dj - Dynamic JS File Extractor

中文 | English

dj intelligently detects dynamically loaded JavaScript files by statically analyzing website HTML and JS code, including webpack chunks, import() lazy loading, and more.

Features

• Deep analysis of website HTML and JS to extract dynamically loaded JavaScript files
• Smart detection of dynamic loading patterns: import(), require(), webpack chunks, vite preload, etc.
• Support for multiple frontend framework chunk mappings: Next.js, Nuxt.js, Vite, SvelteKit, Webpack, and more
• Automatic Source Map discovery and original source code restoration (from sourcesContent, with mappings VLQ fallback)
• Cache reuse: second run on the same site restores results from local cache with zero network requests
• TLS fingerprint impersonation with fixed Chrome profile by default — TLS fingerprint, User-Agent and Sec-CH-* headers all come from one consistent browser profile. Measured on WAF/CDN sites: rotating fingerprints gets JA3-blocked (a site answering 476 JS to fixed Chrome answered 11 to rotation), so --random-tls is opt-in
• Deterministic output: JS URLs are sorted, so the same site yields the same URL set and order on every run (stable diffs and regressions)
• HTTP/2 and HTTP/1.1 protocol auto-negotiation
• SOCKS5/HTTP/HTTPS proxy support with authentication
• Environment variable proxy configuration (HTTPS_PROXY, ALL_PROXY, NO_PROXY, etc.)
• Custom User-Agent and browser-like request headers
• Multiple output formats: text, JSON, markdown
• Three interfaces, one definition (via xyz-go): CLI (dj scan / legacy dj <url>), HTTP REST API (dj serve with /openapi.json), and MCP tool server (dj mcp stdio|sse|http)

Supported Frameworks & Loading Models

dj's extractor is verified against real build output across 74 frameworks / loading models and 572 versions.

Category	Frameworks
Bundlers (15)	webpack, webpack4, vite, vite-plus, rollup, esbuild, parcel, rsbuild, rspack, farm, mako, rolldown, systemjs, snowpack, turbopack
Microfrontend frameworks (17)	qiankun, single-spa, micro-app, wujie, garfish, icestark, piral, luigi, emp, hel-micro, native-federation, module-federation, mf-runtime, mf-vite, mf-rsbuild, webpack-mf, vite-plugin-federation
Meta frameworks / SSR (25)	nuxt, sveltekit, angular, astro, qwik, solidstart, tanstack-start, marko, react-router, remix2, redwood, analog, vike, hono, one, fresh, stencil, storybook, gatsby, cra, umi, icejs, vue-cli, modernjs, bun
Rust / WASM frontends (3)	leptos, lustre, trunk
Admin templates (12)	ant-design-pro, amis, ng-alain, jeecg, d2admin, pig-ui, tdesign-starter, vue-element-admin, vue-pure-admin, vue-vben-admin, ruoyi-vue2, ruoyi-vue3
Spec / polyfills (1)	es-module-shims

Version details (click to expand)

Bundlers (15 — expand for verified versions)

Framework	Notes	Verified versions
webpack	webpack 5 runtime chunk maps	v5.0.0 ~ v5.110.3（19 个版本）
webpack4	webpack 4 JSONP runtime	v4.33.0 ~ v4.47.0（15 个版本）
vite	dynamic import / modulepreload / prefetch / .vite manifest probe	v3.0.9 ~ v8.3.0（14 个版本）
vite-plus	Vite+ (VoidZero) vp build = Vite 8/Rolldown output + .vite manifest	v0.3.1（1 个版本）
rollup	multi-entry + dynamic import	v2.0.6 ~ v4.63.2（19 个版本）
esbuild	esbuild output	v0.14.54 ~ v0.28.2（15 个版本）
parcel	parcel output	v2.0.1 ~ v2.16.4（4 个版本）
rsbuild	rsbuild / rspack ecosystem (2.x is rspack-based)	v1.0.19 ~ v2.2.5（10 个版本）
rspack	runtime hash maps (2.x rspackChunk runtime)	v1.0.14 ~ v2.2.3（11 个版本）
farm	Rust bundler	v0.1.1 ~ v1.0.5（5 个版本）
mako	ByteDance mako	v0.4.17 ~ v0.11.15（8 个版本）
rolldown	rolldown	v0.9.2 ~ v1.2.8（11 个版本）
systemjs	SystemJS output	v0.21.6 ~ v6.15.1（17 个版本）
snowpack	unbundled ESM output	v2.18.5 ~ v3.8.8（10 个版本）
turbopack	Next.js turbopack	v15.3.9 ~ v16.3.5（8 个版本）

Microfrontend frameworks (17 — expand for verified versions)

Framework	Notes	Verified versions
qiankun	qiankun 2.x (incl. vite-plugin-qiankun)	v2.1.1 ~ v2.10.16（10 个版本）
single-spa	root config	v4.4.4 ~ v6.0.3（12 个版本）
micro-app	micro-app	v0.1.0 ~ v0.8.11（8 个版本）
wujie	wujie	v1.0.29 ~ v2.1.0（3 个版本）
garfish	garfish	v1.0.26 ~ v1.19.12（10 个版本）
icestark	icestark	v1.0.0 ~ v2.8.4（11 个版本）
piral	piral	v1.1.0 ~ v1.12.2（12 个版本）
luigi	luigi	v0.0.9 ~ v1.7.11（10 个版本）
emp	@efox/emp	v1.0.34 ~ v1.10.2（11 个版本）
hel-micro	hel-micro	v3.5.16 ~ v4.15.3（10 个版本）
native-federation	native federation	v0.9.1 ~ v4.4.1（11 个版本）
module-federation	@module-federation/enhanced	v0.0.17 ~ v2.8.2（11 个版本）
mf-runtime	MF runtime only	v2.1.0 ~ v2.8.2（8 个版本）
mf-vite	MF vite integration	v1.13.7 ~ v1.20.7（8 个版本）
mf-rsbuild	MF rsbuild plugin	v2.1.0 ~ v2.8.2（8 个版本）
webpack-mf	webpack built-in MF	v5.98.0 ~ v5.108.4（10 个版本）
vite-plugin-federation	Origin.js federation	v0.0.3 ~ v1.4.1（6 个版本）

Meta frameworks / SSR (25 — expand for verified versions)