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5 MB test file
5,000,000 bytes · plain text
Transfer laboratory
Files with predictable sizes
Use these generated text files to test downloads, timeouts, progress indicators and preservation workflows. Sizes use decimal megabytes: 1 MB equals 1,000,000 bytes.
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10 MB test file
10,000,000 bytes · plain text
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50 MB test file
50,000,000 bytes · plain text
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100 MB test file
100,000,000 bytes · plain text
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500 MB test file
500,000,000 bytes · plain text
Known size
The exact byte count helps test limits, truncation and transfer completeness.
Deterministic content
Every deployment generates the same repeated text, enabling stable hash comparison.
Large-file caution
The 500 MB file may consume significant bandwidth and should be used intentionally.