Contact
Found a bug, spotted a wrong result, or want to suggest a tool? We read everything that arrives. There is no support portal and no ticket number — just a message.
Before you write: please do not paste secrets, private keys or tokens belonging to a live system into the message below. Redact them first. If you are reporting incorrect output, a redacted sample of the input is usually enough for us to reproduce it.
Send a message
This form does not send anything to a server. It assembles the text you enter below and opens a pre-filled draft in your own email client, which you review before deciding whether to send. Consistent with everything else on this site, nothing is uploaded in the process.
Email directly
You can also write to us without using the form above: 150042092@qq.com
What to expect
- Bug reports — we aim to acknowledge reports promptly and fix reproducible issues.
- Tool requests — everything added must work fully client-side, which rules out anything needing heavy server infrastructure.
- Business enquiries — we do not sell user data, and we do not accept payment to influence tool results.
Reporting a security concern
If you believe you have found a vulnerability in this site, please email rather than posting publicly, and include enough detail for us to reproduce the issue. We will acknowledge receipt and keep you informed while we investigate.