reCAPTCHA - reCAPTCHA is a free security service that protects your websites from spam and abuse.
Just For Fun - Showcasing creative side projects
scr.im - Don't share your email on public sites.
Storyheap - Manage your SnapChat and Instagram stories.
hCaptcha - Do you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled.
Zuck.js - JavaScript library that lets you add Stories everywhere