tikok video downloader

 

/* Single-file Node.js + Express TikTok video downloader (uses yt-dlp) Usage: 1. Install Node.js (v16+ recommended) 2. Install yt-dlp on your system and make it available in PATH. - macOS/Linux: pip install -U yt-dlp OR download binary from https://github.com/yt-dlp/yt-dlp - Windows: download yt-dlp.exe and put it in the same folder or in PATH 3. In this project folder run: npm init -y npm install express body-parser cors 4. Start the server: node tiktok-downloader-server.js 5. Open http://localhost:3000 in your browser, paste a TikTok video URL and click Download. Important legal / safety note: - This tool only demonstrates how to build a downloader. Only download videos when you have the right to do so (e.g., your own content or content licensed for your use). Do NOT remove watermarks or bypass platform rules. - The maintainer / provider of this code is responsible for complying with TikTok's Terms of Service and applicable copyright law. How it works (high level): - The server serves a small HTML UI. - When user submits a TikTok URL, server spawns an external 'yt-dlp' process that fetches the media and streams the result back to the browser as a downloadable file. - Using an external tool (yt-dlp) avoids reverse-engineering private APIs in this script. You can modify this file to add authentication, rate-limiting, logging, or persistent storage. */ const express = require('express'); const bodyParser = require('body-parser'); const cors = require('cors'); const { spawn } = require('child_process'); const path = require('path'); const app = express(); const PORT = process.env.PORT || 3000; app.use(cors()); app.use(bodyParser.urlencoded({ extended: true })); app.use(bodyParser.json()); // Serve a minimal HTML page with a form app.get('/', (req, res) => { res.setHeader('Content-Type', 'text/html; charset=utf-8'); res.send(`

Advanced TikTok Video Downloader 🚀

Paste any public TikTok video link and download it directly in high quality.

Best Quality MP4 Format

⏳ Preparing your video... Please wait

Download only if you have rights. Avoid watermark removal or copyright violation.

`); }); // Download endpoint: accepts GET (for browser open) and POST (API) app.get('/download', async (req, res) => { const url = (req.query.url || '').trim(); const format = req.query.format || 'best'; if (!url) return res.status(400).send('Missing URL parameter'); streamVideoWithYtDlp(url, format, res); }); app.post('/download', (req, res) => { const url = (req.body.url || '').trim(); const format = req.body.format || 'best'; if (!url) return res.status(400).json({ error: 'Missing url' }); streamVideoWithYtDlp(url, format, res); }); function streamVideoWithYtDlp(url, format, res) { // Basic validation: only allow URLs containing tiktok.com or vm.tiktok.com if (!/tiktok\.com/.test(url) && !/vm\.tiktok\.com/.test(url)) { return res.status(400).send('Only TikTok URLs are supported by this demo.'); } // Build arguments for yt-dlp // -f best : best quality // -o - : output to stdout (pipe) // --no-playlist : avoid playlist downloads // --quiet : reduce yt-dlp logging const args = ['--no-playlist', '--quiet', '-o', '-']; if (format === 'mp4') { // prefer mp4 containers args.unshift('-f', 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]'); } else { args.unshift('-f', 'best'); } args.push(url); // Spawn yt-dlp process (must be installed on the server) const ytdlp = spawn('yt-dlp', args, { stdio: ['ignore', 'pipe', 'pipe'] }); let headersSent = false; ytdlp.stdout.on('data', (chunk) => { if (!headersSent) { // Send headers when first data chunk appears res.setHeader('Content-Type', 'application/octet-stream'); // Suggest filename const suggested = 'tiktok_video_' + Date.now() + '.mp4'; res.setHeader('Content-Disposition', `attachment; filename="${suggested}"`); headersSent = true; } // Stream chunk to client res.write(chunk); }); ytdlp.stderr.on('data', (d) => { // Collect errors for debugging console.error('yt-dlp stderr:', d.toString()); }); ytdlp.on('close', (code) => { if (!headersSent) { // No data produced — return error res.status(500).send('Failed to download the video. yt-dlp returned code ' + code); } else { res.end(); } }); ytdlp.on('error', (err) => { console.error('yt-dlp spawn error:', err); if (!headersSent) res.status(500).send('Error launching yt-dlp: ' + err.message); else res.end(); }); } app.listen(PORT, () => { console.log(`TikTok downloader server running at http://localhost:${PORT}`); });