Looking for the best YouTube to MP3 converter? Two of the most popular options are FastAudio and YTMP3. This comparison covers the key differences to help you decide which one to use.
| Feature | FastAudio | YTMP3 |
|---|---|---|
| Price | Free | Free |
| Max MP3 quality | 320kbps | 320kbps |
| Ads | None | None |
| Registration required | No | No |
| YouTube support | Yes | Yes |
| YouTube Shorts support | Yes | Yes |
| TikTok support | Yes | No |
| Instagram support | Yes | No |
| Facebook support | Yes | No |
| MP4 video download | Coming soon | Yes |
| Mobile optimized | Yes | Yes |
| Files stored on server | No — deleted after download | No — deleted after download |
| Third-party scripts | None | None |
The biggest difference between FastAudio and YTMP3 is platform support. YTMP3 is a YouTube-only converter — it handles YouTube videos and Shorts very well, but it does not support TikTok, Instagram, or Facebook. FastAudio supports all of these platforms from a single tool. If you regularly download audio from multiple platforms, FastAudio is the more versatile choice.
Both FastAudio and YTMP3 support MP3 output up to 320kbps, which is the highest standard bitrate available. Since both tools convert from the same YouTube source audio (which YouTube provides at up to 128–256kbps), the output quality from both converters is essentially identical at any given bitrate setting.
Both FastAudio and YTMP3 operate without ads, which is a major advantage over many other converters. Neither tool stores downloaded files on their servers — files are deleted immediately after your download completes, protecting your privacy.
Both converters process most YouTube videos in under 30 seconds. Shorter videos and YouTube Shorts typically convert in under 10 seconds on both platforms. Conversion speed depends more on the length of the video and your internet connection than on which tool you use.
Use FastAudio if you download audio from TikTok, Instagram, or Facebook in addition to YouTube — or if you want a single tool that handles all platforms. Use YTMP3 if you only ever convert YouTube videos and want a well-established, YouTube-focused tool.
Both are free, both are safe, and both produce excellent results. You can use FastAudio right now without leaving this page.
FastAudio supports more platforms (TikTok, Instagram, Facebook) while YTMP3 is YouTube-only. Both offer the same 320kbps quality and are ad-free.
YTMP3 is a reputable converter considered safe. It does not store files and runs without malware.
FastAudio supports YouTube, TikTok, Instagram, Facebook, and more. YTMP3 focuses on YouTube only.
Yes. Both are free tools you can use interchangeably depending on your needs.