| Tool | Command / Setting | Output Quality | True Lossless? | | :--- | :--- | :--- | :--- | | yt-dlp | -f bestaudio --extract-audio --audio-format opus | 160k Opus | No (Best possible) | | yt-dlp | -f bestaudio --extract-audio --audio-format flac | Wasted space | No (Upscaled) | | YouTube Music | Settings > Quality > "Always High" | 256k AAC | No | | Online Converter | "Convert to FLAC" | 128k MP3 in FLAC shell | No (Fake) |

Use spectral analysis to verify you got the "best."

Before you download hundreds of FLACs from YouTube, consider this:

Recommendation: Use "yt flac best" as a sampling tool. If you love the song, buy the FLAC from Bandcamp, 7digital, or rip your own CD.

The best method for converting YouTube videos to FLAC depends on your needs, technical proficiency, and whether you prefer a one-time purchase, subscription, or free solutions. When choosing a tool, consider factors such as audio quality, ease of use, and any associated costs. For those who value simplicity, 4K Video Downloader and ClipConverter are straightforward choices. For tech enthusiasts, leveraging command-line tools offers flexibility and control over the conversion process.

Not all tools are equal. Here is the ranked list: