I Built a Free yt-dlp Web Frontend That Supports 1000+ Sites — Here's How

A few weeks ago I got tired of every video downloader site being a minefield of fake download buttons, popup ads, and malware redirects. So I built dltkk.to — a clean, no-BS web frontend for yt-dlp that anyone can use without installing anything. Here's what I built, how it works technically, and what I learned shipping it. What It Does dltkk.to is a browser-based video downloader powered by yt-dlp on the backend. Paste any video URL, pick a format, hit download. That's it. Supported formats: MP4, MP3, FLAC, WAV, AAC, MKV, GIF, and thumbnail extraction. Supported platforms: Anything yt-dlp supports — TikTok, YouTube, Twitter/X, Instagram, Twitch, Vimeo, Facebook, and 1000+ more. Extra features: Batch mode — paste up to 10 URLs at once, processes sequentially GIF conversion — converts video to optimized GIF via ffmpeg No ads, no watermark, no signup — ever The Stack Simple Node.js + Express backend, plain HTML/CSS/JS frontend. No frameworks, no build step. Runs on a single VPS. javascri