UCAPTCHA blocks spam bots from submitting your contact forms using a simple, elegant checkbox — no image puzzles, no squinting at blurry text, no frustration for your visitors. Drop in one line of HTML and you're protected.
Your entire installation looks like this
Works in Google Tag Manager, WordPress, Webflow, Squarespace, or plain HTML
No server changes, no per-visitor accounts, no accessibility barriers.
Sign up, add your website domain, and get your unique site key in under a minute.
Drop the script tag into your site header, footer, or Google Tag Manager. Every form on your site is instantly protected — no manual placement needed.
UCAPTCHA stacks multiple bot-detection techniques so spam submissions are stopped before they reach your inbox — without annoying your visitors.
Visitors simply tick "I'm not a robot" and they're through. No image puzzles, no blurry text — just a clean, familiar interaction that real humans breeze past.
An invisible decoy field is silently injected into your form. Bots fill it in automatically — real users never see it. Instant, zero-friction bot detection.
Timing and interaction patterns are measured behind the scenes. Submissions that arrive suspiciously fast or show no human interaction are blocked automatically.
No plugins to install, no framework-specific setup. If you can add a script tag, you're done.
Create a free account, add your site, and have the widget live in minutes.
Get started — it's free