UTM Campaign URL Builder
Tag every campaign link consistently so Google Analytics reports your traffic in the right channel.
- Your data never leaves your device
- 100% free
- No sign-up
- Works offline after first load
How to build a UTM link
- Enter your page URL, source, medium and campaign — or pick a preset.
- Check the warnings and the GA4 channel prediction.
- Copy the URL or download its QR code.
About UTM Builder
Build UTM-tagged campaign URLs for Google Analytics 4.
It works in your browser, so it is instant and private, and your settings are remembered on this device.
Good for
- Email newsletters and paid ads
- Social media posts and influencers
- Print materials with QR codes
Tip: Agree on a naming scheme (e.g. lowercase with dashes) with your team and save common URLs to the history.
Frequently asked questions
Which UTM parameters are required?
utm_source (where the traffic comes from, e.g. newsletter), utm_medium (the type, e.g. email) and utm_campaign (the campaign name). utm_term, utm_content and utm_id are optional.
Which channel will GA4 put my traffic in?
GA4 groups traffic by source and medium. The builder predicts the default channel — for example cpc from google becomes Paid Search, and email becomes Email. An Unassigned result means GA4 will not recognise the medium.
Should UTM values be lowercase?
Yes — GA4 is case-sensitive, so “Email” and “email” appear as two rows. Keep the lowercase option on.
Can I tag internal links?
No — UTM tags on links within your own site start a new session and overwrite the original source. Use them only on links from outside.
Are my links sent anywhere?
No. Links are built in your browser, and the ones you save are kept only in this browser.