Learn Go

Why learn Go?

Go (Golang), created by Google, is one of the fastest-growing programming languages for backend development, cloud infrastructure, and DevOps. Companies like Google, Uber, Dropbox, and Twitch use Go for its simplicity, blazing-fast compilation, and built-in concurrency. Whether you want to build web servers, microservices, CLI tools, or distributed systems, Go is an excellent choice.

What you'll learn in this Go tutorial

This free, interactive Go course takes you from zero to production-ready. You'll master Go variables, data types, functions, control flow, structs, interfaces, pointers, goroutines, channels, error handling, JSON encoding, HTTP servers, testing, and packages — all by writing and running real Go code in your browser.

21 topics · 262 hands-on lessons · all levels

Go tutorial topics

1. 1Getting StartedWrite your first Go program. No setup required — just you and the editor. · 10 lessons · 10 min
2. 2VariablesStore information in your programs so you can use it, change it, and reuse it. · 10 lessons · 15 min
3. 3Data TypesEvery value in Go has a type. Learn all of them — strings, integers, floats, boo… · 14 lessons · 20 min
4. 4The fmt PackagePrint things properly. Format numbers, align text, build strings, and control ev… · 10 lessons · 15 min
5. 5Control FlowMake your program smart. Teach it to make decisions, choose between paths, and r… · 12 lessons · 18 min
6. 6LoopsStop repeating yourself. Teach your program to repeat things for you. · 12 lessons · 18 min
7. 7ArraysStore multiple values in one variable. Fixed size, same type, numbered from zero… · 12 lessons · 18 min
8. 8SlicesArrays but flexible. The collection type you will use in almost every Go program… · 16 lessons · 22 min
9. 9MapsStore and look up data by name, not by position. The key-value pair is one of th… · 12 lessons · 18 min
10. 10FunctionsStop repeating yourself. Write code once, name it, and call it anywhere. · 14 lessons · 22 min
11. 11StructsGroup related data under one name. Build the building blocks of every real-world… · 15 lessons · 28 min
12. 12PointersStop copying. Learn to work with the original. Pointers are simpler than they so… · 12 lessons · 20 min
13. 13MethodsAttach behaviour to your types. Instead of functions that take a struct, write f… · 13 lessons · 22 min
14. 14Error HandlingGo handles errors differently — and better. No exceptions, no surprises. Just va… · 13 lessons · 24 min
15. 15Packages & ModulesStop reinventing the wheel. Use Go's rich standard library and the entire open-s… · 12 lessons · 22 min
16. 16InterfacesWrite code that works with anything. Interfaces let you define behaviour without… · 13 lessons · 26 min
17. 17Testing in GoCatch bugs before your users do. Go has world-class testing built right in — no … · 12 lessons · 24 min
18. 18JSON in GoSpeak the language of the web. Marshal structs to JSON, unmarshal JSON to struct… · 12 lessons · 22 min
19. 19HTTP in GoBuild web servers and make HTTP requests. Go's net/http package is all you need … · 12 lessons · 26 min
20. 20ConcurrencyDo multiple things at once. Goroutines and channels are Go's superpower — lightw… · 14 lessons · 28 min
21. 21Select & Channel PatternsGo deeper into concurrency. Timeouts, tickers, fan-in, fan-out, context, rate li… · 12 lessons · 30 min

Who is this Go course for?

Complete beginners who want their first programming language, developers switching from Python or JavaScript to a compiled language, and backend engineers preparing for Go coding interviews.