Capture Data Behind the Scenes
Pass UTM parameters, prefill values, and track metadata without showing fields to users. Enrich every submission invisibly.
Why Hidden Fields Are Essential
Some of the best data is collected without asking. Hidden fields capture UTM parameters, referral sources, user IDs, and custom values automatically. Every submission arrives enriched with context you need for attribution, personalization, and analysis.
Marketing Attribution
Know exactly which campaigns drive leads. Hidden fields capture UTM source, medium, campaign, and content parameters automatically. Attribute every submission to the marketing effort that earned it.
Seamless Prefilling
Pass known data into forms via URL parameters. When someone clicks from an email, their name or email address can prefill automatically. Reduce friction and improve data accuracy by not asking for information you already have.
Rich Context on Every Submission
Store page URLs, timestamps, user IDs, A/B test variants, and any custom data with each submission. Build complete pictures of who submitted, where, when, and how they got there.
Invisible Power, Visible Results
Hidden fields work silently in the background, enriching every submission with data that drives smarter decisions.
Automatic UTM Capture
Add UTM hidden fields and they automatically capture values from the URL. No configuration needed. When someone arrives from utm_source=google, that value is stored with their submission automatically.
URL Parameter Mapping
Map any URL parameter to a hidden field. Pass customer IDs, product codes, referral tokens, or any value through the URL into your form data. The parameter name maps directly to the field.
UTM
Full UTM Support
Capture utm_source, utm_medium, utm_campaign, utm_term, and utm_content automatically. Standard marketing parameters work out of the box with no configuration required.
Prefill
Form Prefilling
Pass values via URL to prefill any content or hidden value. Personalize forms with known data, reduce typing for users, and improve completion rates with smart prefilling.
Referrer
Referrer Tracking
Automatically capture the referring URL that brought users to your form. Know whether they came from your blog, a partner site, social media, or direct traffic.
Custom
Custom Parameters
Define your own URL parameters beyond standard UTMs. Pass product IDs, variant codes, user segments, or any custom data your workflow requires.
Frequently Asked Questions
Everything you need to know about hidden fields and tracking data through forms. Need help with setup? We are here.
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Build Complete Tracking Systems
Hidden fields work with other Formsuite features to create powerful tracking and personalization systems.