The JS Engine plugin allows users to execute JavaScript directly within their Obsidian notes through specialized code blocks. By defining a `js-engine` code block, users can write and run JavaScript code, rendering the output directly in their notes. The plugin supports features like rendering Markdown, creating structured content with a Markdown builder, and importing JavaScript files from the vault for dynamic functionality. This tool is ideal for advanced users seeking to integrate custom scripts or enhance interactivity within their notes.

The RunJS plugin enables users to execute JavaScript code directly within Obsidian, providing a seamless way to automate tasks, customize workflows, and interact with notes. Users can run code snippets embedded in markdown files or stored in dedicated script files, with support for script and module organization. The plugin offers multiple execution methods, including command palette access, ribbon icons, and autostart options. It allows the addition of custom commands for frequently used scripts.

The Code Emitter plugin transforms Obsidian into an interactive coding environment similar to Jupyter Notebooks. It allows users to execute code blocks within notes across multiple programming languages, including Python, JavaScript, TypeScript, HTML, and CSS, as well as others like Rust, Kotlin, and C++. Code can run locally via JavaScript or WebAssembly sandboxes or be processed on third-party platforms, depending on the language. This functionality is available on all platforms supported by Obsidian, including desktop and mobile. The plugin is particularly useful for developers, educators, and learners who want to integrate live coding and algorithm testing into their Obsidian workflow.