Putri Karunia profile picture

Putri Karunia

Co-founder of Cotter.app, web dev & design enthusiast.


UC Berkeley


CTO at Cotter

The Simplest Way to Authorize Github OAuth Apps with Next.js and Cotter

Reactions 9
15 min read

How to Make an Interactive Todo List CLI using Python with an Easy Login Mechanism

Reactions 36 Comments 3
10 min read

Angular: Send Email, SMS, and WhatsApp Verification Code to New Users Worldwide

Reactions 10
4 min read

Passwordless Login with Email and JSON Web Token (JWT) Authentication using Next.js

Reactions 19
8 min read

Flutter Email & Phone Auth: 3 Simple Steps To Log Your Users In via Email, SMS, and WhatsApp using Cotter

Reactions 19
7 min read

Fast Passwordless Auth in Flutter: Add a One-line Sign Up and Login with Device using Cotter

Reactions 32 Comments 1
5 min read

Say Goodbye To Passwords: The Easy Way to Add Sign In With Device to Your React Native App in 5 Minutes

Reactions 9
5 min read