Student on a laptop learning Chinese with KellynKai

Premium Chinese Lessons with Live Instructors

Combines effective curriculum with high quality one-to-one live classes and flashcard mobile apps.
We help students become proficient in Mandarin speaking, listening, reading, and typing very quickly.

The Chinese learning platform that best meets your goals.

KellynKai is the best online Chinese tutoring platform to help you read, write, and speak fluent Mandarin Chinese. We offer a variety of high quality Mandarin courses in Beginner Level, Intermediate Level, AP Chinese, Business Chinese, High School Chinese, HSK, and more for adults, teenagers, and kids aged 8-12 with live tutors on our web-based classroom. Our personalized mobile Flashcard app is available for students to review their lessons anytime, anywhere.

About KellynKai
Student Testimonials

Excellent Platform

KellynKai Chinese kids with heart balloons

Effective Material

Our structured learning material is engaging and easy to follow. It is designed for English speakers.

KellynKai Chinese kids with heart balloons

Top Tutors

Our highly qualified tutors are friendly communicators. All tutors are carefully pre-selected and well trained.

KellynKai flashcard app to study Chinese

Flashcard Mobile App

New vocabulary that students learn in class is automatically added to the Flashcard App. Review lessons on-the-go, conveniently!

KellynKai classes available on demand

On Demand

Classes are available on-schedule and on-demand. Start classes anytime and end classes anytime (Patent Pending).

What Our Customers Say*


Working professional

Palo Alto, CA

I was looking for Mandarin classes mear me. When I found KellynKai, I really felt very lucky that this kind of company exists. It really differentiated from the other online platforms and tutoring companies that I have tried in both New York and California, and the founder Crystal herself is one of a kind. It really makes my learning experience as enjoyable and meaningful as it is. A language is more than just a technical ability, it's the way that you communicate with your loved ones; it's the way that you shape your identity. It's such a sensitive and meaningful part of who you are. If you're serious about it, it'll be hard-pressed to find something better than KellynKai. It will certainly make a difference in your learning journey the same way it has made in mine.


Startup CEO

Silicon Valley

KellynKai helped me to get an intuitive sense of the language and pronounce the tones and sounds more accurately, which were challenging before studying with KellynKai. I got from a very basic level to be able to actually use the language in conversations. I love the interactive style, which is smart, helpful and fun.



Cupertino, CA

It has REMARKABLE results! KellynKai has helped my son's High School Chinese class grade go from his worst, to a solid A in just a few months. My son now says Chinese is his easiest class, when he used to hate it. This school year is his toughest academically so it's a relief to know that KellynKai gives him the extra help that he can't get easily at school. Awesome that he can do it from home too. It's been easy to communicate with the tutors as their English is very good.



Woodside, CA

My son is doing GREAT! He has an A right now! But what is more important, is that he's gained much more confidence learning and understanding Mandarin. He's eager to learn and not wanting to give up… We appreciate the support so much! Thank you!!!



Cupertino, CA

Last summer, my daughter started her Chinese lessons with KellynKai to prepare for her High School language class. The curriculum is very interesting and engaging for my daughter. I highly recommend KellynKai since I am very happy with my daughter's progress.

*These testimonials are from real KellynKai users, the images are stock to maintain privacy.

Mission Statement

Our mission is to enable people to communicate globally and bring more peace to the world. Our technology platform makes it convenient and easy for people to gain mutual understanding of language and culture.

We are proud to be the leading online learning platform that focuses on tutoring Mandarin Chinese language and culture for individuals and companies. We work hard to help our students to communicate fluently in Chinese, to be immersed in Chinese culture, and to become global citizens.

KellynKai believes in the power of technology. With a software development team in Silicon Valley, we have created a web-based classroom, a world wide scheduling system with class reminders, an on-demand class feature, and a mobile flashcard app with personalized vocabulary.

We are a passion-driven company whose values include treating students and tutors like family, maintaining close communication to understand our students' needs, and overachieving to exceed our students' goals.

Crystal Zhu, Founder of KellynKai

Crystal Zhu, founder of KellynKai

Crystal Zhu is the founder and CEO of KellynKai Corporation. Crystal grew up in China and immigrated to the United States on a full scholarship when she was 21. After living in Wyoming, Illinois, and Texas, Crystal settled in Santa Clara, CA. Owing her passion as a curriculum writer and a Chinese language and cultural educator, Crystal founded KellynKai in 2019 in Silicon Valley.

Crystal and KellynKai have developed a unique approach to effective and convenient Chinese learning. As the CEO of KellynKai, Crystal is responsible for designing each student's learning strategy and study plan. Crystal has helped students of various backgrounds from ages 3 to 78 to build their confidence in learning Chinese and has helped them exceed their goals.