are open source. Review our code on GitHub to verify our privacy claims.
How It Works
You Upload a File
Files are read directly in your browser using the FileReader API. No data is transmitted over the network.
Validation Runs Locally
Our JavaScript validators check phone numbers, NI numbers, postcodes, sort codes, and email addresses entirely in your browser's memory.
Results Stay Private
Download your cleaned file directly from your browser. No server ever sees your data.
What We DO Store (For Account Management Only)
To provide you with a subscription service, we store:
- Account Information: Email address, password (hashed with bcrypt), name
- Subscription Details: Plan type, subscription status, expiration date
- Usage Metrics: Number of files processed (for billing/limiting purposes)
What we DON'T store: Your files, your data, any content from your uploads, or any information about the files you clean.
Security Best Practices
Frequently Asked Questions
Q: Can you see my data?
A: No. We never receive your files. All processing happens in your browser. Even we can't see what you're cleaning.
Q: Are my files stored on your server?
A: No. Files are never uploaded to our servers. They stay in your browser's memory for processing, then you download the result.
Q: Is this GDPR compliant?
A: Yes. Since we don't process or store your data, we're not acting as a data processor under GDPR. Your organization maintains full control and responsibility for the data.
Q: Can I verify this works as claimed?
A: Yes. You can monitor your browser's Network tab - you'll see no data being uploaded when you process files. Our code is also open source on GitHub.
Q: What about browser cache?
A: Your browser may cache JavaScript files (the validation code), but your actual data files are never cached. Close your browser tab and your data is gone.
Have Security Concerns?
We take security seriously. If you discover a vulnerability or have concerns about our security practices, please contact us.