Runno

Embed interactive, runnable code examples on your website — runs client-side in the browser.

runno.dev

Verified API available

Quick facts
What is it	Embed interactive, runnable code examples on your website — runs client-side in the browser.
Pricing	Unknown
Platform	Web Application
API	Yes
Best for	creating interactive coding tutorials, embedding runnable examples in documentation
Domain registered	2021

Data updated Aug. 1, 2026

What does Runno do?

Runno is a tool that lets you add interactive, runnable code snippets directly to your website. You install it as an npm package, add a few web components to your HTML, and your readers can immediately run, edit, and experiment with code examples in languages like Python, Ruby, and JavaScript. The entire process happens in the user's browser, powered by WebAssembly and the WebAssembly System Interface (WASI), so there's no need for a backend server or for users to install any software.

It works by downloading WebAssembly binaries for each programming language and executing them in a sandboxed Web Worker with an in-memory file system. This setup mimics a Unix-like terminal environment. The tool is highly customizable; you style the code editor and terminal output with your own CSS and control the behavior with JavaScript. It's built on open-source projects like XTerm.js for the terminal and CodeMirror for the code editor.

Runno is most useful for educators, technical writers, and developers who create tutorials, documentation, or coding courses. It removes a major barrier to learning by letting readers test concepts immediately. A blogger explaining a Python function can embed a working example, and a documentation site can provide live SQL queries. It turns static code samples into hands-on learning tools.

Non-AI Developer Tools — Other

#code execution#developer tools#education#webassembly#web components

Key features

What makes it stand out

Runs code client-side in the browser using WebAssembly/WASI

Supports multiple languages like Python, Ruby, SQLite, PHP, JavaScript, C, and C++

Customizable with HTML, CSS, and JavaScript via Web Components

No server required — code executes in a sandboxed Web Worker

Users can edit and re-run embedded code examples

Who is Runno for?

Who benefits most from this tool

creating interactive coding tutorials

embedding runnable examples in documentation

building educational coding platforms

Trust & presence

Domain Domain registered 2021

Similar tools

Runable Documents

AI platform that creates slides, web apps, documents, videos, and more from simple text commands

Webiny Developer Tools

AI-programmable CMS platform for developers — build APIs, automate workflows, and extend functionality using AI prompts.

Xano No-Code&Low-Code

Xano is the unified backend for the AI era, built to move beyond vibe-coded prototypes into production-grade applications. More than a database, it lets you build and orchestrate apps, AI agents, and MCP servers in one secure, scalable platform with static hosting. Skip stitching together databases, APIs, auth, integrations, and infrastructure, and focus on building your backend with AI speed, visual logic, and code in your IDE, all from one place.

make · n8n

Editor.do Developer Tools

All-in-one web-based code editor with real-time preview, hosting, free SSL, and AI assistance for building static websites.

XAML.io Developer Tools

Online XAML designer and editor — build, edit, and debug user interfaces for WPF and cross-platform apps in your browser.

Quino Lesson Plan Generator

AI tool for educators that turns academic materials into interactive learning games and automated lesson plans.

Flowblock Developer Tools

AI-powered code editor for Webflow with intelligent code prediction, autocompletion, and built-in CDN hosting

rnbw Website Designer

AI-powered design editor that lets you visually edit HTML, CSS, and JavaScript with real-time code synchronization.