Fieldwork UTM: Link Builder & Naming Rules

Build UTM links from any tab and catch naming mistakes (case, spaces, typos) before they split your GA4 reports.

GA4 counts "facebook", "Facebook" and "facebook.com" as three different sources. One stray capital letter or space and your campaign report is split into pieces you have to stitch back together. Fieldwork UTM builds tracking links from the tab you're on and checks every value against one naming convention before you copy it. HOW IT WORKS - Click the toolbar icon (or press Alt+Shift+U). The current page is already filled in. - Pick a preset or type source, medium and campaign. - The color-coded preview shows exactly what the final link will look like. - Fieldwork flags capital letters, spaces, special characters, misspelled sources ("fb", "insta", "adwords") and mediums GA4 won't recognize. One click applies the fix. - Copy. The link is saved to your history. Paste a link that already has UTM tags and Fieldwork pulls them into the form so you can edit them. Other query parameters and #anchors are kept. FREE - Tag the current tab, with a color-coded preview - Built-in GA4 checks and one-click fixes - 3 saved presets - Your last 20 links FIELDWORK PRO ($5/month or $39/year) - Your own naming rules: force lowercase, choose the space separator, allowed sources and mediums, a spelling-fix list, and a campaign-name pattern (for example 2026-q4-webinar) - Unlimited presets - Bulk tagging: paste up to 500 links, tag them all at once, export CSV - Full history (5,000 links), searchable, with CSV export - Share presets and naming rules with your team as a single file PRIVATE BY DESIGN - No account needed for the free plan - Your presets, rules and history are stored only in your browser - Fieldwork never reads the content of the pages you visit. It reads the current tab's address only when you open it. - No analytics, no tracking, no ads - Payments are handled by ExtensionPay and Stripe. Fieldwork never sees your card. Built for marketers, agencies, growth teams and freelancers who are tired of cleaning up Unassigned and duplicate rows in GA4.