Find free alternative to LabEx for developers - 2025

100Devs - leonnoel.com

Train people underrepresented in tech for high growth careers as software engineers.

Tags: HTML, CSS, JavaScript, learning-resource

Devdocs

DevDocs is an open source API documentation browser that combines multiple docs in a single web UI.

Tags: learning-resource, documentation

clean-code-javascript

Clean Code concepts adapted for JavaScript.

Tags: learning-resource, learn-javascript

CodeAbbey

Collection of programming problems to practice solving, learn to program and code, and win certificates

Tags: learning-resource, code-practice

Codeforces

Codeforces. Programming competitions and contests, programming community

Tags: algorithm, learning-resource, code-practice

CodeGuppy

JavaScript for kids and teens

Tags: learning-resource, learn-javascript

CodeProject

Free source code and tutorials for Software developers and Architects.

Tags: community, learning-resource

Codewars

Codewars is a platform that helps you learn, train, and improve your coding skills by solving programming tasks

Tags: learning-resource, code-practice

community-contributors

Helpful docs and information for contributors to our open source Learning Lab courses - GitHub - githubtraining/community-contributors: Helpful docs and information for contributors to our open source Learning Lab courses

Tags: learning-resource, opensource

CSS-Tricks

Daily articles about CSS, HTML, JavaScript, and all things related to web design and development..

Tags: css, learning-resource

MDN Web Docs

Professional web technology references and guides

Tags: learning-resource, community

enjoycss

EnjoyCSS is an advanced CSS3 generator that allows you to get rid of routine coding.

Tags: css, learning-resource

Exercism

Learn, practice and get world-class mentoring in over 50 languages. 100% free.

Tags: learning-resource

freeCodeCamp

freecodecamp.org is a nonprofit community that helps you learn to code by building projects.

Tags: learning-resource, community

FreeFrontend

Free hand-picked HTML, CSS and JavaScript (jQuery, React, Vue) code examples, tutorials and articles.

Tags: learning-resource

Honeypot documentary

Developers video story behind a tool we use

Tags: video, learning-resource

HTML For Beginners The Easy Way

Learn how to code HTML & CSS for free at HTML.com. Weve HTML tutorials & reference guides on tags, attributes and everything else you need to master HTML.

Tags: learning-resource

The Modern JavaScript Tutorial

Modern JavaScript Tutorial: simple, but detailed explanations with examples and tasks, including: closures, document and events, object oriented programming and more.

Tags: learning-resource, learn-javascript

JavaScript Tutorial

JavaScript Tutorial provides you with many practical tutorials that help you learn JavaScript from scratch quickly and effectively.

Tags: learning-resource, learn-javascript

JS - The Right Way

A quick reference to best practices for writing JavaScript -- links to code patterns and tutorials from around the web

Tags: learning-resource, learn-javascript

Project Euler

Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve

Tags: learning-resource, code-practice, algorithm

riptutorial

l Learn programming languages with books and examples. Over 1000 topics to learn about any programming languages/software such as C#, Dapper, Entity Framework, SQL, and more!

Tags: learning-resource

Roadmap.sh

Free developer roadmaps to guide you on your path to mastery.

Tags: learning-resource

Scaling DevTools

Interviews with the world's best DevTools startups. Learn from the founders of companies like PostHog, Supabase and WorkOS.

Tags: learning-resource

SERP AI

Get Smarter & Stay up on AI

Tags: artificial-intelligence, learning-resource, data-science, machine-learning, software-list

Microsoft Learn Student Hub

Learn technical skills to prepare you for your future.

Tags: learning-resource

The Odin Project

The Odin Project is a free open source Full Stack curriculum that can be taken entirely online.

Tags: learning-resource

unhosted web apps

weekly handbook about unhosted web apps

Tags: serverless, learning-resource

VectorHub

VectorHub is a free and open-source learning hub for adding vector retrieval to machine learning projects.

Tags: learning-resource

W3 Schools

W3Schools is optimized for learning, testing, and training. Examples might be simplified to improve reading and basic understanding.

Tags: learning-resource, community

Web design lessons | Webflow University

Learn new web design techniques, overcome common web design issues, and get answers to frequently asked questions.

Tags: learning-resource

Zeal

Zeal is an offline documentation browser for software developers.

Tags: learning-resource, documentation

Codepen

The best place to build, test, and discover front-end code.

Tags: playground

Codesandbox

Where teams build faster, together. Create, share, and get feedback with collaborative sandboxes for rapid web development.

Tags: IDE, playground

Emmet Playground

Emmet is a powerful tool for expanding short CSS-like snippets of text, into code that would take longer to write by hand. Its pre-installed in every version of VS Code and Atom, and yet can easily go unnoticed

Tags: playground

Glitch

The friendly community where everyone builds the web

Tags: playground

JS Bin

A live pastebin for HTML, CSS & JavaScript and a range of processors, including SCSS, CoffeeScript, Jade and more...

Tags: playground

JSFiddle

Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.

Tags: playground

PLAYCODE.IO

The #1 JavaScript playground and sandbox to write, run and repl it. JavaScript playground is perfect for learning and prototyping javascript sandboxes. Fast. Easy to use.

Tags: ide, playground

Plunker

Plunker is the best tool to prototype, experiment, share and debug your ideas on the web platform. From idea to implementation, Plunker helps you build something quickly and frictionlessly.

Tags: playground, web-template

RunJS

JavaScript playground that evaluates your code as you type and gives instant feedback. Handy for prototyping ideas or trying out new libraries.

Tags: playground

SQLable

A suite of free database tools offering SQL formatting, code validation, regex testing, realistic fake data generation, and interactive database playgrounds.

Tags: devtools, playground

SQLite Viewer Web App

A free online SQLite Explorer, inspired by DB Browser for SQLite and Airtable. Use this web-based SQLite Tool to quickly and easily inspect sqlite files on the web.

Tags: sql, playground

TIO

Ide online

Tags: ide, playground

Trinket

Share Code from any Device. Trinket lets you run and write code in any browser, on any device.

Tags: course-builder, teaching, playground, web-development

TypeScript Playground

The Playground lets you write TypeScript or JavaScript online in a safe and sharable way.

Tags: playground