What's New in React 19: Actions, use() and More
React 19 is mostly about making async work, especially forms and data mutations, simpler. Here are the features you'll use most, with short...
Free tutorials & developer tools
Tech concepts, explained simply.
Clear, practical tutorials on PHP, Laravel, MySQL, JavaScript, Vue JS, Angular, REST APIs, Git and more — plus handy tools to speed up your everyday development work.
Animated examples of SQL, Laravel, PHP and JavaScript code being written and run, from Technical Simple tutorials.
0:00 / 1:00
Fresh from the blog
Latest articles
Next.js App Router Fundamentals: Layouts, Pages and Routing
In the App Router, folders define routes and special files define what renders for them. Once you know the handful of file conventions, the...
TypeScript for JavaScript Developers: The Essentials
TypeScript is JavaScript with types. The types are checked at build time and then removed, so the code that runs is plain JavaScript. What y...
Tailwind CSS v4: What Changed and How to Upgrade
Tailwind CSS v4 is a ground-up rewrite. The biggest change for day-to-day work: configuration moves from tailwind.config.js into your CSS fi...
Free utilities
Developer tools
Quick tools that run in your browser — nothing to install.
HTML Editor
Write HTML and preview it live, with formatting, import and export.
Open toolJSON Formatter
Format, validate, minify and sort JSON with exact error positions.
Open toolRegex Tester
Test regular expressions with live highlighting and capture groups.
Open toolCase Converter
Convert text to UPPER, lower, Title, Sentence and more in one click.
Open toolBase64 Encoder
Encode and decode Base64 with full Unicode and URL-safe support.
Open toolJWT Decoder
Inspect a JSON Web Token’s header, payload and expiry.
Open toolCron Helper
Explain cron schedules in plain English and see the next runs.
Open toolHash Generator
Generate MD5, SHA, PBKDF2 and Bcrypt hashes right in your browser.
Open toolTodo List
A simple, private task list that remembers your work between visits.
Open toolNever miss a new tutorial
Join the newsletter and get new articles delivered to your inbox. Free, and you can unsubscribe anytime.