Question: I'm looking for a platform where I can write and run code in the browser without setting up a development environment.

If you want a place to write and run code in your browser without having to set up a development environment, RunCode is a great choice. It's a high-performance, fully customizable cloud-based development environment that supports a wide variety of programming languages and integrates with common frameworks and databases. RunCode also features real-time workspace sharing, generative AI-powered code completion and a secure environment with passcode-protected workspaces. It's good for developers, teams and companies that need flexibility, portability and collaborative coding.

Another option is Codeium, an AI-powered coding assistant that boosts productivity with features like advanced code completion, search and chat. It supports more than 70 programming languages and integrates with popular IDEs, with features like AI-powered search, code refactoring and documentation generation. Codeium is for individual developers and teams, with tiered pricing plans that include free use for individual developers and custom pricing for enterprises.

If you want to glue your code to other services, Pipedream offers a flexible environment where you can build complex applications with low-level code control and no-code interfaces. It supports Node.js, Python, Go and Bash, and you can tap into more than 2,100 APIs with npm and PyPI packages. Pipedream is good for developers who need to run custom logic and connect to a wide range of services, and it offers several pricing tiers to accommodate different needs.

Last, Val Town is a social site where you can write and run TypeScript code in your browser. It combines serverless functions with social features so you can easily build APIs, send emails and store data. Val Town encourages community sharing and learning, and you can schedule functions with cron jobs and import NPM and Deno modules without installation. It's good for beginners and experienced developers who want to quickly write and test code in a collaborative environment.