Last summer I wrote about the lack of real alternatives to Google’s reCAPTCHA service for preventing bots from interacting with websites. I personally use a captcha on my contact form to reduce spam.
Recently I heard about hCaptcha from Cloudflare’s post on switching from reCAPTCHA to hCAPTCHA. It appears hCaptcha is a more or less drop-in replacement for reCAPTCHA. I have personally been trying to move away from Google’s services as they adopt more creepy data collection and sharing practices, but was stuck with reCAPTCHA until now.
I’ve moved my contact form to hCaptcha, which is powered by this simple Ruby application that can run for free on Heroku.