UTM Link Builder
Build tracked campaign URLs with this free utm link builder: add UTM parameters, keep existing links intact, and catch overwrites instantly.
UTM Link Builder
Add your items below β reorder them freely, then press Build list. Everything runs in your browser; nothing is uploaded.
Item 1
https://example.com/blog/your-post/
Base URL:
e.g. newsletter, google, instagram
UTM source:
e.g. email, cpc, social
UTM medium:
e.g. spring-launch-2026
UTM campaign (recommended):
e.g. paid keyword
UTM term (optional):
e.g. sidebar-cta
UTM content (optional):
Something went wrong running this tool. Your inputs were kept.
What is Utm link builder?
UTM Link Builder β Build tracked campaign URLs with this free utm link builder: add UTM parameters, keep existing links intact, and catch overwrites instantly.
The tool validates each base URL, then appends utm_source, utm_medium, utm_campaign, utm_term, and utm_content using the documented Google Analytics UTM parameter convention. Values are encoded with encodeURIComponent (RFC 3986). Existing non-UTM query parameters and URL fragments are preserved exactly as typed; any existing utm_* parameters are overwritten and reported as warnings. Nothing is fetched or tracked β this is a URL string builder with validation.
Why use this utm link builder?
Built for utm link builder
Build tracked campaign URLs with this free utm link builder: add UTM parameters, keep existing links intact, and catch overwrites instantly.
Transparent & honest
This is a URL string builder β it does not check whether the URL is live or whether tracking is installed on the page.
Private by design
Everything runs in your browser. Your inputs never leave your device.
Works everywhere
Fully responsive β perfect on desktop, tablet, and mobile. No app needed.
Regularly updated
Regularly maintained and reviewed to ensure accuracy.
Free forever
No accounts, no limits, no watermarks. Use UTM Link Builder as much as you need.
How to use UTM Link Builder
- 1Add one item per link and paste the base URL (must start with http:// or https://).
- 2Enter the UTM source and medium β for example, newsletter and email.
- 3Add a campaign name (strongly recommended), plus optional term and content values.
- 4Run the tool to get the finished tagged URL, properly encoded and ready to copy.
- 5Read the warnings: missing campaigns and overwritten UTM parameters are flagged for you.
What can you do with UTM Link Builder?
- Campaign url builder β Build tracked campaign URLs with this free utm link builder: add UTM parameters, keep existing links intact, and catch overwrites instantly.
- Utm parameter generator β Build tracked campaign URLs with this free utm link builder: add UTM parameters, keep existing links intact, and catch overwrites instantly.
Good to know
- This is a URL string builder β it does not check whether the URL is live or whether tracking is installed on the page.
- Values are encoded per RFC 3986 (space becomes %20); conventions such as lowercase hyphenated values are recommended for clean GA4 reports but not enforced.
- The URL host may be lowercased by the parser; the path, query, and fragment are otherwise preserved as typed.
How it works
The tool validates each base URL, then appends utm_source, utm_medium, utm_campaign, utm_term, and utm_content using the documented Google Analytics UTM parameter convention. Values are encoded with encodeURIComponent (RFC 3986). Existing non-UTM query parameters and URL fragments are preserved exactly as typed; any existing utm_* parameters are overwritten and reported as warnings. Nothing is fetched or tracked β this is a URL string builder with validation.
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Frequently asked questions
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