UTM Campaign URL Builder

Use this free UTM builder to create tagged campaign URLs that keep your Google Analytics reports clean and consistent. Add your source, medium and campaign name, pick a preset for Facebook, Google, TikTok, LINE, Email or Instagram, and copy a ready-to-share link. Thai values are encoded correctly, and the tool warns you about duplicate UTM tags. Free, no sign-up — everything runs in your browser.

Website URL *

The page you want to send traffic to. http:// or https:// is added if you leave it out.

Quick presets

Campaign Source * utm_source

Where the traffic comes from — e.g. google, facebook, newsletter.

Campaign Medium * utm_medium

The marketing channel — e.g. cpc, email, social.

Campaign Name * utm_campaign

The name of your campaign or promotion — e.g. summer_sale.

Campaign Term (optional) utm_term

For paid keywords — the term you are bidding on. Optional.

Campaign Content (optional) utm_content

Tells apart similar links or ad variants — e.g. banner_a. Optional.

Options Force lowercase (Latin only)

Keeps values consistent. Thai and other non-Latin text is left untouched.

Replace spaces with

Your campaign URL will appear here

Enter a website URL and fill in the required UTM fields to build your link.

Your campaign URL

URL to copy (encoded)

Readable preview

Parameter breakdown

Parameter	Value

Recent URLs

Your last 20 built URLs, saved in this browser only.

Built URLs will be listed here.

How to use

Paste the landing-page URL you want to send traffic to.
Tap a preset (Facebook, Google, TikTok, LINE, Email, Instagram) or fill in the source and medium yourself.
Add a campaign name, plus optional term and content values.
Copy the finished campaign URL and use it in your ad or post.

Features

One-click presets for Facebook, Google, TikTok, LINE OA, Email and Instagram
Correct percent-encoding for Thai and other non-Latin campaign values
Force-lowercase option and space handling (%20, hyphen or underscore) for tidy tags
Warns when the URL already has UTM parameters or a #fragment
Keeps your last 20 built URLs in this browser, with CSV export

Frequently asked questions

What are UTM parameters?

UTM parameters are tags added to a URL (utm_source, utm_medium, utm_campaign, utm_term, utm_content) that tell Google Analytics where your traffic came from. They let you measure which channels and campaigns actually drive visits and sales.

Do UTM values need to be lowercase?

UTM values are case-sensitive in Analytics, so "Facebook" and "facebook" show up as two different sources and split your data. Keeping everything lowercase avoids that. The force-lowercase option handles Latin text and leaves Thai untouched.

Can I use Thai text in UTM parameters?

Yes. Thai values are percent-encoded automatically so the link works everywhere. The tool shows both the encoded URL to copy and a readable preview, so you can confirm the Thai text is correct.

What happens to parameters already in my URL?

Any existing query parameters and the #fragment are kept. If your URL already contains UTM tags, the tool warns you and overwrites only those UTM values with the new ones you enter.

Is my data sent to a server?

No. The whole tool runs in your browser with JavaScript, and your recent URLs are stored only in this browser. Nothing is uploaded.