Email Attachment Checker
Quickly verify if your file size is compatible with common email providers like Gmail, Outlook, and Yahoo.
cloud_upload
Drag and drop your file here
Files are processed entirely in your browser for maximum privacy. Your data never leaves your computer.
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Why do email attachments have limits?
Email servers enforce attachment size limits to prevent system overload and ensure fast message delivery. Most providers like Gmail and Yahoo settle on a 25MB limit, while Outlook desktop caps at 20MB.
Privacy-First Browser Checking
Unlike many online tools, we use client-side JavaScript to inspect your file size and type. Your file is never uploaded to our servers. We simply read the metadata provided by your operating system.