Free online tool
UTM Link Builder
Add UTM parameters to any URL for accurate campaign tracking in Google Analytics and other tools.
Why UTM parameters matter
UTM parameters are tags added to the end of a URL that tell your analytics tool where a visitor came from. Without them, all "external" traffic gets lumped into a single "direct" or "referral" bucket, and you lose the ability to measure which specific campaign, email, or ad drove each visit. With them, you can prove ROI and iterate quickly on what's working.
Field cheat sheet
Source is where the click came from (google, newsletter, twitter). Medium is the type of channel (cpc, email, social, referral). Campaign is a name that groups everything under one initiative. Keep values lowercase and use underscores for consistency — analytics tools treat "Email" and "email" as different sources.
+Do UTMs affect SEO?
They shouldn't be added to internal links or links you want indexed. Use them only on external, campaign-driven URLs.
+Should I use a link shortener?
Optional. Long URLs work fine, but shorteners are helpful in printed material and social posts with character limits.
Why use the UTM Link Builder on ToolNest?
The UTM Link Builder is one of more than forty free browser-based utilities we maintain on ToolNest. Every tool on the site is engineered around the same three promises: it must be fast, it must protect your privacy, and it must be genuinely useful without hiding features behind an account, a paywall, or an email capture form. Whether you use the UTM Link Builderonce a month or several times a day, it should feel like a native part of your workflow — open the tab, get the result, move on.
Everything happens directly inside your web browser. When you type, paste, or upload something into the UTM Link Builder, that data never leaves your device. There is no server round-trip, no logging, no analytics pixel watching your keystrokes, and no third-party API silently receiving a copy of your input. Closing the browser tab is the same as clearing your session. This is a deliberate design choice: too many free "online tools" quietly funnel user content through remote servers, and we do not think a utility as small as this one justifies that risk.
Speed is the other pillar. The UTM Link Builder loads on a cold connection in well under a second and stays responsive on older phones, low-power laptops, and metered mobile networks. There are no heavy frameworks layered on top of the tool, no autoplay video ads, and no blocking third-party scripts. Search engines like Google reward pages that load quickly and stay interactive, but more importantly, so do human visitors who came here to get one specific job done.
If the UTM Link Builder saves you time, the best thing you can do is bookmark this page and share it with a colleague or classmate who might need it. We also welcome direct feedback — bug reports, feature requests, and suggestions for entirely new tools all go to the same inbox and are read by a human. The best tools on ToolNest started life as a one-line reader email, and this page will keep improving as long as people keep telling us what they wish it did better.