Free tool

UTM builder

Paste a URL, fill in your campaign details, copy a clean tracking link. Handles existing query strings automatically.

Build your link

Required fields are marked with *.

Your tracking URL

Fill in URL, source, medium and campaign to generate your tracking URL.
How it works
  • If your URL already has a ?, parameters are joined with &.
  • If it doesn't, they're added after a fresh ?.
  • Values are URL-encoded automatically, so spaces, punctuation and emoji are all safe.
  • Fragments (#section) are kept at the end where they belong.
Inside Molecule

One clean link is a start. Now audit the other 4,712.

A single tracking URL is easy. The hard part is keeping every paid URL across every ad channel clean without a spreadsheet. The Molecule UTM health check does it for you. And every ad launched from LaunchPad is tracked from the start.

  • Per-platform health score. See exactly which channels are leaking attribution, at a glance.
  • Templates that fit each platform. Google's {campaignid}, Meta's {{campaign.name}}, TikTok's __CAMPAIGN_NAME__. Copy, paste, done.
  • Drill into every campaign. Filter by platform, account, valid or invalid, and fix the offenders in minutes.
Run a free UTM health check →

Included from Starter. 14 days free, no card.

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