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Add utm_source, utm_medium, utm_campaign, and other UTM parameters to a URL for tracking campaigns in Google Analytics and other tools.
Also covers: Campaign URL builder · UTM link generator
Existing parameters and #fragments are kept.
Where the traffic comes from.
The channel: email, cpc, social…
The promotion or launch name.
Paid search keyword.
Tells apart links in the same ad or email.
Needed for cost-data import in Google Analytics.
Enter the website URL
The page people should land on. Its existing query parameters and #fragment are kept, and old UTM values are replaced.
Source (where: newsletter, google), medium (how: email, cpc, social), and campaign (why: spring-launch). Term and content are optional, for keywords and A/B variants.
Values are lowercased and spaces become hyphens by default, so "Email" and "email" don't show up as two sources in your reports.
Google Analytics needs utm_source to attribute a visit, and uses source and medium together to assign the channel (like Email or Paid Search). Campaign names the promotion. Term, content, and id are optional.
UTM values are case-sensitive in analytics reports, so Newsletter, newsletter, and NEWSLETTER are counted as three sources. A consistent lowercase convention keeps reports clean.
No. Analytics treats a UTM-tagged click as a new traffic source, so tagging your own internal links overwrites how the visitor originally arrived and misattributes your conversions. Use UTMs only on links from outside your site: emails, ads, social posts, and partners.
No. Everything runs in your browser. Links aren't opened, fetched, or stored, and nothing is sent to a server.
Encoding
Percent-encode text for URLs and query strings, or decode %20-style escapes back to text. Handles UTF-8, + as space, and double encoding.
Inspect
Break a URL into protocol, host, port, path, query, and fragment, and list every query parameter decoded. Export as JSON.
Privacy
Strip utm_*, fbclid, gclid, and other tracking parameters from links, and unwrap Google and Facebook redirect links. Clean one link or a whole message.
SEO
Turn titles into clean URL slugs: lowercase, hyphenated, accents transliterated (é → e), with optional length limits and stop-word removal.
Naming
Generate brandable domain name ideas from your keywords: prefixes, suffixes, pairings, and blends across .com, .io, .ai, .dev, and more.
SEO
Generate the title, meta description, canonical link, and robots tags for a page, with length guidance and a search result preview.