A simple, unopinionated Go package for generating customizable CAPTCHA images with framework independence.
Captcha is a Go package that provides a simple and unopinionated API for generating CAPTCHA images to protect web applications from automated bots. It allows developers to create customizable CAPTCHAs with preferred fonts and dimensions, integrating seamlessly into any Go-based web project. The package solves the need for a lightweight, framework-independent CAPTCHA solution without external dependencies.
Go developers building web applications that require bot protection, such as login forms, registration pages, or comment sections. It's ideal for those who prefer a minimal, customizable CAPTCHA library without being tied to specific web frameworks.
Developers choose Captcha for its simplicity, flexibility, and framework independence, allowing easy integration into existing Go projects with full control over fonts and customization. Unlike heavier alternatives, it offers a lightweight, focused solution without unnecessary dependencies or complexity.
:sunglasses:Package captcha provides an easy to use, unopinionated API for captcha generation
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Works with any Go web framework or HTTP handler without dependencies, as emphasized in the description and usage example with plain http.ResponseWriter.
Allows developers to use preferred fonts for CAPTCHA text, addressing a key need mentioned in the 'Why another captcha generator?' section and shown in the font example.
Provides straightforward methods like captcha.New() and WriteImage() for easy integration, demonstrated in the basic usage snippet with minimal code.
Includes options for generating math-based CAPTCHAs, offering an alternative verification method to text-based ones, as illustrated in the sample images.
Lacks support for audio CAPTCHAs or other aids, which limits compliance with accessibility standards like WCAG for visually impaired users.
Requires developers to manage CAPTCHA text storage and comparison themselves, adding complexity as shown in the session example where text is saved separately.
Relies on Go 1.16+ due to the embed package, restricting use in legacy projects, as explicitly noted in the Compatibility section.