We'd love to hear from you! Whether you have questions, feedback, feature requests, or just want to say hello, we're here to help. Your input helps us improve Domain Filter Tool and serve our community better.
Need help using the tool or have questions about features? We're here to assist you.
Email: support@domainfiltertool.com
Found a bug or experiencing technical issues? Let us know so we can fix it quickly.
Email: bugs@domainfiltertool.com
Have an idea for a new feature? We love hearing suggestions from our users.
Email: features@domainfiltertool.com
Interested in partnerships, collaborations, or business opportunities?
Email: business@domainfiltertool.com
Yes! Domain Filter Tool is completely free with no hidden costs, premium tiers, or feature restrictions. Everyone gets access to the full functionality.
Absolutely! All file processing happens locally in your browser using JavaScript. Your files are never uploaded to our servers or any third-party services. Your data remains completely private and secure on your device.
We support CSV and XLSX (Excel) files. The tool can handle files with over 2 million rows without performance issues.
Please email us at bugs@domainfiltertool.com with details about the issue, including your browser version, file type, and steps to reproduce the problem. We'll investigate and fix it as quickly as possible.
Yes! We actively welcome feature suggestions from our users. Email your ideas to features@domainfiltertool.com. While we can't implement every suggestion, we carefully consider all feedback when planning updates.
For enterprise inquiries, custom implementations, or white-label solutions, please contact us at business@domainfiltertool.com to discuss your specific needs.
We strive to respond to all inquiries within 24-48 hours during business days. For urgent issues, please mark your email as "Urgent" in the subject line.