Go CAPTCHA

Secure your Go backend with a CAPTCHA solution built for modern Go applications. Our Go CAPTCHA SDK integrates with any Go web application or API. Whether you're building with popular frameworks or standard net/http, the SDK verifies captcha responses server-side with minimal code. Protect user registration, login endpoints, and form submissions in your Go applications without disrupting the user experience.

Why Choose Friendly Captcha for Go?

Privacy-First, Invisible Go CAPTCHA

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

Import the SDK. Friendly Captcha Go CAPTCHA works with any Go web framework or standard library.

Protect Your Go App Against Threats

Bot protection for Go. Trusted by developers worldwide.

Go backends and APIs face constant automated threats. Traditional CAPTCHA solutions create friction on the frontend while sophisticated bots still bypass server-side validation. Your Go application needs robust verification without adding complexity to your backend logic.

The Friendly Captcha Go SDK provides server-side verification for invisible bot protection. The SDK integrates directly into your Go handlers and validates CAPTCHA responses with minimal code. Client-side cryptographic proof-of-work happens in the user’s browser while your Go backend verifies authenticity through the Friendly Captcha API.

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How the Go CAPTCHA Integration Works

1.

Create a Friendly Captcha account

Create your Friendly Captcha account for free to get started with Go CAPTCHA integration. Pick a plan that fits your needs and enjoy a 30-day free trial.

2.

Log in and create an application

Create an application in the Friendly Captcha dashboard to get a sitekey for your Go integration, as shown in the screenshot below.

3.

Create an API key for your application

Create an API key in the Friendly Captcha dashboard, as shown in the screenshot below.

Please make sure to copy and save the API key as you can only access it once.

4.

Install the Friendly Captcha SDK in Go

Get the Friendly Captcha SDK for Go and install it.

5.

Connect Friendly Captcha with Go

To finish the CAPTCHA integration, access the Friendly Captcha plugin settings in Go and paste the sitekey generated in step 2 and the API key generated in step 3 into the respective fields.

Your Go application is protected with Friendly Captcha.

Completed: 2s (2480K/s)
I'm not a robot
FriendlyCaptcha ⇗

FAQ

A CAPTCHA for Go is a security mechanism built into Go-based web applications to verify that interactions are made by human users and not automated bots. A modern Go CAPTCHA like Friendly Captcha protects your Go application by filtering out unwanted or malicious submissions and helps maintain data integrity, security, and performance.

Friendly Captcha uses an invisible proof-of-work system that seamlessly embeds cryptographic challenges into the Go application. These Go CAPTCHA challenges run in the background and are validated on the server, ensuring robust bot protection without any noticeable disruption to the user experience.

Friendly Captcha is the best CAPTCHA for Go. It comes with no user friction and effective bot protection. Unlike Google reCAPTCHA with its traditional image recognition tests, it takes a proof-of-work approach. Friendly Captcha ensures both strong security and a smooth user experience.

You need a CAPTCHA for Go if your application handles form submissions, user registration or sensitive data. This helps to prevent spam and automated abuse, reduce the risk of malicious activity and ensure that your Go application remains secure and reliable.

Implementing a CAPTCHA in your Go application creates a crucial barrier against spam and bots. Modern CAPTCHA providers like Friendly Captcha protect both user data and system resources. It increases trust by ensuring that only real interactions are processed, contributing to a more secure and reliable environment.

Yes, CAPTCHA is accessible, especially when you choose an accessible solution like Friendly Captcha. Its invisible background verification avoids intrusive tasks and ensures that users of all abilities can interact with your Go application without unnecessary challenges.

You can find comprehensive support for integrating Friendly Captcha in our detailed documentation available on our website. Additionally, our dedicated support team is ready to help with your implementation.

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Start your integration

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