Write PHP. See it run. Instantly.

A modern code editor for HTML, CSS, JavaScript and PHP that runs in your browser. Real PHP 8.3 in the live preview, with no XAMPP, no server and nothing to install. Your files never leave your computer.

Get AtheraStudio Code Code in Browser

PHP 8.3

Runs right in the preview

0

Things to install

100%

Local: your files stay on your PC

Poland

Made in

Everything you need. Nothing you don't.

Built for people who make websites, from a first landing page to a full PHP project.

Real PHP Preview

Includes, sessions, forms, redirects and SQLite run live as you type. No local server required.

Emmet Built In

Type ! and press Tab for a full HTML5 page. ul>li*3 becomes a list in a keystroke.

Smart Suggestions

Inside <head> you get SEO and meta blocks. Inside <body> you get ready-made layouts. Stop writing boilerplate by hand.

Emulation (BETA)

Run scripts with mysqli or PDO("mysql:…") directly in the preview using an in-memory SQLite engine. Automatically imports .sql dumps from your project.

Athera AI Assistant

Built-in AI assistant for code review, accessibility checks, and instant refactoring. Works with your own API keys for full privacy and cost control.

Pure Web Tech

Crafted entirely with modern HTML, CSS, and JavaScript. Zero complex desktop dependencies: just a lightning-fast, lightweight web application running smoothly right in your browser.

Fluid, Springy Motion

Smoothness & Native Comfort

Feel every interaction through fluid, springy physics where buttons squish and overlays spring smoothly into place. Built with tactile 2D depth, light rim highlights, and dynamic shadows that give components a distinctly modern, elevated character.

Delivers zero-config mobile responsiveness and instant keyboard feedback for pure speed, clarity, and daily editing comfort.

Pricing

Pay only for what you need.

For Creators

Free

Perfect for websites, landing pages and client projects, even paid ones. Free under SA-SDL, including SaaS earning under $1,500 a month.

Get Started

For SaaS Devs

$5.99/month

A commercial license for SaaS and paid services where the editor is the main product. No $1,500 revenue limit, no review needed.

Get Started

For Business

$49.99

Lifetime commercial license with written approval, priority support and permission to use the AtheraStudio name and logo in your public projects.

Get Started

SA-SDL in 30 seconds

Free, no permission needed
• Use AtheraStudio Code for any project, including paid client work, online stores and ad-supported sites.
• Modify it, fork it and adapt it to your needs.
• Offer it as a paid product or SaaS while it earns under $1,500/month.

Needs approval or a commercial license
• Selling AtheraStudio Code itself as a product, paid service or subscription that earns over $1,500/month. Submit your project within 60 days of passing the threshold, or get a paid plan.

Not allowed without permission
• Using the AtheraStudio Code name, logo or icons in public projects or as your branding.

Good to know
• Third-party components (CodeMirror, Prettier, PHP runtime, fonts) keep their own licenses.
• The software comes "as is", with no warranty.
• Attribution isn't required, but it's appreciated.

This is a summary, not the license itself. The full SA-SDL 1.0 text is the only binding version.

Start building in seconds

Open index.html, pick a folder and start coding. That's it.

Get AtheraStudio Code Code in Browser

Looking for something else?

Orbitarium Design

A complete source-available CSS and JS design system dropped in as a single file. Zero build steps, zero package managers, and zero config files to fight with.

Learn more

AtheraStudio Database

A phpMyAdmin alternative built from the ground up for security and performance. Upload the files to your hosting, sign in with your database credentials and start working.

Learn more