How to use Random File Generator
What Random File Generator does#
Create a dummy file filled with random bytes at the exact size you need — perfect for testing uploads, storage quotas and bandwidth. Generated entirely in your browser.
How to use it#
- Open the tool and select your file, or drag and drop it onto the page.
- Adjust the available options to suit what you need.
- Run the tool and preview the result.
- Download your file in one click.
Your privacy#
Random File Generator runs entirely in your browser. Your data never leaves your device — there is no upload, and nothing is stored on our servers.
Frequently asked questions
Is Random File Generator free to use?
Yes. Random File Generator is completely free and needs no account or sign-up.
Is my data private?
Yes. Random File Generator works entirely in your browser, so your data never leaves your device.
Do I need to install anything?
No. Random File Generator runs online in any modern browser, on desktop or mobile.