UTM Campaign URL Builder

Why Use UTM Parameters?

UTM parameters let analytics tools like Google Analytics attribute traffic to the exact campaign, channel, and content variant that drove it. A single typo or an unencoded space in a hand-built URL can silently break that attribution — this builder constructs the URL correctly every time.

Features

  • All five standard parameters — source, medium, campaign, term, and content.
  • Correct encoding — built on the URL/URLSearchParams APIs, so spaces, ampersands, and other special characters are always encoded properly.
  • Base URL validation — flags an invalid or missing base URL before you copy a broken link.
  • Preserves existing query parameters — UTM parameters are added alongside any query string already on your URL.

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