Skip to main content

Chrome Extension Size Checker

Verify your extension ZIP is under the Chrome Web Store's 10MB limit before submitting.

The Chrome Web Store enforces a strict 10MB size limit on extension ZIP files. If your package exceeds this, your upload will be rejected — often without a clear error message. This tool lets you check your extension size locally before you waste time submitting.

Your file is analyzed entirely in your browser using the File API. No data is uploaded to any server. Just drop your ZIP and get an instant pass/fail result.

Drop your extension ZIP here

or click to browse files

Accepts .zip files only

Frequently Asked Questions

Click on a question to view the answer.

NEED SOMETHING CUSTOM?

Don't see the tool you need? We'll build it for you.

Stop renting your workflow. We build custom browser extensions that automate your specific manual processes, data extraction, and repetitive tasks.

Get a Quote

Fixed price. 100% IP Ownership.