# TypeStrong/ts-node

TypeScript execution and REPL for node.js

Repository: https://github.com/TypeStrong/ts-node
Canonical: https://ross.abutalabs.com/products/ts-node
Homepage: https://typestrong.org/ts-node
Language: TypeScript
License: MIT
License Family: permissive
Topics: typescript, repl, nodejs, runtime, ts, typescript-node, typescript-compiler, ts-node, hacktoberfest
Last push: 2024-07-18T18:14:16+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4068, "days_push": 776, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 13126, forks 547 (observed 2026-08-28T04:11:02.237404+00:00)

## What it is
ts-node is a TypeScript execution engine and REPL for Node.js that JIT-transforms TypeScript into JavaScript so it can be run directly without a precompile step. It hooks Node's module loading APIs, supporting source maps, tsconfig.json parsing, optional typechecking, native ESM, and third-party transpilers.

## Use cases
- run typescript files directly with node
- typescript repl for node.js
- execute ts scripts without compiling
- use typescript in node scripts with shebang
- integrate typescript with test runners and debuggers
- run typescript with native esm modules

## When to choose
- you want to run TypeScript on Node.js without a separate build step
- you need a TypeScript REPL or standalone script execution
- you want tsconfig.json-aware execution with source maps and optional typechecking
- you need to plug TypeScript execution into test runners, debuggers, or CLI tools

## When to avoid
- you are building for production and should precompile TypeScript ahead of time
- you only need fast transpilation without typechecking and prefer a bundler-based runner
- your project uses Deno, Bun, or another runtime with built-in TypeScript support

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: interpreter, cli, developer-tools
- domain: developer-tools, programming-languages
- platform: cli, cross-platform
- tags: typescript, repl, jit-transpilation, esm, source-maps, tsconfig, command-line, nodejs

## Member repositories
- TypeStrong/ts-node (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:02.237404+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:13:30.714810+00:00, confidence not recorded.
  - readme: https://github.com/TypeStrong/ts-node (fetched 2026-08-28T04:11:02.237404+00:00, sha b809172e7b48)
  - homepage: https://typestrong.org/ts-node (fetched 2026-08-29T08:09:20.175967+00:00, sha 6fc1888fa4e8)
  - site_page: https://typestrong.org/ts-node/docs (fetched 2026-08-29T08:09:20.181885+00:00, sha e86e25ad1f0b)
- Data as of 2026-08-30T08:39:29.467469+00:00.