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Toolzum

UTM Builder

Build tagged campaign URLs with utm_source, medium, campaign, term, and content — no broken query strings. Tag 50 launch links without typos — free, local, copy-paste.

100% Local Browser Native

How to Use the UTM Builder

1. Paste the base URL

The destination page without existing tags.

2. Fill the five fields

Source, medium, campaign required; term and content optional.

3. Copy the tagged URL

Use it across the campaign without retyping.

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Frequently Asked Questions

Which UTM parameters matter?

Source, medium, and campaign always; term for paid keywords, content for A/B variants. A launch link reads ?utm_source=newsletter&utm_medium=email&utm_campaign=spring — consistent lowercase throughout.

How do I avoid broken URLs?

The builder encodes spaces and special characters automatically — hand-typed tags break on & and # most often. Copy the finished URL instead of retyping it.

Where do I see the results?

Google Analytics Realtime and Acquisition reports split by your tags within hours. Name campaigns so future-you understands them in six months.

Is my URL data uploaded?

No — building runs locally in your browser. URLs never leave your device.

Last updated October 2026