Test files › Size ladder

Sample Size ladder test files

What is a size ladder?

A set of files at exact sizes, from 0 bytes to 250 MB, used to find where upload limits, timeouts and memory use break. Each size has a published SHA-256, and the file host supports HTTP Range requests for resumable-download tests.

Large test files (1 KB to 2 GB)Large file upload testing1 GB and 2 GB test filesDownload speed test filesRange requests and resumable downloads

12 free size ladder test files for QA and developers: 0b.bin, 100kb.bin, 100mb.bin, 10kb.bin and more. Each with a published SHA-256.

FileFormatSizeWhat it catches
0b.binBinary0 bytesEmpty file, exactly 0 bytes.
100kb.binBinary100 KBExactly 102,400 bytes of deterministic incompressible pseudo-random data.
100mb.binBinary100 MBExactly 104,857,600 bytes of deterministic incompressible pseudo-random data.
10kb.binBinary10.0 KBExactly 10,240 bytes of deterministic incompressible pseudo-random data.
10mb.binBinary10.0 MBExactly 10,485,760 bytes of deterministic incompressible pseudo-random data.
1b.binBinary1 bytesExactly 1 bytes of deterministic incompressible pseudo-random data.
1kb.binBinary1.0 KBExactly 1,024 bytes of deterministic incompressible pseudo-random data.
1mb.binBinary1.0 MBExactly 1,048,576 bytes of deterministic incompressible pseudo-random data.
250mb.binBinary250 MBExactly 262,144,000 bytes of deterministic incompressible pseudo-random data.
50mb.binBinary50.0 MBExactly 52,428,800 bytes of deterministic incompressible pseudo-random data.
512b.binBinary512 bytesExactly 512 bytes of deterministic incompressible pseudo-random data.
5mb.binBinary5.0 MBExactly 5,242,880 bytes of deterministic incompressible pseudo-random data.

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