Web Toolbox

People checking uploads before sending them

File Type and Size Checker

Check file name, extension, browser MIME type, size, and last modified date.

Instructions: Enter your values, review the instant result, then sign up to save the tool.

file details

Enter values to see the result.

Instructions

  1. Enter the numbers or text for your situation.
  2. The result updates instantly in your browser.
  3. Sign up to save this tool to your favorites.

Good for

File Checker

Use this tool when you need a quick answer for file type and size checker. Enter your details, compare the result, and adjust the inputs until the numbers match your situation.

Use it well

  • MIME type is browser-reported.
  • Some upload limits use MB while storage uses MiB.
  • Rename files clearly before sending.

Check a file's type and size before uploading it to school, work, email, forms, or social platforms. The file stays in your browser. Helpful for file type and size checker, file checker, online file checker, tech browser utility, quick estimate, planning tool, browser tool, and practical everyday comparisons.