Top 10 Go Captcha Projects

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1. SafeLine

   1 206 21,460 8.1 Go

   SafeLine is a self-hosted WAF(Web Application Firewall) / reverse proxy to protect your web apps from attacks and exploits.

   

   Project mention: SafeLine WAF running on Rootless Docker | dev.to | 2026-04-08

   In today’s post we’ll get going at getting SafeLine excellent WAF (Web Application Firewall) to agree at running on Rootless Docker setup.

2. SaaSHub

   www.saashub.com featured

   SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

   

3. base64Captcha

   2 0 2,363 5.1 Go

   captcha of base64 image string

   

4. go-captcha

   3 1 2,323 2.6 Go

   🖖 GoCaptcha: A high-performance, interactive behavior captcha library for Go. Supporting click, slide, drag-drop, and rotation modes to secure your applications with ease.

   

5. captcha

   4 1 2,056 2.0 Go

   Go package captcha implements generation and verification of image and audio CAPTCHAs. (by dchest)

   

6. aaWAF

   5 2 708 8.7 Go

   aawaf 是一款基于语义分析的Web应用防火墙

   

7. Private Captcha

   6 1 173 9.9 Go

   Independent, privacy-first, self-hostable PoW CAPTCHA service made in EU

   

   Project mention: Private Captcha VS ALTCHA - a user suggested alternative | libhunt.com/r/PrivateCaptcha | 2025-10-18

8. captcha

   7 0 164 3.1 Go

   :sunglasses:Package captcha provides an easy to use, unopinionated API for captcha generation

   

9. captcha-go

   8 1 9 10.0 Go

   A Go module for verifying captcha responses from Cloudflare Turnstile, Google reCAPTCHA v2 (checkbox and invisible), reCAPTCHA v3 or any other custom endpoint.

   

10. verity

    9 1 6 4.4 Go

    A tiny, super fast server for Altcha. (by Flameborn)

    

11. gocaptcha

    10 0 1 3.3 Go

    go captcha is a simple, lightweight library for generating and validating image-based CAPTCHA codes. (by kal72)

    

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