Contact TrueFileSize
Use this page when a sample file, metadata field, download URL, or developer guide needs correction. Include enough detail for us to reproduce the issue and update the catalog safely.
Incorrect file size or metadata
Send the page URL, filename, expected bytes, observed bytes, and the tool you used to measure it.
Broken download or CDN issue
Send the download URL, status code, country or region, and whether the issue happens in curl as well as a browser.
License or reuse question
Most downloadable sample files are CC0 / Public Domain, but you can ask about a specific file or guide.
Guide correction
Send the article URL, the claim that looks wrong, and a reproducible example or current source.
Before reporting a file issue
Check the file’s visible metadata panel first. It lists the filename, exact byte size, MIME type, license, and stable download URL. For background on how files are created and measured, read how we generate files.
You can also review the editorial policy and license page for the standards behind published file and content claims.