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Free UTM Link Builder
Build clean, GA4-ready UTM tracking links in seconds. Free, no sign-up, and it runs entirely in your browser.
Where the link should send people.
e.g. facebook, newsletter
e.g. cpc, email, social
e.g. spring_sale_2026
Paid keyword
Ad or link variant
Your link
Fill in the fields above and your link appears here.
New to UTMs? Read our practical guide to UTM parameters for agencies.
Frequently asked questions
- What is a UTM link?
- A normal URL with tracking tags (utm_source, utm_medium, utm_campaign and so on) added to the end. Analytics tools such as Google Analytics 4 read the tags to record where each visit came from.
- Which UTM parameters are required?
- Source, medium and campaign. Term and content are optional: use them to tell paid keywords or ad variants apart.
- Why should UTM values be lowercase?
- GA4 treats values as case-sensitive, so Facebook and facebook show up as two different sources. Keeping everything lowercase with underscores keeps reports clean.
- Should I add UTM parameters to links within my own site?
- No. Tagging internal links starts a new session and overwrites the visitor's original source. Only tag links that point to your site from somewhere else.