Assembly Line

ts-node

TypeScript execution and REPL for node.js

ts-node is an open-source javascript runtimes project on GitHub under the MIT license (permissive), with 13k stars. It is built with TypeScript and V8. Its last push was 2 years ago.

Stars
13k
License
MIT
Activity
Quiet
Latest release
v10.9.2

Code on GitHub Website

Newer and better: tsx instead of ts-node. Use tsx for full TypeScript, or plain node for code that uses only erasable syntax.

Judgement

What it is
Developer tool
What it does
Runs TypeScript in Node.js with type checking, a REPL and source maps by compiling files on the fly.
Adopt it when
Only when an existing project depends on it; new projects use tsx or Node.js's built-in type stripping.
Watch out
No changes since mid-2024, and its ESM support has long been unreliable.
Ready for
Usable
Runs as
Command line
Built with
TypeScript
How established
Established: started 11 years ago, latest release v10.9.2.
What the license allows
You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-06 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

TypeScriptV8

Follow it down: ts-node → TypeScript → Go → runs on a microchip

How compilers were built, back to punched paper tape

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Stars, license and activity come from GitHub and refresh on a rolling hourly schedule. The project's own description is quoted as written.