How do I build a UTM link for a campaign?

Enter your Website URL, then fill Campaign Source, Campaign Medium and Campaign Name. Campaign Term and Campaign Content are optional. The Your tracking URL box updates as you type, and Copy copies it.

Does the UTM builder change my values to lowercase?

Yes, if Force lowercase is ticked, which is recommended because UTM values are case-sensitive in analytics. Untick it if you need to keep your exact capitalization.

Why does it say Enter a valid website URL?

The URL needs a hostname with a dot, or localhost. The tool adds https:// if you leave off the scheme, but plain text such as a sentence is rejected. Check for typos or missing domain extensions.

Can I turn the tracking link into a QR code for print?

Yes. A QR code for this link appears under the tracking URL, and Download QR (PNG) saves it. The QR code (print) preset fills in typical print values.

How can I share my campaign setup with a teammate?

Click Copy prefill link. It copies a page link that stores your URL and UTM values in the address hash, so anyone opening it sees the form already filled in. The values are not sent to a server.

Yes. Every tool is free to use, with no account and no credit card. The work runs on your device rather than on our servers, which is what keeps it free to run.

Does it work on mobile?

Yes. It runs in current mobile browsers on iOS and Android, with nothing to install.

🔗

Free UTM Campaign Link Builder

Build trackable campaign URLs with UTM parameters for Google Analytics and other tools. Live preview, presets, and one-click copy.

Runs in your browserNo sign-up, no pop-upsNo login requiredFree forever

Works offline once loaded

Website URL *

Quick presets

Campaign Source *utm_source

Where the traffic comes from (referrer).

Campaign Medium *utm_medium

The marketing channel/medium.

Campaign Name *utm_campaign

The specific campaign or promotion.

Campaign Term utm_term

Paid keywords (optional, for paid search).

Campaign Content utm_content

Distinguishes similar links/ads (optional, for A/B tests).

Force lowercase (recommended — UTM values are case-sensitive in analytics)

Enter a website URL above to build your tracking link

💡 UTM parameters let Google Analytics, Plausible, and other tools attribute traffic to specific campaigns. Keep naming consistent (e.g. always 'email', never sometimes 'Email') — analytics treats them as case-sensitive and will split your data otherwise.

Common uses

UTM Links for Email CampaignsTrack which newsletter or email drove traffic and conversions in your analytics.
UTM Links for Social MediaMeasure traffic from each social platform and post accurately.
UTM Links for Paid Ad CampaignsAttribute conversions to specific ads, keywords, and creatives.
UTM Links for Print & QR CodesTrack offline campaigns — flyers, posters, business cards — via QR codes.
UTM Links for Influencer PartnershipsGive each influencer a unique tracked link to measure who drives results.

How It Works

The UTM builder assembles tracking URLs entirely in the browser using the standard URL and URLSearchParams APIs — no server, no upload. As you type, a live useMemo hook parses your base URL, validates the hostname, and appends only the UTM parameters you have filled in.

1
URL parsing and validation
Your base URL is fed into the browser's built-in URL constructor. The tool auto-prepends https:// if no scheme is present, then checks that the hostname contains at least one dot (or is localhost) — rejecting freeform prose before it can corrupt the output.
2
UTM parameters appended via URLSearchParams
Each filled-in field (source, medium, campaign, term, content) is written to the URL's search-params object with URLSearchParams.set(). If the lowercase toggle is on, values are lowercased at this point, which prevents mismatched attribution caused by capitalisation inconsistencies.
3
QR code rendered by the qrcode library
Whenever the final URL changes, the qrcode library renders a 256-px data-URL for the inline preview and simultaneously draws a 1024-px version onto an off-screen canvas. The canvas is then serialised to a PNG Blob via canvas.toBlob() so the download button can save it synchronously — required on iOS, where async Blob creation inside a click handler is blocked.
4
Shareable template via the page hash
The form state (base URL plus any UTM values) is continuously encoded into the page's URL fragment using window.history.replaceState. Anyone who opens that hash-bearing URL gets the form pre-filled, so you can save or share a campaign template without any server-side storage.

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