Why UTM parameters matter
UTM parameters let analytics tools like Google Analytics attribute traffic to specific campaigns, sources, and channels. Consistent UTM tagging is essential for measuring marketing ROI accurately.
UTM Builder
Enter a base URL and campaign details to instantly build a UTM-tagged tracking link.
How it works
- 1
Fill in the form fields the tool shows.
- 2
Change modes or toggles if available.
- 3
Copy the generated output when it looks right (often updates live).
Why use this tool
- Runs entirely in your browser — nothing is uploaded to a server.
- 100% free, no sign-up, no limits.
- Works in any modern browser — no app install, no extension, no account.
How to use UTM Builder
Complete the fields in UTM Builder. Output is produced in your browser from those inputs — copy it when ready.
Tips for better results
Empty optional fields if you want a minimal result. Invalid combinations should surface an error message.
Privacy and offline-friendly processing
Whenever possible, UTM Builder processes your data locally with JavaScript in this page. That means drafts, secrets, and unfinished work stay on your device by default. Prefer this workflow when you do not want to upload sensitive text, tokens, passwords, or files to a third-party service.
Frequently asked questions
What are utm_source and utm_medium for?
utm_source identifies where the traffic comes from (e.g. "newsletter"), while utm_medium identifies the marketing medium (e.g. "email").
Do I need to add https:// to the base URL?
No, the tool automatically adds https:// if you omit the protocol.
Is my data uploaded when I use this tool?
For most FlyUtils tools, no. Processing happens in your browser with JavaScript. If a tool ever needs a server, that will be stated clearly on the page.
Is UTM Builder free to use?
Yes. UTM Builder is free, with no sign-up and no artificial usage caps for normal personal and work use.
Does UTM Builder work on mobile?
Yes. The page is mobile-first, so you can paste input, tweak options, and copy results from a phone or tablet.