Empty Dummy File Generator (Exact Bytes)

Create and download blank zero-filled dummy files of any exact byte size for testing uploads and storage.

How It Works & Processing Standards

Create and download blank zero-filled dummy files of any exact byte size for testing uploads and storage.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Desktop max file size: 100MB
  • Mobile max file size: 40MB

Empty Dummy File Generator (Exact Bytes) is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use Empty Dummy File Generator (Exact Bytes)

  1. 1
    Set Name & SizeEnter filename and desired size in bytes.
  2. 2
    Generate FileDummy file is synthesized instantly client-side.
  3. 3
    DownloadSave your test file.

Common Use Cases

  • Testing maximum upload size limits and storage threshold alerts in web applications
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