Free UTM Builder
If you can't measure a campaign, you can't improve it. NToolHub's free UTM Builder tags your URLs with properly encoded utm_source, medium, campaign, term and content parameters — handling existing query strings correctly. Marketers use it to make every newsletter, ad and social post trackable in analytics.
How to Use the UTM Builder
- Paste the destination URL of your campaign page.
- Fill in source, medium and campaign (required).
- Optionally add term and content to split-test creatives.
- Click Build Campaign URL and copy the tagged link.
Features
Enter the destination URL plus the five standard UTM parameters (source/medium/campaign required with validation), and get a correctly encoded campaign URL that preserves existing query parameters — with one-click copy.
Benefits & Use Cases
Clean UTM tagging attributes traffic, conversions and revenue to exact campaigns in Google Analytics — ending the 'where did these visitors come from?' guessing and proving marketing ROI.
Tips
Use lowercase with underscores (spring_sale, not Spring Sale), keep naming conventions documented and consistent, never tag internal links (it breaks session attribution), and always test the final URL.
Frequently Asked Questions
What are UTM parameters?
Tags appended to URLs (utm_source, utm_medium, utm_campaign, etc.) that tell analytics tools exactly which campaign, channel and creative drove each visit.
Which UTM parameters are required?
Technically none, but source, medium and campaign together make reports meaningful. Term and content are for paid keywords and A/B creative variants.
Should I use UTMs on internal links?
No — tagging internal links overwrites the original traffic source in analytics, corrupting your attribution data. UTMs are for external campaigns only.
Do UTM parameters hurt SEO?
No. Google ignores utm_* parameters for indexing, and canonical tags should point to the clean URL anyway. They're purely for analytics.
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