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Firebase CAPTCHA

Friendly Captcha is developing a dedicated Firebase CAPTCHA integration. Currently, manual implementation using our available SDKs is possible but requires Firebase development knowledge. A dedicated package with streamlined setup is coming soon.
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Why Choose Friendly Captcha for Firebase?

Privacy-First, Invisible Firebase CAPTCHA

Don't make your users click on cars. Switch to a modern, invisible Firebase CAPTCHA.

User-Friendly

Friendly Captcha does not require any tasks from your users. It runs automatically in the background.

Fully Accessible

Don’t lock out your real users. Friendly Captcha is fully accessible and officially certified as WCAG 2.2 AA compliant gold standard.

Privacy-First

Friendly Captcha protects your users’ privacy and is compliant with GDPR, CCPA, LGPD, and more.

Easy to Integrate

Works with Firebase. Implement the Firebase CAPTCHA following the Friendly Captcha documentation.

Protect Your Firebase Apps Against Threats

Bot protection for Firebase. Trusted by developers worldwide.

Firebase applications face persistent threats: authentication abuse, fraudulent registration, database manipulation, and resource exhaustion. Traditional CAPTCHAs contradict Firebase’s goal of rapid development and seamless experiences.
 
Friendly Captcha offers fully invisible bot mitigation with zero end-user involvement. Our proof-of-work approach stops automated threats while authentic users interact unhindered. Engineered for privacy compliance, it is fully compliant with GDPR and CCPA.
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How the Firebase CAPTCHA Integration Works

Integrating Friendly Captcha into an Firebase application involves three steps: creating the application, displaying it on the front end, and back end verification. The Friendly Captcha documentation provides a helpful implementation guide covering everything from widget setup to server-side verification.

A fully pre-built Firebase integration is in development. In the meantime, our support team is available to assist Enterprise customers with integrating Friendly Captcha into their Firebase applications.

Contact support
View documentation

Create an application in the Friendly Captcha dashboard.

Add the Friendly Captcha widget to your Firebase app.

Verify the CAPTCHA response in the backend.

FAQ

Yes! Friendly Captcha can be added to your Firebase app manually using our documentation.

To confirm your integration is successful, follow the step-by-step manual in our documentation. We walk you through testing Friendly Captcha within your Firebase workflow.

A Firebase CAPTCHA helps protect your serverless app from spam and bot abuse. Traditional CAPTCHAs like Google reCAPTCHA rely on image-based tests, but Friendly Captcha offers a more modern solution – running cryptographic challenges silently in the background, without disrupting users.

Friendly Captcha works by issuing lightweight, proof-of-work challenges in the background. These help distinguish real users from bots without requiring any input from the user. It integrates easily into your Firebase setup.

Friendly Captcha is one of the best CAPTCHA options for Firebase projects. It’s privacy-first, fully automated, and easy to implement. Plus, it works invisibly, giving users a seamless experience while keeping bots out.

Many CAPTCHA tools rely on visual or audio tests that can exclude users with disabilities. Friendly Captcha is fully WCAG- and EAA-compliant, ensuring accessibility for all users across your Firebase app or website.

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Privacy matters

Learn more about our commitment to protect your users' privacy.

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Start your integration

Adding Friendly Captcha takes only minutes and just a few lines of code.

Read the docs