Contact

This site is run by one developer, so email reaches me directly. I read everything and usually reply within two to three working days.

What to write about

• Something is broken. Tell me the file type, the size you asked for, and the browser you used. Generation runs in your browser, so the browser and its version matter more than anything else.
• A format is missing. Say which extension you need and what you are testing with it — upload validation, MIME sniffing, a size boundary — so the generated file is actually useful for that job.
• A guide is wrong or out of date. Upload limits change often. Point me at the page and, if you have one, a link to the current official limit; I will correct it and note the revision date.
• Sponsorship or collaboration. I am open to a single sponsor slot on the editorial pages if the product is relevant to testers and developers.

What I cannot help with

I cannot recover or inspect files you generated — they never leave your device, so there is nothing on the server to look up. I also cannot produce files containing real personal, financial or production data; everything here is synthetic test content by design.

For how this site handles data, see the privacy policy. For who builds it and why, see about.