Pterocos s an A free, live HTML/CSS/JS playground with AI chat, Monaco editor & preprocessors

It's Open Source?

Yes, its a A Opensource free browser-based coding environment for front-end developers. Write HTML, CSS, and JS with a VS Code-grade editor (Monaco), live preview, SCSS/TypeScript/Babel support, and an AI chat assistant for debugging and suggestions. All projects save to local storage. Free forever – no account needed. source code: https://github.com/aminkheddache-dotcom/Pterocos

About

Pterocos is a browser-based development environment for HTML, CSS, and JavaScript, designed for front-end developers who want a powerful, no-cost tool without creating an account. At its core, it integrates the Monaco editor (the same engine used by VS Code), providing autocomplete, syntax highlighting, multi-tab support, and a live preview pane. It also supports preprocessors like SCSS, TypeScript, and Babel, making it suitable for modern workflows.

One of its standout features is an AI chat assistant that can help debug code, suggest fixes, or generate UI components. All projects and backups are saved to your browser's local storage, meaning you retain full control, but be aware that clearing your cache will erase them.

Privacy is a major focus.

While still in beta, Pterocos is free forever, requires no login, and is open source. You can contact the developer via Discord or email. For anyone needing a lightweight, privacy-respecting coding playground with AI assistance, Pterocos offers a compelling, transparent solution.

Features

You can make your code public so you can share it between your friends and you get Statistics and like/dislike from users

AIchat can help you save time on the ui and such by building or fixing and ... etc

Opensource

Privacy (ability to make private codes and share it if you want.)

Ability to use multiple tabs (each one has html css js tabs)

multiple projects

Is it free?

Yes, pterocos.eu.org is free for anyone to use

Privacy Policy?

We have privacy policy can be found at https://pterocos.eu.org/

at the home page

Questions?

Contact us at email: aminekhd@pterocos.eu.org

or the discord server: https://discord.gg/9UvBaspp9C

Conclusion & Review

Thanks for reading and if you have a review send it in here https://www.trustpilot.com/review/pterocos.eu.org