File Size Estimator
Check your file sizes against common submission limits without uploading. 100% private, browser-side processing.
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Drag and drop your file here
Files are processed entirely in your browser. Your data never leaves your computer.
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Why File Size Matters
Many submission portals, email providers, and job application systems have strict file size limits. Checking your files before submission prevents upload failures, timeout errors, and wasted time. Our tool checks file metadata locally in your browser — your file is never uploaded anywhere.