Web tool

UTM Link Builder

Build campaign URLs with encoded UTM parameters while preserving existing query values.

Continue your work

Choose a related tool for the next step. Each opens with a fresh workspace.

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Practical guide

How to use UTM Link Builder

Create a campaign link for a newsletter, social post, or other channel without editing query punctuation by hand. The builder keeps unrelated query parameters and the URL fragment while replacing the five standard UTM fields with your chosen values. It does not contact the destination or send campaign information to an analytics service.

Step by step

  1. Paste an absolute HTTP or HTTPS destination URL. Remove any embedded username or password before using it.
  2. Enter source, medium, and campaign. Add term or content when you need to distinguish keywords or placements.
  3. Select Build URL, inspect the complete result, and copy it. Test the destination yourself before publishing the link.

Example

Inputhttps://example.com/?plan=team + newsletter / email / launch
Resulthttps://example.com/?plan=team&utm_source=newsletter&utm_medium=email&utm_campaign=launch

How it works

The browser URL parser separates the path, query, and fragment. URLSearchParams encodes campaign values, replaces repeated standard UTM fields, and removes optional term or content fields left blank. Other query values remain present, although their serialized encoding may be normalized by the browser.

Important limitations

  • The tool does not verify that the destination exists, accepts these parameters, or records campaign attribution.
  • Values are case-sensitive in many reporting workflows. Existing signed URLs may break when query serialization changes, even if their parameter values are preserved.

Real workflows

When this tool is useful

Newsletter links

Label an email campaign consistently and distinguish the header link from a footer link using the optional content field.

Existing product links

Add campaign labels to a product URL that already contains selection parameters without replacing those values or losing its fragment.

Review the result

What to check before using the output

Read the host and path as well as the campaign fields. Keep a consistent naming convention across the team, and check that none of the values contains personal information. Copying a link does not validate its destination.

  • Confirm the destination host.
  • Review required and optional labels.
  • Test links separately before publication.

Choose the right method

When another tool is better

Use the campaign management system of your analytics platform when you need shared naming rules, link approval, attribution reports, or automatic short links. This tool provides local URL construction only.

Privacy and browser behavior

The URL is never fetched by this builder. Once shared or opened elsewhere, its query parameters may be visible in logs, history, and analytics, so they must not contain secrets or personal data.

Frequently asked questions

Does this install analytics or track visitors?

No. It only constructs text locally. Whether a later visit records attribution depends on the destination website and its analytics setup.

Can I include spaces or Chinese text?

Yes. Provide ordinary text and the browser encodes it as query data. Do not pre-encode values: a literal percent sign would itself be encoded again.