UTM Builder

Q: What are UTM parameters?

UTM parameters are tags you add to a URL's query string (utm_source, utm_medium, utm_campaign, utm_term, utm_content, utm_id) so analytics tools can attribute a visit to a specific marketing campaign, channel, or ad.

Q: Which UTM parameters are required?

None are strictly required, but Google Analytics treats utm_source, utm_medium, and utm_campaign as the core three — this tool warns when any of them are left empty so your reports stay meaningful.

Q: Does it keep the query parameters my URL already has?

Yes. Existing query parameters are preserved, and if your URL already contains a UTM key it is overwritten with the value you enter. Values are percent-encoded so the URL stays valid.

Q: Is my URL sent anywhere?

No. The URL is assembled locally in your browser with the standard URL API — nothing is uploaded or logged.

Fill in a destination URL and the campaign parameters you want to track. The tagged URL is built instantly and entirely in your browser — nothing is sent to a server.

Website URL

The full destination URL, including https://.

Campaign source (utm_source)

Where the traffic comes from — e.g. google, newsletter, twitter.

Campaign medium (utm_medium)

The marketing medium — e.g. email, cpc, social, referral.

Campaign name (utm_campaign)

The specific promotion or campaign — e.g. spring_sale.

Campaign term (utm_term)

Optional. Paid-search keywords for this campaign.

Campaign content (utm_content)

Optional. Distinguishes ads or links pointing to the same URL.

Campaign ID (utm_id)

Optional. The campaign ID used by GA4 campaign reports.

Cannot build the URL yet

Enter a base URL to tag.

UTM Builder

FAQ

What are UTM parameters?

Which UTM parameters are required?

Does it keep the query parameters my URL already has?

Is my URL sent anywhere?

See also