Best Free Code Editors

CodeSandbox is a cloud development platform that empowers development teams to code, collaborate, and ship projects of any size from any device in record time. Run your code in powerful microVMs and build anything without limits. We configure your environment for you and keep your code always ready, behind a URL. Boxy, the CodeSandbox AI coding assistant, is also now available to all Pro subscribers.

Create apps and games with just a few lines of code. Learn how to code with gamified examples. Remix example of sample code or write something new from scratch. Inspired by examples, using JavaScript as a language you'll discover how easy it is to program and create games with few lines of code. Boost your creativity with Sumocode, and let your mind build new things! Update your skills and learn how to code like a pro! There's no holding back your imagination! Learn to apply engineering concepts to create digital solutions to problems at hand! It doesn't matter if you're 5, 55, or 105, you can learn to code! Sumocode is here to help you navigate the first steps on your journey to becoming a programmer. It is easier than you think. Learn to build apps and code snippets. It is surprisingly easy with our Sumo3D code library. You can use our examples as the base or create your own apps from scratch.

The scripting layer for Webflow powered by AI. We made Slater, a code editor that harnesses the power of AI so you can take your projects to the next level. We are building Slater with feedback from the best Webflow devs in the world. Whether you're part of a team or an individual, Slater helps you supercharge your website seamlessly. Write a prompt, hit enter, and let AI do the heavy lifting. Having an AI tool built into Webflow allows you to quickly and easily generate the exact code you need for your project. Develop faster without being restricted. Work with multiple people on the same project at the same time. Write code for different pages in the same file. Copy the script from Slater, paste the script into your Webflow project, and save. You have now connected the most robust AI-powered modern coding environment you have ever used to your project. Code seamlessly without worry. Ask Slater to write code and continue to refine it with further prompts.

You don’t have to reinvent the wheel. Install native packages with rich functionality and zero need to manage dependencies, no more broken plugins. Install pre-built packages built by a world-class developer community and accelerate your time to market, with no coding required. Design cool components, actions, or formulas, package them, and use them everywhere, no need to mess around with complicated formulas. Toddle is a visual web app builder that rivals custom code but is accessible to your entire team. Professional no-code web app editor, built-in live collaboration, version control, and hosting. Toddle is a visual programming platform for building modern web applications without writing code. You may want to host your Toddle creations yourself instead of relying on Toddle's infrastructure. We offer code export via web components. Live updates when you edit your component in the editor.

Eclipse Theia is an extensible platform to develop multi-language Cloud & Desktop IDEs with state-of-the-art web technologies. Not sure whether you need a web or desktop version or both? With Theia you can develop one IDE and run it in browsers or native desktop application from a single source. The Theia project is hosted at the Eclipse Foundation, a not-for-profit corporation, and is developed by a diverse community. Unlike other "open-source" projects, projects hosted at an Open-Source Foundation are protected against single-vendor decisions against the interest of the diverse community. Theia is designed in a modular way to allow extenders and adopters customizing and extending every aspect of it. Composing a custom IDE-like product is as easy as listing all needed extensions in a package.json file. Adding new functionality by implementing your own extensions is easy, too and provides all the flexibility you need.

Boost Note is a powerful, lightspeed collaborative workspace for developer teams. Built to empower developers productivity with the most solid note taking experience for developers. Not just a GitHub flavored markdown. Put diagrams with Charts.js, Mermaid, and PlantUML in documents to maximize visibility. Choose from keymaps like Vim, over 150 themes, and more to create your own Markdown editor. Manage your documents programmatically. Grab an authentication token and access Boost Note's APIs via simple HTTP requests. Automate your documentation work with over 2,000 external tool integrations via Zapier. Collaborate with your colleagues and share information your way. Have all your teams in one shared workspace. Write documents as a team with Boost Note's realtime editing. Check revision history of a doc. You can easily roll back to one of the previous versions in one click. Keep your important data safe through granula access control based on workspace.

Use the full power of Visual Studio Code, including the editor, terminal, debugger, version control, settings sync, and the entire ecosystem of extensions. Work in the browser or hand off to your desktop. Spin up new dev environment for any sized project in seconds with prebuilt images. GitHub’s own 35GB dev image starts in under 10 seconds. Scale your cloud VMs up to 32 cores and 64GB of RAM. And with low-latency connections across four regions, you won’t even remember it’s not your local machine. Preview your changes in the browser with instant reloads (websocket and HMR support) and share private and public ports with your teammates. Every nerdy detail only you care about, configured just right, backed by your own dotfiles repository.