Contact
There is no contact form, because a form would need a server to receive it — and the whole point of this site is that there is not one.
Replies are usually within a few days. This is an independent project run by one person, so please be patient.
Reporting a wrong answer
This is the most valuable message you can send. If a tool produces output you believe is incorrect, please include:
- which tool, and the settings you used
- what you put in — or a description, if the file is confidential
- what came out, and what you expected instead
- your browser and operating system
Please do not attach confidential files. The entire proposition of this site is that your documents stay on your device, and emailing one to report a bug undermines that. A description of the problem, or a small file you have made up that reproduces it, is more useful and safer.
Suggesting a tool
Suggestions are welcome. The one constraint that decides most of them: it has to be possible in a browser without a server. Anything needing a large model, a licensed engine or a proprietary format converter cannot be built here, however useful it would be.
Corrections to the writing
The explanations on the tool pages aim to be accurate, not merely plausible. If something is wrong — a factor, a definition, a claim about how a format works — please say so. It will be corrected.
Business
For anything commercial, use the same address and say so in the subject line.