OptinMonster - OptinMonster helps to convert abandoning website visitors into subscribers and customers.
Design Systems Repo - A collection of design system examples and resources
Sleeknote - Set up lead capture forms on your website in minutes. No coding required. Sync your new email leads with your favorite email service provider. Try for free.
Eva Design System - A free customizable design system
Poptin - Create engaging and high converting website pop ups and contact forms in minutes. With Poptin, you get access to a feature-packed conversion rate optimization toolkit that converts more website visitors into email subscribers, leads, and customers.
Ant Design System for Figma - A large library of 2100+ handcrafted UI components