A tiny, dependency-free HTML page that generates a dummy file of an exact
size (bin / txt / csv / json) entirely client-side. No upload, no backend,
no build step — open index.html in any browser.
Useful for testing upload limits, storage quotas, API payload limits, or email attachment caps.
Just open index.html, pick a format and a size, and click generate.
Made by ByteRivet — a full browser-based toolkit for test files, PDF tools, and image conversion, in 19+ formats and 5 languages.