Tools / Dummy File Generator

Dummy File Generator

Generate dummy files of any size — 1 KB to 5 GB. Blank, random, or text content. Perfect for testing upload limits, disk quota, and bandwidth. 100% browser-based, no signup, no upload.

Private Files are generated in your browser — nothing is uploaded
Memory note: The file is built in your browser's memory before saving. Generating a 1 GB file uses ~1 GB RAM. Desktop browsers handle 2–4 GB fine. On mobile, stay under 200 MB.
File Size
= 100 MB = 104,857,600 bytes
Common upload limits:
File Type & Content
Runs 100% in your browser. Nothing is uploaded, stored, or shared.
Use cases: testing upload limits (WordPress, S3, Google Drive), verifying CDN upload speed, generating test files for backup tools, filling disk quota scenarios, testing email attachment limits, and creating sample data for storage benchmarks.

What is the Dummy File Generator?

Generate dummy files of any size — 1 KB to 5 GB. Blank, random, or text content. Perfect for testing upload limits, disk quota, and bandwidth. 100% browser-based, no signup, no upload.

It runs 100% in your browser — your files never leave your device, no signup is required, and there are no usage limits or watermarks.

How to Use the Dummy File Generator

  1. Paste, drop, or type your input into the tool above.
  2. Adjust the options to match what you need.
  3. Preview the result before copying or downloading.
  4. Everything is generated on your device — nothing is uploaded.

Why Use Our Dummy File Generator?

  • 100% private — files never leave your device.
  • No signup, no email, no limits — completely free.
  • Works on any device — desktop, tablet, mobile.
  • No watermarks, no hidden fees.

Frequently Asked Questions

Is the Dummy File Generator free?

Yes — completely free with no signup, no email, and no usage limits.

Are my files uploaded to a server?

No. Everything runs in your browser using JavaScript. Your files never leave your device.

Do I need to install anything?

No — just open this page in any modern browser (Chrome, Firefox, Safari, Edge).

Does the Dummy File Generator work on mobile?

Yes, on iOS and Android browsers. Very large files are best handled on desktop.

Is there a file size limit?

No hard limits. Files under 100 MB work well on most devices.

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