Upload limit checker

Know before you upload, not after it fails

Almost every form, email service and upload tool has a size limit per file, and finding out you are over it usually means waiting for an upload to fail, or a vague error message, after the fact. Checking file sizes against the limit before you try saves that wasted wait, especially for large files or a slow connection.

How to use it

Type the limit stated by the service you are uploading to, for example 25 MB for a typical email attachment or the number given in a form's instructions, and drop your files. Each one is marked as within the limit or over it, and the total count and combined size are shown so you know at a glance how many files need to be resized, compressed or split before they will go through.

Common limits

Email attachments are typically capped around 25 MB depending on the provider, many web forms use 5 to 10 MB per file, and some services allow several gigabytes for video or large documents. The presets cover the most common values, or you can type the exact number given by whatever you are uploading to.

What to do with an oversized file

For images, the image size reducer shrinks a photo to a target size. For PDFs, the PDF size reducer does the same. For anything else, compressing into a ZIP with the ZIP creator or splitting it with the file splitter are the usual options.

Limits

This checks the limit per individual file; some services also cap the total size of everything uploaded together, which you can check with the total file size calculator. Nothing is uploaded here: files are only read locally to measure their size.