UTM Builder

UTM Builder adds campaign parameters — utm_source, utm_medium, utm_campaign, utm_term and utm_content — to any URL so the visits it brings are labelled in your analytics. It keeps existing query parameters and #fragments and percent-encodes every value.

Untagged links from newsletters, ads and social posts often show up as direct or referral traffic, hiding which campaign worked. Consistent UTM tags make campaign reporting clear, and building them with a tool avoids broken URLs from manual editing.

1. Paste the destination website URL.
2. Enter utm_source (required), then utm_medium and utm_campaign (recommended).
3. Click a medium preset such as email or social, or type your own.
4. Add utm_term or utm_content if you need them.
5. Check the final URL and the parameter breakdown.
6. Copy the URL, or copy it as an HTML link.

• All five standard UTM parameters
• Keeps existing query parameters and #fragments
• Percent-encodes values safely
• Medium presets: email, social, cpc, affiliate, banner
• Live final URL with a readable parameter breakdown
• Copy URL or a ready-made HTML link

• Use lowercase values and a consistent naming scheme across campaigns.
• Keep source, medium and campaign filled in for clear reporting.
• Do not use UTM tags on links between pages of your own site.
• Test the final URL once to confirm the page loads correctly.
• Record the tags you use in a shared sheet so your team stays consistent.