The site
Contact
An email address staffed by people, and who is on the other end of it.
Contact email
We read and write in English and Spanish. It is an address staffed by people, not an automated mailbox.
Site operator
Marluna Studio LLC
A company incorporated in the United States
Operator of the utiliobox.com domain
What we can help with
- Something is broken. Tell us which tool, which browser, and what you did just before. If the file it fails on is not confidential, attach it: nothing speeds up a fix more.
- A tool or an option is missing. A good part of what is on this site came from one specific person asking for it.
- Privacy and data. Any question or rights request about the privacy notice. Bear in mind that the files you process never reach us, so there is no content of yours we could hand over or delete.
- Business use, press or advertising. Write to the same address and say so in the subject line.
What we cannot do
We cannot recover a file you have lost or regenerate a result for you: because the work happens in your browser, we never had a copy. We also cannot support third-party programs, even the ones that open the file this site produced.
If you would rather write from here
This form sends nothing on its own: it opens your mail program with the message already drafted, so you can review it and send it yourself. It is the same address as above; writing to it by hand works just as well.
Last updated: 25 August 2026.