Progressive vs Adaptive — The One Idea That Explains Everything
YouTube serves two stream kinds. Progressive = video + audio in one file (360p, sometimes 480p/720p) — one click, always plays. Adaptive = video-only and audio-only tracks (1080p and up) that your player stitches live — downloading these means fetching two files and merging them.
📊 Bottom line
Every honest one-click downloader tops out at 720p MP4. "1080p MP4 one-click" buttons either merge server-side (slow, expensive) or lie. We chose honesty: direct 720p max, plus real server-side MP3 for Pro.
Real File Sizes (10-Minute Video)
| Format | Size (10 min) | Tier |
|---|---|---|
| MP4 360p | 30–60 MB | Free |
| MP4 480p | 60–100 MB | Free |
| MP4 720p | 100–200 MB | Pro |
| MP3 192kbps | ~14 MB | Pro |
How Our Pro MP3 Extract Works
When you tap Extract MP3, our server fetches YouTube's highest-quality audio track and converts it to 192kbps MP3 with FFmpeg, streaming the result straight to you — nothing stored. Long videos take about a minute. The 192kbps rate is the sweet spot: transparent quality at small size.
Quality Scams to Ignore
- "8K Ultra HD one-click" — no. Just no.
- "320kbps MP3 from YouTube" — YouTube's audio tops out around 160kbps opus; 320kbps files from it are upscaled, not better.
- Giant "DOWNLOAD 1080p" buttons that install extensions — the extension is the product (adware), not the download.
FAQ
Q: Will 720p look bad on my TV?
Acceptable for casual viewing; for movie nights, use YouTube itself or Premium offline. Downloads are best for portable/offline use.
Q: Why does the same video show different sizes on different days?
YouTube re-encodes and rotates CDNs; bitrates drift slightly. Totally normal.
