diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..a33393e
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,2 @@
+PORT=3000
+# YT_DLP_PATH=/src/yt-dlp
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3224a90
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,144 @@
+# Created by https://www.toptal.com/developers/gitignore/api/node
+# Edit at https://www.toptal.com/developers/gitignore?templates=node
+
+### Node ###
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional stylelint cache
+.stylelintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variable files
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+.temp
+
+# Docusaurus cache and generated files
+.docusaurus
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+### Node Patch ###
+# Serverless Webpack directories
+.webpack/
+
+# Optional stylelint cache
+
+# SvelteKit build / generate output
+.svelte-kit
+
+# End of https://www.toptal.com/developers/gitignore/api/node
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..d14553a
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,16 @@
+FROM node:22-slim
+
+# yt-dlp installieren
+RUN apt-get update && apt-get install -y curl ca-certificates \
+ && curl -L https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp -o /usr/local/bin/yt-dlp \
+ && chmod a+rx /usr/local/bin/yt-dlp \
+ && apt-get clean && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+COPY package.json package-lock.json* ./
+RUN npm ci || npm i
+COPY . .
+
+ENV PORT=3000y
+EXPOSE 3000
+CMD ["npm","start"]
diff --git a/README.md b/README.md
index 90062c1..3ae2e14 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,103 @@
-# vrc-ytdlp-export
\ No newline at end of file
+# vrc-ytdlp-resolver
+
+A small web tool that resolves direct playable video URLs from YouTube using `yt-dlp`.
+This is useful for VRChat world video players that sometimes fail to play YouTube links due to bot protection or signature restrictions.
+
+Instead of relying on in-world extraction, this tool resolves the video **server-side** and outputs a temporary direct streaming link (`*.googlevideo.com`).
+You can then paste this link into a VRChat video player that accepts raw media URLs.
+
+---
+
+## ✨ Features
+
+- Resolve YouTube watch URLs into playable direct video URLs
+- Prefers **progressive MP4 (H.264 + AAC)** for VRChat compatibility
+- Automatically falls back to adaptive video + audio streams if required
+- Web UI for easy usage
+- Shows:
+ - **Local `yt-dlp` version**
+ - **Latest available `yt-dlp` version from GitHub**
+ - Update availability notification
+
+---
+
+## 📦 Requirements
+
+- Node.js **18+**
+- `yt-dlp` installed and available in the system PATH
+ (or specify a custom path via `YT_DLP_PATH`)
+
+---
+
+## 🧱 Installation
+
+```bash
+git clone https://github.com/MrUnknownDE/vrc-ytdlp-resolver
+cd vrc-ytdlp-resolver
+npm install
+````
+
+Make sure `yt-dlp` is installed:
+
+```bash
+# Linux / Mac
+curl -L https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp -o yt-dlp
+chmod +x yt-dlp
+sudo mv yt-dlp /usr/local/bin/
+
+# Windows (PowerShell)
+winget install yt-dlp.yt-dlp
+```
+
+(Optional) Set a custom path:
+
+```bash
+export YT_DLP_PATH="/path/to/yt-dlp"
+```
+
+---
+
+## 🚀 Run
+
+```bash
+npm run dev
+```
+
+The web interface will be available at:
+
+```
+http://localhost:3000
+```
+
+---
+
+## 🐳 Docker
+
+```bash
+docker build -t vrc-ytdlp-resolver .
+docker run --rm -p 3000:3000 vrc-ytdlp-resolver
+```
+
+---
+
+## 🔧 Usage
+
+1. Open the web UI.
+2. Paste a YouTube watch link.
+3. Click **Resolve**.
+4. Copy the direct playback URL.
+5. Paste it into your VRChat video player.
+
+> ⚠️ Direct streaming URLs are temporary.
+> They may expire after several minutes or hours.
+> If playback stops later, simply resolve again.
+
+---
+
+## ⚠️ Disclaimer
+
+This tool **does not download or store media.**
+It only extracts direct streaming URLs that YouTube already provides for playback.
+
+Respect YouTube’s Terms of Service and copyright laws.
+Do not use this tool for piracy.
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..8c47596
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,916 @@
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+ }
+ }
+ }
+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..4a05a28
--- /dev/null
+++ b/package.json
@@ -0,0 +1,15 @@
+{
+ "name": "vrc-ytdlp-export",
+ "version": "1.0.0",
+ "private": true,
+ "type": "module",
+ "scripts": {
+ "dev": "node src/server.js",
+ "start": "NODE_ENV=production node src/server.js"
+ },
+ "dependencies": {
+ "express": "^4.21.1",
+ "morgan": "^1.10.0",
+ "p-limit": "^6.1.0"
+ }
+}
diff --git a/public/index.html b/public/index.html
new file mode 100644
index 0000000..046af37
--- /dev/null
+++ b/public/index.html
@@ -0,0 +1,128 @@
+
+
+
+
+
+
+ VRChat YouTube Resolver
+
+
+
+
+
+
+ yt-dlp version: loading…
+
+
+
+
+
+
+
+ Tip: Prefer a “Direct stream” (single URL). If you only get “Adaptive streams,” many world players
+ won’t accept separate video+audio URLs unless they have a proxy/muxer.
