FOR THE DEVELOPER WHO WANTS TO UNDERSTAND

Small lessons.
Deeper thinking.
Better software.

Understand the why. Build the how. Short, visual courses in Java, Spring Boot, system design and AI — one clear idea at a time.

New: AI System Design in 60 Minutes, free on DigitalYogi Learn.

THE DIGITALYOGI WAYLearning, by doing
01 / UNDERSTAND

Start with a real problem

What happens when thousands of requests arrive at once?

RateLimiter.java
// One idea. Made concrete.
if (limiter.tryAcquire()) {
    handle(request);
} else {
    return tooManyRequests();
}
02 / BUILD

Make the idea work

03 / REFLECT

Understand the trade-offs

JavaSpring BootMicroservicesSystem designAIDSA

DIGITALYOGI LEARN · OUR COURSE PLATFORM

First course free
Learnby DigitalYogi

AI System Design
in 60 Minutes

Follow one shopping assistant from its first API request to a production design. Decide where time limits, retries, streaming and caching belong, ground answers with retrieval, and catch bad answers with guardrails and evaluation.

  • 8 short lessons
  • One real project
  • In English
  • Progress saved

Sign in with your email to enroll and save your progress. Next on Learn: Spring AI + RAG, then more system design and Java courses.

KB · PRACTISE WHAT YOU LEARN

Free to explore today
KBby DigitalYogi

Turn what you know
into what you can build

A practice space for system design, AI and coding patterns. Attempt a problem yourself, see the solution explained step by step with pictures, then get your answer evaluated by AI.

Free to explore. For AI evaluation, add your own API key from a supported model provider.

GO A LITTLE DEEPER

Clear paths through
complex subjects

New courses live on DigitalYogi Learn. Our earlier Spring Boot and reactive Java courses are on Udemy.

AI SYSTEM DESIGN · DIGITALYOGI LEARN · FREE

AI System Design
in 60 Minutes

Eight short lessons on one project: request path, RAG, caching and cost, agents, guardrails, evaluation and monitoring.

Start free course

SPRING AI · DIGITALYOGI LEARN · COMING SOON

Spring AI + RAG
Quickstart

Build a Spring Boot app that answers from your own documents, with real code you can run.

See what's on Learn

BACKEND DEVELOPMENT · UDEMY

Spring Boot, REST API
& Microservices

Build a foundation in Spring Boot and REST APIs, then explore microservices with Spring Cloud.

Explore the course

REACTIVE PROGRAMMING · UDEMY

RxJava 2: Reactive
Programming using Java

Understand streams of data and build asynchronous, non-blocking solutions with reactive Java.

Explore the course

New courses are on DigitalYogi Learn. Earlier courses are hosted on Udemy; current pricing and availability are shown on each course page.

THE VISION

Knowledge grows
when it's shared simply

Good teaching makes a difficult idea feel within reach.

DigitalYogi exists to make software engineering easier to understand. Start with something familiar. Explain one idea clearly. Show the code. Leave room to think.

From a short tutorial to a course on Learn, from understanding a concept to practising it in KB: the goal stays the same. Help developers build with understanding and confidence.

More about DigitalYogi ↗

KEEP YOUR CURIOSITY GOING

One idea. A little more clarity.

Explore simple, short tutorials on the DigitalYogi YouTube channel.

Watch on YouTube ↗