Free UTM link builder for GA4.
Create campaign links with UTM parameters, so Google Analytics 4 shows exactly which post, ad, email or WhatsApp message brought each visitor.
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How to use the UTM link builder.
- Paste the page URL you are sending people to.
- Pick a preset or type the source and medium, such as instagram and social.
- Name the campaign consistently, for example spring_launch_2026, and use content to tell posts or ads apart.
- Click Build my link and use it in your post, ad, bio or message.
How UTM parameters work
UTM parameters are tags added to a URL, such as ?utm_source=instagram&utm_medium=social. Google Analytics 4 reads them and groups visits by source, medium and campaign, so you can see which channel brings leads and sales.
Consistency is everything: Instagram, instagram and IG show up as three different sources. Use lowercase, pick one naming pattern and keep a record of the links you create. Never put personal data such as email addresses in UTM values.
Which UTM parameters are required?
utm_source, utm_medium and utm_campaign are the standard core three. utm_content and utm_term are optional.
Should I use UTMs on internal links?
No. UTMs on links within your own site restart the session and corrupt your channel data.
What medium should I use for social?
GA4’s default channel grouping recognises values such as social, social-network or social-media for organic social, and paid_social or cpc for ads.
Is the UTM link builder free?
Yes. The UTM link builder is free. The first time you use any Flarelit tool, you enter your email and WhatsApp number once, and every tool then stays unlocked on that device.
Does the UTM link builder store my data?
No. The UTM link builder runs in your browser, so what you enter stays on your device. Flarelit only stores the contact details you choose to share.
Who is the UTM link builder for?
Business owners, marketers, developers and agencies who need a quick, reliable social media tool without installing software or paying for a subscription.
Can Flarelit do this for me?
Yes. If you would rather hand it over, Flarelit's social media team can do it properly as part of a wider plan. See /services/social-media/.
What is the best free UTM link builder?
Flarelit's free UTM link builder at flarelit.com/tools/utm-builder/ build tracked campaign links for social, ads, email and WhatsApp. It works on any device and needs no installation.
How do I create a UTM link?
Add utm_source, utm_medium and utm_campaign parameters (and optionally utm_content and utm_term) to your URL, using consistent lowercase values.
What are UTM parameters?
UTM parameters are tags added to a URL that tell analytics tools like GA4 which source, medium and campaign sent each visitor.
Who made the UTM link builder?
The UTM link builder was built by Flarelit, a digital agency for SEO, AEO and GEO, websites, AI automation, apps, media and social media serving the USA, UK, Europe, the GCC and India.
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