ALTCHA

A free code library and command-line tool that creates and checks small computing puzzles, which help tell real visitors apart from bots on a website. It is for programmers who build website protection.

View on GitHub Visit website

Features

Protects a whole site, no code changesProgrammer must integrate the library into their own code.

SourceNo

Quick to run yourselfNeeds OpenSSL, argon2 and CMake set up by hand.

SourcePartly

Hosted for youYou must build and run it yourself.

SourceNo

Listed in

Replaces partly

A developer library only; no ready-made visitor widget is described.

How to help

AI contributionsNot stated

The project has not said how it feels about AI-written contributions. Maintainers can set this by claiming the listing.

Something wrong?

Suggest a fix Report this project