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Dummy file

Download 20 MB Dummy BIN

Download a 20 MB dummy file. Test file for upload, storage and API tests — fixed size, any format.

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File information

Size
20 MB (20,971,520 B)
MIME
application/octet-stream
Extension
.bin
Checksum
b5ca80ff376a0c79 (Generation ID)
Created
on demand

How to use this file

Download the 20 MB BIN and follow the same upload path as your users. Check the file type, extension .bin and stored size.

Fixed-size test files are more repeatable than random files from your computer: every run is 20 MB, every environment matches.

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

FAQ

What is this file?
A 20 MB dummy BIN file (application/octet-stream) for software tests. Extension: .bin.
How can I use it?
Use it to verify upload limits, timeouts, progress bars and storage quotas around 20 MB.
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 20 MB. No account is required.
Are larger files available?
Yes. The next size is 25 MB. The largest BIN file here is 5 GB.

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