mojocn/base64Captcha

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

2367 stars · 310 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A Go library that generates various types of captchas (digits, strings, math, Chinese, audio) and returns them as base64-encoded image or audio strings. It supports pluggable storage backends and drivers, making it easy to integrate captcha verification into web applications.

Use cases

• add captcha verification to a Go web app
• generate image captcha as base64 string for API responses
• prevent bot signups and spam form submissions
• generate math or arithmetic captchas
• generate Chinese or other unicode character captchas
• generate audio captchas for accessibility
• store captcha answers in Redis or custom store

When to choose

• you need a captcha generator in a Go backend
• you want captchas delivered as base64 strings without serving image files
• you need customizable drivers and pluggable storage

When to avoid

• your stack is not Go
• you need modern invisible captcha or behavioral bot detection
• you need a hosted captcha service with managed analytics

Facets

library · maturity stable

image-processing security serialization security web-development backend go cross-platform captcha base64 anti-spam audio-captcha arithmetic-captcha unicode web-server

Member repositories

For agents

markdown · JSON · MCP: product_card(name="mojocn/base64Captcha")