Build Google Analytics campaign URLs with utm_source, utm_medium, and utm_campaign tags — correctly encoded and existing query strings preserved.
Updated
Quick start
Enter a URL and campaign fields, copy the tagged link — nothing leaves your browser.
Paste the landing-page URL you want clicks to reach.
Add source, medium, and campaign (required) plus optional term and content.
Copy the assembled, correctly-encoded campaign URL.
In-depth guide
UTM parameters are the standard way to tell analytics where your traffic comes from. Tag a link once and every click is attributed to the right source, medium, and campaign in Google Analytics and most other tools. This builder assembles a correctly-encoded campaign URL in your browser, preserving any query string the destination already has.
newsletter, google, twitter.email, cpc, social.spring_sale, launch.Tag any link where you want to measure the channel separately from organic traffic:
Do not tag internal links between pages of your own site — it overwrites the original source and corrupts your attribution.
UTM values are visible in the URL bar and analytics — never put anything sensitive or personally identifying in them.
Email and email are counted separately — pick one casing and stick to it.The builder assembles the URL with the browser's URL API entirely client-side. No link, value, or keystroke is sent to a server or stored — the tool that builds tracking links does no tracking itself. Everything is discarded when you close the tab.
UTM parameters are tags appended to a URL's query string — utm_source, utm_medium, utm_campaign, utm_term, and utm_content — that analytics tools like Google Analytics read to attribute traffic to a specific campaign, channel, or ad. They do not change the page; they just travel along so your reports know where a visitor came from.
Google Analytics treats utm_source, utm_medium, and utm_campaign as the core trio — source identifies the referrer (newsletter, google), medium the channel type (email, cpc, social), and campaign the specific promotion. utm_term and utm_content are optional, used for paid keywords and A/B variants respectively. The builder flags the core three if left empty.
No. The URL is assembled in your browser with the standard URL API — nothing is logged or transmitted. Ironically for a tracking-link builder, the builder itself does no tracking; verify in DevTools → Network.
No. The builder uses the URL API's searchParams, so if your destination already has parameters like ?ref=abc, the utm_* tags are added alongside them rather than overwriting them. Existing utm_* values, however, are replaced with what you enter.
It is strongly recommended. Analytics treats utm_source=Google and utm_source=google as two different sources, fragmenting your reports. Pick a casing convention — lowercase is the usual choice — and apply it consistently across every link.
Yes. The URL API percent-encodes spaces and reserved characters in the parameter values automatically, so a campaign name like "spring sale" becomes spring%20sale and decodes correctly in your analytics tool. Underscores or hyphens are common alternatives to spaces.
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