UTM Builder & Checker for GA4 – The Growth Folks®

Build and check UTM links for GA4. See the channel before you share. Page and email checker, WhatsApp links, bulk and QR.

Build UTM links that Google Analytics 4 understands, and check the ones you already have, before they go live. UTM Builder & Checker is a Chrome extension from The Growth Folks®, free to use with an optional Pro plan. It shows which GA4 channel each link will be reported under, and why, using Google's published default channel group rules. It also checks links against your team's naming convention. WHY IT EXISTS One wrong value breaks your reports, and nothing warns you. A source GA4 doesn't recognise turns paid social traffic into "Paid Other". A medium like "campaign" lands in "Unassigned". UTMs placed after a "#" never reach GA4 at all. This extension catches those mistakes and gives you the corrected link. BUILD • See the GA4 channel and the rule behind it as you type • One-click fixes for Unassigned, Paid Other and paid traffic counted as organic • Clean URLs: keeps your parameters and anchors, removes old click IDs and UTMs • Dynamic ad-platform macros are kept intact, never encoded • Copy as a full URL, parameters only, an ad-platform suffix, a spreadsheet row, Markdown or HTML • Built-in templates, saved presets and campaign-name formulas CHECK • This page: check every link on the open page and locate any of them with one click • Email drafts (Pro): check the links in a draft in your webmail or email marketing editor before you send. It reads links only when you click, and nothing leaves your browser • Paste: check a list of links or a whole email's HTML, then copy the corrected HTML • Finds missing UTMs, UTMs after #, a second "?", encoded macros, double encoding, case and spacing problems, duplicates, click IDs and naming-rule breaks • Critical, warning and pass levels; merge tags are marked as unverifiable rather than broken • Optional redirect check: see whether your UTMs survive a redirect WHATSAPP LINKS • Click-to-chat links with a pre-filled message • A tagged website link inside the message, because UTMs on the chat link itself never reach GA4 • QR codes for print, packaging and shop windows FOR TEAMS AND AGENCIES • Workspaces with approved sources and mediums, locked options, allowed domains and a campaign pattern • A shareable rules file so the whole team uses the same names. Teammates import it for free • Bulk link builder, CSV upload, UTM cleaner and an email HTML tagger • Optional short links with your own link-shortener API key, styled QR codes and webhooks • Searchable history with CSV export FREE AND PRO Free: building and checking links, the GA4 channel check, page and pasted-email checks, WhatsApp links, QR codes, one workspace and bulk runs of up to 10 links. Pro ($6 a month or $60 a year, 7-day free trial): unlimited client workspaces, exporting rules files and workspace codes, the admin lock, email draft checks, bulk runs of any size and webhooks. Buy on thegrowthfolks.com and the key activates itself, or paste it in Settings. No account needed. If you installed before Pro existed, Pro stays on until 31 January 2027. PRIVACY No account and no server. Your workspaces, rules and history stay in your browser. The extension makes a network request only when you ask it to: to your own link shortener, to the pages you check, or to your own webhook. With Pro, it also checks your licence key with our payment provider every few days. It contains no analytics or tracking. Made by The Growth Folks®. https://thegrowthfolks.com/tools/utm-builder/