Marketing & Social · 100% Free · No Signup

UTM Builder

Untagged links are invisible in analytics — traffic lands in 'direct' and your campaign learnings evaporate. This UTM builder assembles campaign URLs with proper encoding and parameter order, so every newsletter, social post, and partnership is attributable.

Destination URL

utm_source

utm_medium

utm_campaign

utm_term (optional)

utm_content (optional)

Your campaign URL

— fill in the fields above —

Adopt a naming convention before you scale: lowercase everything, hyphens not spaces, consistent source/medium taxonomy (newsletter/email, x/social). Consistency is what makes reports readable a year later.

How to Use the UTM Builder

1Paste the destination URL.
2Fill utm_source (where), utm_medium (how), utm_campaign (why).
3Optionally add term and content for ad/variant detail.
4Copy the final URL — test it once before mass sending.

Frequently Asked Questions

What do source, medium, and campaign mean?

source = the referrer (newsletter, x, partner-site); medium = the channel type (email, social, cpc); campaign = the initiative (spring_launch). GA4 groups traffic by these exact values.

Should UTM values be lowercase?

Yes — analytics tools are case-sensitive, so 'Email' and 'email' split into two rows. Lowercase everything, always.

Should I use UTMs on internal links?

Never — internal UTMs reset the visitor's session and misattribute the original source. Use them only on links from external properties into your site.

Related Free Tools

CTR Calculator

Clicks ÷ impressions with context benchmarks.

Conversion Rate Calculator

CVR plus revenue-per-visitor in one view.

Email Marketing ROI Calculator

From list size to projected revenue and ROI.

Built by GuestPostOn — the free guest post marketplace with 1,000+ verified sites, full SEO metrics, and transparent pricing. Browse verified guest post sites →