+
+
+
+
+
+
\ No newline at end of file
diff --git a/src/server.js b/src/server.js
new file mode 100644
index 0000000..383f34b
--- /dev/null
+++ b/src/server.js
@@ -0,0 +1,177 @@
+// /src/server.js
+import express from "express";
+import morgan from "morgan";
+import { spawn } from "node:child_process";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import https from "node:https";
+import pLimit from "p-limit";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+const app = express();
+app.use(morgan("tiny"));
+app.use(express.json());
+app.use(express.urlencoded({ extended: true }));
+app.use(express.static(path.join(__dirname, "..", "public")));
+
+const YT_DLP = process.env.YT_DLP_PATH || "yt-dlp";
+const limit = pLimit(2); // simple per-process concurrency limit
+
+// ---- Version detection & refresh (local + latest from GitHub) ----
+let localYtDlpVersion = "unknown";
+let latestYtDlpVersion = null;
+
+function fetchLatestYtDlpVersion() {
+ return new Promise((resolve, reject) => {
+ https.get(
+ {
+ hostname: "api.github.com",
+ path: "/repos/yt-dlp/yt-dlp/releases/latest",
+ headers: { "User-Agent": "vrc-ytdlp-webtool" }
+ },
+ (res) => {
+ let data = "";
+ res.on("data", (d) => (data += d));
+ res.on("end", () => {
+ try {
+ const json = JSON.parse(data);
+ const tag = (json.tag_name || "").toString().trim();
+ if (!tag) return reject(new Error("No tag_name in GitHub API response"));
+ resolve(tag.replace(/^v/i, ""));
+ } catch (e) {
+ reject(e);
+ }
+ });
+ }
+ ).on("error", reject);
+ });
+}
+
+async function detectLocalYtDlpVersion() {
+ return new Promise((resolve) => {
+ const child = spawn(YT_DLP, ["--version"]);
+ let out = "";
+ child.stdout.on("data", (d) => (out += d.toString()));
+ child.on("close", () => resolve(out.trim() || "unknown"));
+ });
+}
+
+(async () => {
+ localYtDlpVersion = await detectLocalYtDlpVersion();
+ try {
+ latestYtDlpVersion = await fetchLatestYtDlpVersion();
+ } catch {
+ // ignore on boot; we'll retry below
+ }
+ // re-check every 6 hours
+ setInterval(async () => {
+ try {
+ latestYtDlpVersion = await fetchLatestYtDlpVersion();
+ } catch {
+ // ignore errors; keep last known value
+ }
+ }, 6 * 60 * 60 * 1000);
+})();
+
+// ---- Core: resolve direct media URL via yt-dlp ----
+async function resolveDirectUrl(inputUrl) {
+ const formatSelector =
+ // 1) Progressive MP4 with audio (H.264 + AAC), https
+ "best[acodec!=none][vcodec*=avc][ext=mp4][protocol*=https]/" +
+ // 2) Any progressive with audio
+ "best[acodec!=none][protocol*=https]/" +
+ // 3) Anything with audio (may be HLS/DASH)
+ "best[acodec!=none]/" +
+ // 4) Fallback best
+ "best";
+
+ const json = await execJson([
+ "-J",
+ "-f",
+ formatSelector,
+ "--no-warnings",
+ "--no-playlist",
+ inputUrl
+ ]);
+
+ // Case A: yt-dlp returns a single playable URL (progressive)
+ if (json.url) {
+ return { url: json.url, note: "Direct stream (single URL)." };
+ }
+
+ // Case B: adaptive (separate video/audio)
+ if (Array.isArray(json.requested_formats) && json.requested_formats.length) {
+ const vid = json.requested_formats.find((f) => f.vcodec && f.acodec === "none");
+ const aud = json.requested_formats.find((f) => f.acodec && f.vcodec === "none");
+ if (vid?.url && aud?.url) {
+ return {
+ url: vid.url,
+ audioUrl: aud.url,
+ note:
+ "Adaptive streams (separate video/audio). Many in-world players expect a single URL."
+ };
+ }
+ }
+
+ throw new Error("Could not extract a playable URL.");
+}
+
+function execJson(args) {
+ return new Promise((resolve, reject) => {
+ const child = spawn(YT_DLP, args, { stdio: ["ignore", "pipe", "pipe"] });
+ let out = "";
+ let err = "";
+
+ child.stdout.on("data", (d) => (out += d.toString()));
+ child.stderr.on("data", (d) => (err += d.toString()));
+
+ child.on("close", (code) => {
+ if (code !== 0) {
+ return reject(new Error(`yt-dlp exited with ${code}: ${err || out}`));
+ }
+ try {
+ const json = JSON.parse(out);
+ resolve(json);
+ } catch (e) {
+ reject(new Error(`JSON parse error: ${e.message}\nRaw: ${out.slice(0, 4000)}`));
+ }
+ });
+ });
+}
+
+// ---- API routes ----
+app.post("/api/resolve", async (req, res) => {
+ const { url } = req.body || {};
+ if (
+ !url ||
+ !/^https?:\/\/(www\.)?youtube\.com\/|^https?:\/\/youtu\.be\//i.test(url)
+ ) {
+ return res.status(400).json({ error: "Please provide a valid YouTube URL." });
+ }
+
+ try {
+ const result = await limit(() => resolveDirectUrl(url));
+ res.json({ ok: true, ...result });
+ } catch (e) {
+ res.status(500).json({ ok: false, error: e.message });
+ }
+});
+
+app.get("/api/version", (req, res) => {
+ res.json({
+ local: localYtDlpVersion,
+ latest: latestYtDlpVersion,
+ updateAvailable: Boolean(
+ latestYtDlpVersion &&
+ localYtDlpVersion !== "unknown" &&
+ localYtDlpVersion !== latestYtDlpVersion
+ )
+ });
+});
+
+const port = process.env.PORT || 3000;
+app.listen(port, () => {
+ console.log(`VRC yt-dlp WebTool running at http://localhost:${port}`);
+});
\ No newline at end of file