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Sample File Library — 15 Ready-Made Files Per Set

Download a ready-made ladder of 15 sample files: size steps, page counts, aspect ratios, durations or row counts.

The sample file library produces a complete set of 15 ready-made test files in one click. Choose a ladder — file sizes from 1 KB to 50 MB, PDF page counts from 1 to 1,000, image aspect ratios and resolutions up to 8K, audio durations from one second to thirty minutes, or data files from 10 to 100,000 rows.

Runs in your browser
Files per set
15, each named after the variable it changes
Sets
Ten — file size, PDF size, PDF pages, image size, image ratio, image resolution, archive size, audio duration, audio quality and data rows
Range
1 KB to 50 MB, 1 to 1,000 pages, 16×16 to 7680×4320, 1 second to 30 minutes, 10 to 100,000 rows
Privacy
Runs entirely in your browser — nothing is uploaded
Cost
Free, unlimited, no sign-up

Frequently asked questions

Why a ladder rather than one file?

Most size-related bugs only appear at a threshold — an upload cap, a memory limit, a pagination boundary. A ladder crosses every plausible threshold in one pass, so you find the break point instead of guessing at it.

Can I download them all at once?

Yes. Every set offers a single ZIP containing all 15 files, or you can download any individual step from the list.

Why are some steps skipped?

The upper steps of a ladder are large enough to be slow to build in a browser tab. The size limit skips them by default, and the result always reports how many were skipped rather than quietly dropping them.

How to use the sample file library

  1. 1Choose the set.
  2. 2Choose the file format.
  3. 3Choose the data format.
  4. 4Choose the skip files larger than.
  5. 5Enter or paste your seed.
  6. 6Press Run, then download the result when it is ready.

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Put the working sample file library on your own site. It runs in your visitors' browsers exactly as it does here — free, no account, nothing uploaded.

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