Free Programming Tutorials

Short, practical lessons that start from zero. Every lesson has examples — edit them and press Run to see the result right in your browser.

Python Tutorial Learn Python from scratch: syntax, variables, strings, lists, dictionaries, loops, functions, classes, files, JSON, regular expressions,… 42 lessons JavaScript Tutorial Learn modern JavaScript step by step: variables, strings, arrays, objects, functions, closures, classes, promises, async/await, JSON,… 44 lessons PHP Tutorial Learn modern PHP 8 step by step: syntax, variables, strings, arrays, functions, forms, sessions, files, JSON, classes, interfaces, traits,… 38 lessons Java Tutorial Learn Java 21 step by step: syntax, variables, strings, arrays, methods, classes, inheritance, interfaces, records, enums, collections,… 37 lessons SQL Tutorial Learn SQL step by step on a real database in your browser: SELECT, WHERE, ORDER BY, GROUP BY, joins, subqueries, CTEs, window functions,… 36 lessons TypeScript Tutorial Learn TypeScript step by step: types, interfaces, unions, narrowing, functions, classes, enums, generics, utility types, mapped and… 25 lessons HTML Tutorial Learn HTML from scratch: page structure, headings, text, links, images, lists, tables, semantic elements, forms, input validation, media,… 34 lessons CSS Tutorial Learn CSS step by step: selectors, colours, the box model, typography, units, flexbox, grid, positioning, responsive design,… 19 lessons Go Tutorial Learn Go (Golang) step by step: variables, types, slices, maps, structs, pointers, functions, methods, interfaces, generics, error… 30 lessons C# Tutorial Learn C# and .NET step by step: variables, strings, control flow, methods, classes, interfaces, records, generics, collections, LINQ,… 22 lessons C++ Tutorial Learn modern C++ (C++20) step by step: types, strings, control flow, functions, references, pointers, smart pointers, RAII, classes,… 21 lessons Terraform Tutorial Learn Terraform and infrastructure as code from scratch: providers, resources, variables, expressions, loops, state, remote backends,… 25 lessons Networking Tutorial Computer networking for developers and cloud engineers: IP addresses, subnets and CIDR, IPv6, ports, TCP, UDP, DNS, HTTP, TLS, routing,… 28 lessons DevOps Tutorial DevOps from the ground up: Linux and the shell, robust bash scripts, Git, CI/CD pipelines, deployment strategies, Docker, Compose and… 25 lessons Cloud Computing Tutorial Cloud computing for engineers, AWS first with Azure and Google Cloud equivalents: regions and zones, shared responsibility, pricing, IAM… 24 lessons Forward Deployed Engineering Tutorial What forward deployed engineers do and how to do it well: customer discovery and scoping, integrations with customer APIs (OAuth,… 24 lessons XML Tutorial XML from the basics to advanced use: syntax, well-formedness, namespaces, validation with DTD, XML Schema, RELAX NG and Schematron, XPath,… 28 lessons Tailwind CSS Tutorial Learn Tailwind CSS v4 step by step with live examples on every page: utility classes, colours, typography, spacing, flexbox, grid,… 27 lessons Laravel Tutorial Learn Laravel, the most popular PHP framework, step by step: routing, controllers, Blade templates, requests and validation, middleware,… 27 lessons Git & Command Line Tutorial Learn the command line and Git from scratch: navigating folders, working with files, searching, pipes and scripts, then Git step by step:… 20 lessons AI Engineering Tutorial Build features on large language models: tokens and context windows, messages and system prompts, API calls, streaming, clear prompts and… 25 lessons Docker Tutorial Learn Docker from your first container to production-ready images: images and layers, the container lifecycle, Dockerfiles, build caching,… 26 lessons Kubernetes Tutorial Learn Kubernetes hands-on: architecture and kubectl, pods, namespaces and labels, Deployments, rolling updates and rollbacks, scaling,… 26 lessons Bash Tutorial Learn Bash and the Linux command line step by step: navigating and managing files, pipes, grep, sed, awk, find, variables, quoting,… 30 lessons Rust Tutorial Learn Rust step by step: variables, types, functions and control flow, ownership, borrowing and lifetimes, structs, enums and pattern… 29 lessons Kotlin Tutorial Learn Kotlin step by step: variables and types, null safety, functions and lambdas, classes, data and sealed classes, extensions,… 31 lessons Swift Tutorial Learn Swift step by step: constants and variables, types and strings, control flow, functions, optionals, collections, structs and… 30 lessons htmx Tutorial Learn htmx 2 step by step with a live, clickable example on every page: requests with hx-get and hx-post, triggers, targets and swaps,… 30 lessons

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