GraphQL is a query language and runtime for APIs that lets clients request exactly the data they need.

Is GraphQL suitable for beginners?

Yes. Beginners can learn GraphQL by understanding schemas, queries, mutations, and how APIs return typed data.

What will I learn in a GraphQL course?

You can learn to create schemas, write queries and mutations, build resolvers, connect data sources, and secure GraphQL APIs.

What are GraphQL schemas and resolvers?

A schema defines the available data and operations, while resolvers contain the logic that fetches or modifies that data.

How is GraphQL different from REST?

GraphQL typically uses a single endpoint and lets clients select fields, while REST commonly provides multiple endpoints with fixed response structures.

Can GraphQL improve API performance?

It can reduce over-fetching and under-fetching by allowing precise data requests, but efficient resolver design and caching are still important.

How do you secure a GraphQL API?

Secure it with authentication, authorization at resolver level, query-depth and complexity limits, input validation, and rate limiting.

All courses > Technology and Programming > Backend development ::

Free online courses on GraphQL

Explore the best free online GraphQL courses and learn how to build efficient APIs, write queries and mutations, use schemas, resolvers, and popular tools. Study at your own pace with beginner-friendly lessons and practical projects. Enroll in free GraphQL training today and earn a certificate to showcase your skills.

Video courses

Audio courses

Free video courses

Free CourseGraphQL Learning

New

1h02m

10 exercises

Free Ebook + Audiobooks! Learn by listening or reading!

Free Ebook cover GraphQL API Design and Performance: Build Flexible Backends with Schemas, Resolvers, and Security

New

+ Load more

Exploring Advanced GraphQL Concepts: Fragments, Directives, and Subscriptions

Learn advanced GraphQL concepts—fragments, directives, and subscriptions—to build efficient, flexible, and real-time APIs for modern backend development.

Getting Started with GraphQL for Modern Backend Development

Learn how to get started with GraphQL for backend development, exploring efficient queries, flexible schemas, and practical integration strategies.

Optimizing APIs with GraphQL: A Deep Dive into Efficient Data Fetching

Learn how to optimize GraphQL APIs for efficient data fetching, reducing over-fetching, and improving backend performance with practical strategies and best practices.

Securing Your GraphQL APIs: Best Practices for Backend Development

Learn how to secure your GraphQL APIs with best practices in authentication, authorization, query limiting, and monitoring for robust backend protection.

Free Online GraphQL Courses with Free Certification

Learn GraphQL online with a curated selection of free GraphQL courses designed for students, developers, and technology professionals. These educational courses help you understand how GraphQL works, how it differs from REST, and how to create efficient APIs. Follow structured lessons, study essential concepts, complete exercises, and develop practical skills without paying tuition or enrollment fees.

Study GraphQL from Fundamentals to Practical Development

The learning content covers important topics such as schemas, types, fields, queries, mutations, resolvers, variables, fragments, subscriptions, and API integration. Depending on the course, you may also study GraphQL with JavaScript, Node.js, React, databases, or modern development frameworks. Clear explanations and practical examples make this collection useful for beginners while also helping experienced programmers expand their API development knowledge.

What You Can Learn in These Free Courses

Understand GraphQL syntax, architecture, and core API concepts.
Create queries and mutations to read, add, update, and manage data.
Design schemas, define types, and build reusable resolvers.
Connect GraphQL APIs to front-end applications and databases.
Practice through educational activities, examples, and exercises.

Free Courses, Exercises, and Free Certification

All courses listed on this page are free and include exercises that support active learning and knowledge review. After completing an eligible learning path, you can also receive free certification. The certificate can document your studies, complement your resume, and demonstrate your commitment to professional education. Course duration and syllabus may vary, allowing you to select training that matches your current experience and learning goals.

How to Access the GraphQL Courses

To access the lessons, exercises, and free certification, you must install the Cursa application. Android users can get the educational app on Google Play at Download for Android. Apple users can install it from the App Store at Download for iOS / iPhone.

Start Learning GraphQL for Free

Choose a free online GraphQL course, follow the lessons at your own pace, solve the included exercises, and strengthen your software development skills. Begin your GraphQL education today and work toward free certification through accessible, flexible, and practical online study.