Privacy Policy

How we protect your data and respect your privacy

Last Updated: January 4, 2026

Introduction

At Cornerpen, we value your privacy and are committed to protecting your personal information. This Privacy Policy explains how we collect, use, and safeguard your data when you use our website and tools.

By using Cornerpen's services, you agree to the practices described in this policy. If you do not agree with our policies, please do not use our services.

Client-Side Processing & Local Storage

Cornerpen is designed with privacy at its core. Our key privacy features include:

  • Client-side processing: All our tools operate entirely within your browser. Your files and data never leave your device or get uploaded to our servers.
  • No server dependency: We do not use any servers for processing your data. All calculations, conversions, and operations occur locally on your device.
  • localStorage usage: For tools that need to save your preferences or work in progress, we use your browser's localStorage. This data is stored only on your device and is not accessible to us.

This approach ensures maximum privacy and security as your data remains under your control at all times.

Information We Collect

We collect minimal information necessary to provide our services:

Information You Provide

Any data you input into our tools (such as images, PDF files, text, etc.) is processed entirely on your device and is not transmitted to us.

Automatically Collected Information

We may collect standard web server logs and anonymous analytics data to help us improve our website, including:

  • IP address (anonymized)
  • Browser type and version
  • Operating system
  • Referring website
  • Pages visited
  • Time and date of visit

How We Use Your Information

We use the limited information we collect to:

  • Provide and maintain our services
  • Improve, personalize, and expand our services
  • Understand how users interact with our website
  • Detect and prevent technical issues

Data Storage and Retention

For tools that save your work or preferences:

  • Data is stored exclusively in your browser's localStorage
  • This data remains on your device until you clear your browser data or use the tool's clear/reset function
  • You can delete this data at any time through your browser settings

We do not have access to or the ability to retrieve data stored in your browser's localStorage.

Third-Party Services

Our website uses minimal third-party services:

  • Analytics: We may use anonymized analytics services to understand how users interact with our website. These services collect anonymous usage data.
  • CDN Services: We use Content Delivery Networks to serve our static assets efficiently.

These third-party services may use cookies or similar technologies. They operate under their own privacy policies, which we encourage you to review.

Your Rights

You have the right to:

  • Access any personal information we may have about you
  • Request deletion of your personal information
  • Object to processing of your personal information
  • Data portability
  • Withdraw consent at any time

To exercise these rights, please contact us using the information provided below.

Cookies and Similar Technologies

We use cookies and similar technologies sparingly and primarily for functionality purposes. You can control cookie settings through your browser preferences.

Changes to This Privacy Policy

We may update our Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last Updated" date.

We encourage you to review this Privacy Policy periodically for any changes.

Contact Us

If you have any questions or concerns about this Privacy Policy, please contact us at:

Email: cornerpen.feedback@gmail.com