Whether you have a tool idea, found a bug, want to report a copyright concern, or just have a question — we'd like to hear from you. Most tools on this site started as a message from someone like you.
Tool ideas & suggestions
hello@dua9.online — Tell us what tool you wish existed. We build from real needs.
Bug reports
bugs@dua9.online — Please include the tool name, browser, and what you expected to happen vs. what happened.
Legal, DMCA & Privacy
legal@dua9.online — Copyright concerns, DMCA notices, privacy requests, and legal inquiries.
Partnerships & advertising
partners@dua9.online — Collaboration, sponsorship, and media inquiries.
Everything else
hello@dua9.online — We typically respond within 24–48 hours on weekdays.