Audio to MP3

How to use this tool

1. Choose up to four supported files from your device.
2. Adjust output settings. For GIF, choose a short segment and width.
3. Run the conversion, preview the result and download each successful file.

Keep the original files and inspect the exported result before publishing or sharing it. Processing happens on this device; engine and library assets download when needed.

Frequently asked questions

Which audio track is exported?

The first audio stream is used. A video without audio cannot produce an MP3. Other tracks, subtitles and attached artwork are omitted.

Does MP3 conversion improve audio?

No. MP3 is lossy; re-encoding compressed sources can reduce quality. Higher bitrate increases size and cannot restore missing detail.

Are my files uploaded?

No. FFmpeg runs on your device. The engine assets download on first use; your selected media stays in browser memory. Each file is limited to 150 MiB and each batch to 250 MiB.

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