How to use UTM URL Builder
- Enter or paste your URL into the input field to begin.
- Set Base URL, Campaign source, Campaign medium so the output fits your use case.
- UTM URL Builder updates the output automatically as you type.
- Use Copy to keep or reuse the result.
About this tool
There is no server behind UTM URL Builder. UTM URL Builder assembles your URL with its parameters locally and keeps it shareable.
Reserved characters are escaped to standard rules so the link works everywhere. Nothing you enter is uploaded, and it keeps working offline once the page has loaded.
Frequently asked questions
What does UTM URL Builder do?
UTM URL Builder lets you process your input right in the browser using the Base URL, Campaign source controls, with the result shown instantly and nothing uploaded.
Is UTM URL Builder free to use?
Yes — UTM URL Builder is completely free, with no usage limits.
Where is my data processed by UTM URL Builder?
Entirely in your browser — UTM URL Builder keeps your data on your own machine and sends nothing anywhere.
Does UTM URL Builder encode reserved characters correctly?
Yes. UTM URL Builder follows standard percent-encoding rules in your browser so links stay valid.
Can I use UTM URL Builder without a connection?
Yes — after the first load UTM URL Builder runs entirely offline.