onul.works

UTM Builder

Build UTM tracking URLs by combining source, medium, campaign, term, and content parameters.

⌘ Runs in browser ◴ No data stored ⌁ Free

Concept

UTM URLs separate campaign traffic at the link level

Add campaign metadata to a landing URL so source, medium, campaign, content, and term traffic can be measured consistently.

Use this tool before publishing links for ads, newsletters, and social posts to distinguish campaign paths with source/medium plus campaign identifiers.

A practical format is: append utm_source, utm_medium, utm_campaign, utm_content, and utm_term to the same destination URL so each variation has a stable tracking key.

The builder keeps generated parameters URL-encoded and safe for transport, then you should confirm ingestion in GA4 or your analytics pipeline.

When to use it

Generate a dedicated campaign link for each channel, ad unit, creative, and keyword by filling source, medium, campaign, content, and term.

Naming consistency and encoding

Keep naming rules consistent across team members (for example lowercase + snake_case) and rely on URL encoding for spaces, symbols, and multilingual characters.

Validation checkpoint

Do not include personal data in UTM fields, and verify that utm_* appears in GA4 or linked analytics data after rollout.

This tool only creates tracking links; the final quality check is whether GA4/analytics confirms the expected traffic attribution.

UTM inputs
Tracking URL

How to use

  1. 1 Enter the base URL and add utm_source or utm_medium.
  2. 2 Add campaign, term, or content values when needed.
  3. 3 Review the final UTM URL and parameter preview, then copy it.

Common use cases

  • UTM tracking URLs for ad campaigns
  • UTM tags for newsletter links
  • Traffic links for social posts

Frequently asked questions

Which UTM values can I enter?

You can enter a base URL plus utm_source, utm_medium, utm_campaign, utm_term, and utm_content. The medium can be selected from the list or entered manually to build custom UTM tags.

Can I copy the generated URL?

Yes. You can copy the result URL and check the applied UTM parameters in the preview table below.

Does this tool collect analytics data?

No. It only appends UTM parameters to a URL. Campaign measurement depends on your connected analytics tool and site setup.

Related workflow

UTM BuilderAdd tracking parameters to the landing URL so campaign traffic can be separated later. → AI SlugIf the landing page title needs a URL path, use the server API to create an English slug candidate. → Hreflang GeneratorFor multilingual campaign pages, align the alternate relationships between each landing URL.