A free Asfar Tools utility
UTM Builder
Enter a URL, source, medium, and campaign name to create a correctly encoded UTM link. Agree on naming conventions before sharing campaigns.
Run the utility
The result appears on your device and is not saved to a public account.
Your result will appear here after running the utility.
How to use
- Add your input or choose a local file.
- Review the preview and available options.
- Copy the result or download it to your device.
Privacy and limits
Files are processed on your device or deleted from the server within 15 minutes. Do not use this tool on files you do not have the right to handle.
Enter a URL, source, medium, and campaign name to create a correctly encoded UTM link. Agree on naming conventions before sharing campaigns. Build a campaign URL with consistent tracking tags. This page explains the practical workflow and keeps limitations visible. Add your input or choose a local file. Then Review the preview and available options. Then Copy the result or download it to your device. Use the output after reviewing it for your context, and never paste secrets into a public utility.
Frequently asked questions
Do I need an account for UTM Builder?
No. The tool is available directly without a forced sign-up.
Are my utm builder inputs public?
Browser-first tools keep processing local when practical; user inputs are not sold or published.
Can I download a utm builder result?
Yes. A copy or download action appears after the result is ready.
Last updated: Aug 27, 2026