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Documentation Index

Fetch the complete documentation index at: https://fillout.com/help/llms.txt

Use this file to discover all available pages before exploring further.

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What CAPTCHA is

CAPTCHA, which stands for Completely Automated Public Turing test to tell Computers and Humans Apart, is a security feature that requires users to prove they are human, preventing automated bots from accessing or submitting information.

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How to add a CAPTCHA field

On the left-hand panel of your form, click or drag and drop Captcha. Screenshot 2025-10-02 at 5.37.55 PM.png That’s it! Publish and share your form. Respondents will now automatically be asked to verify themselves through this field.