What are UTM parameters used for?

UTM (Urchin Tracking Module) parameters are query string tags — utm_source, utm_medium, utm_campaign, utm_term, and utm_content — appended to a URL so analytics platforms like Google Analytics can identify exactly which campaign, channel, and creative drove a visit.

Which UTM parameters are required?

Google Analytics requires utm_source, utm_medium, and utm_campaign to register a session as campaign traffic. utm_term and utm_content are optional and typically used for paid search keywords and A/B testing different ad creatives or links respectively.

What's the difference between utm_source and utm_medium?

utm_source identifies where the traffic comes from (e.g. 'google', 'newsletter', 'facebook'), while utm_medium identifies the marketing channel type (e.g. 'cpc', 'email', 'social'). Together they answer 'where' and 'how' a visitor arrived.

Does this tool work if my URL already has query parameters?

Yes. The tool parses your base URL and appends the UTM parameters using the standard '&' separator if a '?' already exists, so links that already include parameters are handled correctly without breaking the existing query string.

Why does the tool warn me about spaces in campaign fields?

A raw space in a URL is invalid and can break links when shared in some contexts. This tool automatically URL-encodes spaces and other special characters into a valid format, and shows a warning so you're aware your input contained characters that needed encoding.

What are the quick-fill preset buttons for?

The preset buttons fill in commonly used Source/Medium combinations — like Google/cpc for paid search or Newsletter/email for email campaigns — so you don't have to retype the same values for every link in a recurring campaign type.

Is there a standard naming convention for UTM values?

There's no enforced standard, but best practice is to keep values lowercase and consistent across your team, since Google Analytics treats UTM values as case-sensitive and will otherwise split one channel's traffic into multiple rows in your reports.

Does this tool send my URLs to a server?

No. The entire URL is built in your browser using the JavaScript URL API. Nothing is transmitted to any server — you can verify this in your browser's Network tab.

Can I use UTM parameters on any website's links, or just my own?

UTM parameters can be added to a link pointing to any website — most commonly your own site or landing page — because the receiving analytics tool only reads and records them; it doesn't require the destination site's cooperation.

UTM Builder — Generate UTM-Tagged Campaign URLs

Our UTM Builder generates properly formatted, URL-encoded campaign tracking links by appending utm_source, utm_medium, utm_campaign, utm_term, and utm_content parameters to any base URL. One-click presets for common source/medium pairs (Google/cpc, Facebook/social, Newsletter/email) speed up repetitive campaign setup, and the tool warns about unencoded spaces before you ship a broken link. Everything runs client-side — no data is sent anywhere.

Base URL

Quick-fill presets

Campaign Source (utm_source)

Campaign Medium (utm_medium)

Campaign Name (utm_campaign)

Campaign Term (utm_term)

Campaign Content (utm_content)

Generated URL

Enter a base URL to generate your UTM-tagged link.

How to Use the UTM Builder — Create Trackable Campaign URLs

1
Paste the destination URL you want to track into the base URL field.
2
Fill in Campaign Source, Medium, Campaign, Term, and Content — or click a preset button to auto-fill Source and Medium.
3
Watch the tagged URL build live below the form as you type.
4
Click 'Copy' to copy the finished UTM URL to your clipboard for use in ads, emails, or social posts.

Why Use UTM Builder — Create Trackable Campaign URLs?

UTM parameters are the standard way Google Analytics and most other analytics platforms attribute traffic to specific marketing campaigns — without them, all your traffic from a Facebook ad, a newsletter, or a partner site looks identical to a plain referral. Manually appending five query parameters to a URL is error-prone: a missing '?' versus '&', an unencoded space, or an inconsistent naming convention can silently break attribution for an entire campaign. This tool removes that risk by building the query string programmatically, merging cleanly with any existing query parameters on the destination URL, and auto-encoding special characters so the link always resolves and tracks correctly.

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