URL Parser and Comparator

Why Use It

See parameter names, values, and repeated keys side by side so small differences are easy to spot.

Everything runs locally in your browser, which is useful when you are comparing internal links or sensitive test URLs.

The page explains what the tool does in plain language, which helps both people and search engines understand the purpose.

Compare analytics or marketing URLs with different tracking parameters.
Check whether two links resolve to the same endpoint with only query string changes.
Verify URL-encoded values after copying links from logs, spreadsheets, or email clients.
Review parameter changes during QA, debugging, or redirect testing.

Compare two campaign URLs that differ only by utm_source, utm_medium, or utm_campaign.

Check whether two product URLs have the same core path but different filter or sort parameters.

Spot when one URL has a missing parameter, a changed value, or an unexpected repeated key.

What does the URL Comparator compare?

It compares two URLs side by side and shows differences in query parameter names and values.

Does it send my URLs to a server?

No. The comparison happens entirely in your browser.

Can I compare encoded URLs?

Yes. The tool decodes URL-encoded values when possible so differences are easier to read.