Captcha

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captcha is a Go package for generating and verifying image and audio CAPTCHAs. It provides tools for creating CAPTCHA challenges and validating user responses, making it useful for securing applications.

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At a glance

Pricing

open-source

Free tier

Yes

API

Yes

Skill level

Technical

About

What is captcha?

captcha is an open-source Go package designed to implement the generation and verification of CAPTCHA challenges. It supports both image and audio CAPTCHAs, offering developers the necessary tools to create these challenges and subsequently verify user input. This package is particularly useful for adding a layer of security to web applications and services by distinguishing between human users and automated bots. Its availability on GitHub as an open-source project allows for community contributions and flexible integration into Go-based projects.

Best used for

Securing web applications and services by implementing image and audio CAPTCHA challenges to prevent bot access.

Common actions

Add CAPTCHA to application

Secure web forms

Prevent bot access

Verify human users

Integrate CAPTCHA functionality

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Capabilities

Key features

Image CAPTCHA generation
Audio CAPTCHA generation
CAPTCHA verification
Go package
Open-source

Target Audience

Go developersWeb developersSecurity engineers

Integrations

Not yet documented

Pricing & Plans

open-source

Free

FAQs

Does this open-source CAPTCHA package include advanced bot detection beyond basic image/audio challenges?

No, this package primarily focuses on generating and verifying standard image and audio CAPTCHA challenges. It does not include advanced behavioral analysis or other sophisticated bot detection mechanisms. For those, you would need to integrate additional security solutions.

Can I customize the appearance and difficulty of the generated image CAPTCHAs?

Yes, the package offers options to customize aspects like character length, font, background, and noise levels for image CAPTCHAs, allowing you to adjust their appearance and difficulty to suit your application's needs.

Is there a rate limit or usage restriction since it's an open-source Go package?

As an open-source Go package, there are no inherent rate limits or usage restrictions imposed by the package itself. You are free to use and integrate it into your applications as needed, subject to the terms of its open-source license.

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