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Free UTM Builder for GA4
The UTM Builder adds utm_source, utm_medium, utm_campaign and optional term, content and ID parameters to any URL so Google Analytics 4 attributes visits correctly. Presets cover Google Ads, Meta, newsletters, LinkedIn, WhatsApp and AI referrals, and values are cleaned to lowercase for consistent reports.
How to use it
How do you use the UTM Builder?
Enter your landing page
Paste the full URL people will visit.
Set source, medium and campaign
Use a preset or type your own consistent naming.
Copy and use the link
Share it in ads, emails, posts or messages, then compare campaigns in GA4.
FAQ
UTM Builder FAQs
What are UTM parameters?
UTM parameters are tags added to a URL that tell analytics tools where a visitor came from, such as the source, medium and campaign.
Which UTM fields are required?
For clean GA4 reporting, always set utm_source, utm_medium and utm_campaign.
Should UTM values be lowercase?
Yes. GA4 treats Facebook and facebook as different values, so consistent lowercase avoids split reports.
Can I use UTMs on internal links?
No. UTMs on internal links overwrite the original source and break attribution.
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