UTM Builder

Compose a tracked campaign URL with UTM parameters. Free, runs entirely in your browser — no signup, and nothing you paste in is uploaded.

The five parameters split into three that matter and two that refine. Source is where the click came from, medium is the kind of channel, and campaign is the thing you are measuring; term and content exist for keyword and A/B variants. Analytics tools treat these as opaque strings, which is the whole problem.

Because they are opaque, `Facebook`, `facebook` and `fb` are three different sources forever, splitting one campaign across three rows in a report nobody can reconcile later. Pick lowercase, pick one word per channel, write it down, and use the same spellings every time — consistency is worth more than any individual tag.