Deno (software)

Deno
	Logo used since 2024
Original author(s)	Ryan Dahl
Developer(s)	Deno Land Inc and contributors
Initial release	May 13, 2018
Stable release	2.2.11 / 18 April 2025
Repository	github.com/denoland/deno
Written in	TypeScript, JavaScript, Rust, C++ (V8 bindings)
Operating system	Linux, macOS, Microsoft Windows
Type	Runtime environment
License	MIT License
Website	deno.com

Deno (/diːnoʊ/^[5]) is a runtime for JavaScript, TypeScript, and WebAssembly that is based on the V8 JavaScript engine and the Rust programming language. Deno was co-created by Ryan Dahl, the creator of Node.js^[6] and Bert Belder.^[7]

Deno explicitly takes on the role of both runtime and package manager within a single executable, rather than requiring a separate package-management program.^[5]^[8]

^ Ryan Dahl, Bert Belder (2021-03-29). "Announcing the Deno Company".
^ "Contributors, denoland/deno, Github". GitHub. Retrieved 5 July 2019.
^ "Release 2.2.11". 18 April 2025. Retrieved 24 April 2025.
^ "deno/LICENSE at main". GitHub. Retrieved 5 July 2019.
^ ^a ^b "Deno Manual". deno.com. Retrieved 2019-05-17.
^ Schiemann, Dylan (December 26, 2018). "Deno: Secure V8 TypeScript Runtime from Original Node.js Creator". InfoQ. Archived from the original on May 17, 2019. Retrieved May 17, 2019.
^ "The JavaScript ecosystem is 'hopelessly fragmented'... so here is another runtime: Deno is now a company". Archived from the original on 2024-06-25. Retrieved 2025-01-10.
^ Paul Krill (2018-06-21). "Ryan Dahl's Node.js regrets lead to Deno". InfoWorld. Archived from the original on 2019-04-14.