Archives

BIN test files, any size.

Set a size and generate a structurally valid BIN immediately. Nothing is uploaded and nothing is stored.

0bytes
Exact size

BIN, built to spec.

Each file is raw bytes with no container at all. The size you ask for is reached with the entire file is pseudo-random printable bytes, so the result opens in hex editors like HxD or xxd, and Python's open() in binary mode. Most people generate these for measuring throughput and testing hard byte limits.

Common sizes

Pick a size to jump straight to it, or set your own on the caliper above.

1 KB BIN

1,024 bytes

5 KB BIN

5,120 bytes

10 KB BIN

10,240 bytes

50 KB BIN

51,200 bytes

100 KB BIN

102,400 bytes

500 KB BIN

512,000 bytes

1 MB BIN

1,048,576 bytes

2 MB BIN

2,097,152 bytes

3 MB BIN

3,145,728 bytes

5 MB BIN

5,242,880 bytes

10 MB BIN

10,485,760 bytes

15 MB BIN

15,728,640 bytes

20 MB BIN

20,971,520 bytes

25 MB BIN

26,214,400 bytes

50 MB BIN

52,428,800 bytes

100 MB BIN

104,857,600 bytes

200 MB BIN

209,715,200 bytes

500 MB BIN

524,288,000 bytes

1 GB BIN

1,073,741,824 bytes

2 GB BIN

2,147,483,648 bytes

Questions.

How small can a BIN file be?

About 1 byte. Below that the format cannot carry its mandatory structure, let alone padding.

Will the file open normally?

Yes — it opens in hex editors like HxD or xxd, and Python's open() in binary mode, because the padding lives in the entire file is pseudo-random printable bytes.

Can I ask for an unusual size?

Any byte count above the minimum works, including values like 3,145,728 or 27.5 MB. Drag the caliper or type the number.

Noticed an issue with this test file? Report an issue →