Contact Us

We welcome your feedback!

How to Reach Us

Email: softkafu@gmail.com

Please write in English or Chinese. We typically reply within 3 business days.

Frequently Asked Questions

Q: Does the tool process my files?

A: No. All computation happens in your browser. Files are never uploaded.

Q: Do the tools work on mobile?

A: Yes. All tools are designed to work on mobile browsers.

Q: Are the tools free?

A: Completely free. No registration, no watermarks.

Reporting Issues

If you find a bug or display issue, please email us with:

• Browser name and version
• Operating system
• Steps to reproduce
• Screenshot if possible

Business Inquiries

For advertising partnerships, API licensing, or other business matters, please email with “Business” in the subject line.