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The open-source JavaScript, TypeScript, and WebAssembly runtime for the modern web.

Deno is a modern runtime environment built on V8, Rust, and Tokio, designed to provide a secure and efficient platform for executing JavaScript, TypeScript, and WebAssembly code. It offers a built-in toolchain, including a linter, test runner, and code formatter, eliminating the need for external dependencies. Deno emphasizes security by default, requiring explicit permissions for file system, network, and environment access. It seamlessly integrates with web standard APIs and supports Node.js compatibility through npm and import maps. The Deno Deploy platform allows for serverless deployment with features like OpenTelemetry, Deno KV, and a command-line interface. Deno Sandbox enables secure execution of untrusted code in isolated Linux microVMs, ideal for AI agents and dynamic workloads.
Deno is a modern runtime environment built on V8, Rust, and Tokio, designed to provide a secure and efficient platform for executing JavaScript, TypeScript, and WebAssembly code.
Explore all tools that specialize in secure code execution. This domain focus ensures Deno delivers optimized results for this specific requirement.
Deno's permission model restricts file system, network, and environment access by default, preventing supply chain attacks and ensuring secure code execution.
Deno includes a linter, test runner, code formatter, and bundler, reducing the need for external dependencies and simplifying the development workflow.
Deno natively supports TypeScript with zero configuration, enabling type safety and improved code maintainability.
Deno implements web standard APIs, maximizing code reuse between browser and server and future-proofing code.
Deno Sandbox provides secure, isolated VMs for running untrusted code, ideal for AI agents and dynamic workloads, with strict network policies and secret management.
Install the Deno runtime using the provided installation script.
Create a new TypeScript or JavaScript file.
Import necessary modules using URL imports or npm specifiers.
Run the script using the `deno run` command.
Configure permissions as needed for file, network, and environment access.
Utilize the built-in linter, formatter, and test runner for code quality and testing.
Deploy the application to Deno Deploy for serverless execution.
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