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Dummy file

Download 3 GB Dummy BIN

Download a 3 GB dummy file: test file at an exact size for upload limits, timeouts and memory — format-agnostic.

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File information

Size
3 GB (3,221,225,472 B)
MIME
application/octet-stream
Extension
.bin
Checksum
36e7ddb4e9b02bbd (Generation ID)
Created
on demand

How to use this file

A BIN of 3 GB exercises the same path when the format does not matter: web-server and PHP limits, proxy timeouts, memory, and whether the stored size is exactly 3 GB.

At this size, reading the whole body into memory instead of streaming it fails fast. For everyday tests, smaller files are enough.

This is a valid BIN of the stated size, generated for testing — not a finished document.

FAQ

What is this file?
A 3 GB dummy BIN file (application/octet-stream) for software tests. Extension: .bin.
How can I use it?
To stress the upload path at 3 GB: web-server and PHP limits, reverse-proxy timeouts, bandwidth, disk, and whether the file is streamed or loaded entirely into RAM.
Can I use it commercially?
Yes. Dummy files from DummyFiles.dev are free to use in commercial projects, tests and CI. They contain no third-party copyrighted content.
How was it generated?
The file is generated on download with a target size of 3 GB. No account is required.
Are larger files available?
Yes. The next size is 4 GB. The largest BIN file here is 5 GB.

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