Free UTM Link Builder

Using the utm link builder

Enter the destination URL and choose source, medium and campaign, with optional content and term fields. The builder lowercases values, replaces spaces and warns about common errors such as using a campaign name as the medium. Saved presets keep naming identical across your team, which is where most UTM tracking falls apart: one person types Facebook, another fb, and reports split into separate rows.

Agree a short naming convention first: standard sources, a fixed list of mediums that match GA4 channel groupings, and a campaign naming pattern with a date or product. Never put UTMs on internal links within your own site, since that overwrites the original source. Keep a log of links created for reference.

See the analytics glossary for definitions of each parameter.