# What Programming Language Is Archify Written In? Node.js and JavaScript Explained

> Discover Archify's programming language. Learn how Node.js and JavaScript power this project and ensure you have the correct Node.js version for execution.

- Repository: [tt-a1i/archify](https://github.com/tt-a1i/archify)
- Tags: internals
- Published: 2026-09-12

---

**Archify is implemented in JavaScript using ECMAScript modules and requires Node.js version 18 or higher to execute.**

The open-source repository `tt-a1i/archify` is a rendering and validation system whose entire source base consists of JavaScript code built specifically for the Node.js runtime. Understanding what programming language Archify is written in helps developers contribute effectively and deploy the tool correctly across different environments.

## JavaScript ES Modules and Node.js Runtime

According to the [`archify/package.json`](https://github.com/tt-a1i/archify/blob/main/archify/package.json) configuration, Archify declares `"type": "module"`【/cache/repos/github.com/tt-a1i/archify/main/archify/package.json#L5-L13】, confirming that the codebase uses modern ECMAScript modules rather than CommonJS. The same file specifies the engine requirement as `"node": ">=18"`【/cache/repos/github.com/tt-a1i/archify/main/archify/package.json#L5-L13】, establishing Node.js as the exclusive runtime environment.

The project's own documentation in [`README.md`](https://github.com/tt-a1i/archify/blob/main/README.md) explicitly states that *"Archify is a Node.js rendering and validation system..."*【/cache/repos/github.com/tt-a1i/archify/main/README.md#L15-L16】, confirming the JavaScript runtime dependency at the architectural description level.

## Entry Point and Core Implementation

The primary executable resides at `archify/bin/archify.mjs`, a JavaScript module that serves as the command-line interface entry point. This file imports native Node.js APIs including `fs`, `path`, and `child_process`【/cache/repos/github.com/tt-a1i/archify/main/archify/bin/archify.mjs#L1-L14】, demonstrating direct integration with the Node.js standard library for file system operations and process management.

The `.mjs` extension (ECMAScript Module JavaScript) reinforces the use of ES module syntax, allowing the use of `import` and `export` statements natively without transpilation.

## CLI Usage and JavaScript Execution

Since Archify is a Node.js application distributed via npm, you interact with the JavaScript code through the Node runtime. The following commands demonstrate how the JavaScript entry point orchestrates rendering and validation workflows:

```bash

# Install Archify globally (downloads the JavaScript package)

npx skills add tt-a1i/archify -g

# Render an architecture diagram from JSON IR

archify render architecture my-diagram.json output.html

# Validate a diagram without producing output

archify validate architecture my-diagram.json --json

```

These commands invoke the `archify.mjs` script, which processes arguments using Node.js APIs and executes the rendering pipeline entirely within the JavaScript engine.

## Key Source Files Confirming the Language Choice

| File | Significance |
|------|--------------|
| [`archify/package.json`](https://github.com/tt-a1i/archify/blob/main/archify/package.json) | Declares `"type": "module"` and Node.js `>=18` engine requirement |
| `archify/bin/archify.mjs` | Main CLI implementation written in JavaScript using ES modules |
| [`README.md`](https://github.com/tt-a1i/archify/blob/main/README.md) | Explicitly describes Archify as a "Node.js rendering and validation system" |

## Summary

- Archify is written in **JavaScript** using **ECMAScript modules** (ESM) syntax as confirmed by the [`package.json`](https://github.com/tt-a1i/archify/blob/main/package.json) configuration.
- The project requires **Node.js version 18 or higher** as specified in the `engines` field.
- The entry point `archify/bin/archify.mjs` uses native Node.js APIs including `fs`, `path`, and `child_process`.
- The codebase contains no compiled languages like TypeScript or C++ in the core runtime implementation.

## Frequently Asked Questions

### Is Archify written in TypeScript?

No, the source code analysis confirms Archify is written in vanilla JavaScript. The [`package.json`](https://github.com/tt-a1i/archify/blob/main/package.json) sets `"type": "module"` for native ES modules, and the core implementation files use standard `.mjs` JavaScript extensions without TypeScript compilation artifacts.

### What Node.js version does Archify require?

Archify requires **Node.js 18 or higher**, as declared in the `engines` field of [`archify/package.json`](https://github.com/tt-a1i/archify/blob/main/archify/package.json)【/cache/repos/github.com/tt-a1i/archify/main/archify/package.json#L5-L13】. This ensures compatibility with modern JavaScript features and stable ES module support.

### Does Archify use CommonJS or ES modules?

Archify uses **ES modules (ESM)** exclusively. The [`package.json`](https://github.com/tt-a1i/archify/blob/main/package.json) explicitly sets `"type": "module"`, and the CLI entry point uses the `.mjs` extension, confirming ECMAScript module syntax throughout the codebase rather than CommonJS `require` syntax.

### Can I run Archify without Node.js installed?

No, because Archify is fundamentally a Node.js application written in JavaScript. The executable `archify.mjs` relies on Node.js built-in modules like `fs` and `child_process`, making the Node.js runtime a mandatory dependency for any execution.