Memberstack for Developers

User Authentication infrastructure with built-in payments.

A versatile, easy-to-use and scalable JavaScript library for web applications and online businesses. Use quick plug-and-play modals or customize your own.

Get Started for free
No credit card required
Checkout Method
Password Reset
Block of code
A block of code

What top developers say about Memberstack

Nigel Shaw, Developer

"As a software developer of 25 years I've seen a lot of apps and SAAS products and Memberstack is one of the best I've ever seen. The ease of use of the site is unreal. Amazing job putting it all together and providing an indispensable tool. Thanks for a real life-saver solution!!!!! Super satisfied user."

Joe Krug, Agency Founder

"The Memberstack team and product is A+++. It's what the web development community needs!"



+ web developers and designers using Memberstack



apps & businesses launched on Memberstack





in revenue earned by Memberstack customers




API Requests processed per month




members registered on websites via Memberstack

Ready-to-use modals

Save time and avoid the hassle of building out the same user authentication system every time.

• User signup, login and checkout modals
• Compliant, secure and scalable
• Password resets, profile management and more...

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No credit card required
Learn more
A gif showing a sign-up form
A gif showing a profile information form
A gif showing a database of registered members

APIs and webhooks

A secure, encrypted and scalable user authentication database for your web application — with built-in payment integrations.

• Plug-and-play modals
• GDPR Compliant
• Back-end API and more...

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No credit card required
Learn more
A gif showing the Memberstack documentation