Audio converter
Free MP4 to MP3 Converter Online
Upload MP4 videos with a clean, mobile-friendly tool page. This version validates uploads, converts them with FFmpeg, and stores the MP3 temporarily for download.
View all toolsDrop your MP4 file here
Maximum file size: 200 MB
No file selected
Upload an MP4 file to convert it to MP3.
How it works
The upload flow is simple, secure, and built for real MP4 to MP3 conversion.
- 1Upload or drag an MP4 video into the converter box.
- 2The upload endpoint validates file type, extension, size, and MP4 structure.
- 3The file is converted to MP3 with FFmpeg and made available through a temporary download link.
FAQ
Clear answers help visitors understand the current frontend-only state.
Is MP4 uploading live yet?
Yes. MP4 upload and MP3 conversion are active when FFmpeg is installed on the server.
What is the maximum file size?
The interface shows a maximum file size of 200 MB.
Can I drag and drop MP4 files?
Yes. The upload box supports drag and drop, along with a standard file picker.
Will the downloaded MP3 be real right now?
Yes. The download button is enabled only after FFmpeg finishes creating the MP3 file.
Guide
Convert MP4 video audio to MP3
An MP4 to MP3 converter is useful when you only need the audio track from a video file, such as a lecture, voice note, interview, or recording.
MP3 files are widely supported across phones, browsers, media players, and editing apps. A focused converter page gives users a direct path from video upload to audio download without extra options getting in the way.
This YourTeck Tools page now runs a production-style conversion pipeline locally: upload, validate, convert, delete the source MP4, and keep the generated MP3 available temporarily.