When someone opens your page with ?utm_source=… in the URL, FormKlar can store those values in hidden fields on submit. That is URL query capture — not full-funnel attribution software.
Teams want to know which campaign link produced a lead. Buying a heavy attribution suite just to stash utm_* on a form is overkill.
Add hidden fields and map them to query parameter names (for example utm_source). On the public form, values are read from the current page URL and submitted with the lead. You still analyze results in your own sheets or warehouse.
Hidden fields can bind to utm_* or any query key you choose.
See values in the inbox/export alongside email and message.
No multi-touch journeys, no ad-platform sync, no lead scoring engine.
In the builder, add hidden fields for each param you care about.
Point each field at utm_source, utm_medium, utm_campaign, etc.
Open your page with query params, submit, and confirm the inbox shows the values.
No. It captures query parameters present on the form page at submit time.
Hidden fields work on Free. Pro adds webhooks and white-label options.
Export CSV or send payloads via API/webhook to the tools you already use.