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Free UTM Builder — tag every link the right way

Build clean, GA4-ready campaign URLs in seconds with our free UTM builder. Add source, medium and campaign, save your presets, and copy perfectly tagged tracking links — so you finally know which channel drives results.

Updated August 2026Built & reviewed by Devlet's marketing team

UTM parameters built correctly

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UTM Campaign URL Builder

Website URL *

Campaign source * (utm_source)

Campaign medium * (utm_medium)

Campaign name * (utm_campaign)

Campaign term (utm_term — optional)

Campaign content (utm_content — optional)

Quick presets

Force lowercase (recommended — GA4 is case-sensitive)

Your tagged campaign URL

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✓ Copied!

Saved campaigns

Nothing saved yet — build a URL and hit "Save campaign".

Key takeaways

A UTM builder adds tracking tags to a link so Google Analytics knows exactly where each visitor came from.
Three parameters are required: utm_source, utm_medium and utm_campaign.
Always use lowercase — GA4 is case-sensitive, so "Facebook" and "facebook" split your data.
Never put UTM tags on internal links — it overwrites the real traffic source.

Trusted references GA4 — Custom campaigns ↗ Google Campaign URL Builder ↗ UTM parameter reference ↗ Google Analytics docs ↗

How it works

How the UTM builder works

Turn any link into a tracked campaign URL in four steps — and see exactly which source, medium and campaign drove every click in Google Analytics.

Paste your URL

Drop in the landing page you're linking to — a product page, blog post, or homepage.

Add your tags

Fill in source, medium and campaign (or tap a preset). The tagged link assembles live as you type.

Copy the link

One click copies a clean, lowercase, GA4-ready URL. Grab the QR code for print and offline campaigns.

Track in GA4

Your tagged traffic shows up under Traffic acquisition, split by exactly the source, medium and campaign you set.

UTM link generator

What is a UTM builder (and why you need one)?

A UTM builder — also called a UTM link generator or campaign URL builder — adds small tracking tags to the end of a link so analytics tools know exactly where a visitor came from. Without them, most of your traffic gets lumped into vague buckets like "direct" or "referral", and you can't prove which campaign actually worked.

UTM stands for Urchin Tracking Module. When someone clicks a tagged link, Google Analytics reads those tags and files the visit under the precise source, medium and campaign you defined — turning guesswork into clean, comparable data.

Know which channel, ad, or email drove each conversion
Compare campaigns fairly, side by side, in GA4
Stop losing paid and social traffic to the "direct" bucket

Google analytics utm builder

The 5 UTM parameters explained

Our Google Analytics UTM builder supports all five standard parameters. Three are required for clean tracking; two are optional but powerful.

utm_source — where the traffic comes from (google, facebook, newsletter)
utm_medium — the type of channel (cpc, email, paid-social)
utm_campaign — the specific promotion (spring_sale_2026)
utm_term — the paid keyword (optional, for search ads)
utm_content — which link or creative (optional, for A/B tests)

Keep your values consistent and lowercase — GA4 treats "Facebook" and "facebook" as two different sources, which quietly splits your data. Our UTM code generator enforces that for you automatically.

UTM naming best practices

Casealways lowercase

Spacesuse _ or +

Sourcethe platform

Mediumthe channel type

Campaignone clear name

Internal linksnever tag

Campaign url builder

UTM best practices (and mistakes to avoid)

A campaign URL builder only helps if you use it consistently. The single biggest mistake is inconsistent naming — "FB", "fb", "facebook" and "Facebook" become four separate sources in your reports, making every campaign impossible to compare.

The second biggest mistake is tagging internal links — links between pages on your own site. Doing so resets the visitor's session and overwrites the real source that brought them in, corrupting your attribution. Only ever tag links coming from outside your site.

Pick a naming convention once and document it for your team
Use the same source/medium values every time (presets help)
Never put UTMs on internal navigation links
Keep campaign names human-readable so reports make sense later
Save your links so you're not rebuilding the same URL twice

FAQ

UTM builder — frequently asked questions

Everything you need to know about UTM parameters, campaign tracking, and Google Analytics.

What is a UTM builder?

A UTM builder is a free tool that adds tracking parameters (utm_source, utm_medium, utm_campaign and more) to the end of a URL. When someone clicks the tagged link, Google Analytics uses those parameters to record exactly where the visit came from, so you can measure which campaigns drive traffic and conversions.

What are the 5 UTM parameters?

The five UTM parameters are utm_source (where traffic comes from), utm_medium (the channel type), utm_campaign (the specific promotion), utm_term (the paid keyword, optional), and utm_content (which link or creative, optional). Source, medium and campaign are required for clean tracking.

Should UTM parameters be lowercase?

Yes. Google Analytics is case-sensitive, so "Facebook" and "facebook" are counted as two different sources. Always use lowercase for consistent reporting. Our UTM builder can force lowercase automatically with the toggle above.

Can I use UTM links on internal pages?

No — never add UTM parameters to links between pages on your own website. Doing so starts a new session and overwrites the original traffic source, corrupting your attribution data. Only tag links coming from outside your site, such as ads, emails and social posts.

Do UTM parameters affect SEO?

UTM parameters don't directly hurt SEO, but they should only be used on campaign links, not on your normal internal linking or canonical URLs. Google generally handles UTM-tagged URLs well, but keeping them off internal links avoids any duplicate-URL confusion.

Is this UTM builder free?

Yes — completely free, with no signup and no limits. It runs entirely in your browser, so none of your URLs or campaign data are stored or sent anywhere.

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