Dummy file creator

Quickly create placeholder files of any extension and size for testing uploads, performance checks, or storage limits.

Choose an extension and file size, then press “Generate file” to create a downloadable placeholder.

What is Dummy File?

Dummy File is a free data generator from WizardOfAZ. Use it to work with sample datasets using flexible options as part of your testing and demos, without installing extra software.

Because everything happens locally in your browser, your synthetic data stay under your control while you work with sample datasets using flexible options.

Popular ways to use Dummy File

Streamline testing and demos by using Dummy File to work with sample datasets using flexible options.
Share deliverables faster—processed sample datasets are ready for download in seconds.
Combine Dummy File with other WizardOfAZ tools to keep complex workflows in one browser tab.

Examples and workflow tips

Upload a sample file, cast the spell to work with sample datasets using flexible options, and download the processed result instantly.
Bookmark the Dummy File in your browser so recurring tasks stay only one click away.
Share the spell with teammates who need a quick, no-install way to work with sample datasets using flexible options.

Frequently asked questions

Is the Dummy File secure?

Yes. The Dummy File runs entirely in your browser, which means your synthetic data never leave your device.

What can I do with the Dummy File?

You can testing and demos by processing sample datasets without uploading them to an external service.

Can I use Dummy File on mobile?

Yes. WizardOfAZ tools are responsive, so you can launch the spell on desktops, tablets, or phones without installing extra apps.

Related tools to explore

Expand your toolkit with other WizardOfAZ spells that complement Dummy File:

Barcode Generator — Use it to generate ready-to-use sample datasets.
Color Palette Generator — Use it to generate ready-to-use sample datasets.
Country City Generator — Use it to generate ready-to-use sample datasets.