Video to MP3 Converter

Convert a video to MP3 in three steps

1. Open the video with the box above. Phone clips, screen recordings, exported edits and camera files all work.
2. Pick the MP3 quality. 192 kbps is the default and suits music and speech alike.
3. Press "Convert to MP3" and download the file when it is ready.

Picking a bitrate

Bitrate sets how much data each second of sound may use, and with it the file size.

320 kbps

The highest MP3 setting, about 2.4 MB per minute. Worth it only when the source is high quality music.

192 kbps

About 1.4 MB per minute. A sensible default for mixed content.

128 kbps

About 1 MB per minute. Plenty for speech, lectures and podcasts.

A higher bitrate cannot add quality the video's own soundtrack never had. If a video's audio was recorded or uploaded at a low bitrate, choosing 320 kbps only makes a bigger file. When the soundtrack is stored below 128 kbps, the tool suggests 128 kbps automatically.

Why MP3 and not something newer

Newer codecs such as AAC and Opus sound better at the same bitrate, but MP3 is the format every player, editor and upload form accepts without question. When the goal is "a file that just works", MP3 is still the answer. If you would rather keep the sound exactly as it is in the video, use the extract audio tool and choose M4A.

Speed

Audio encoding is fast even inside a browser. In our tests on a recent laptop, the soundtrack of a 30-minute recording converted to MP3 in under 30 seconds. The picture is never decoded, so even high-resolution video converts quickly; the time depends mostly on the length.

After the conversion

An MP3 is ready for any listening app, and for mydubly's audio to text tool if you want a transcript. Transcription costs 1 credit per minute, and new accounts get 100 free credits.

How the free converter works

The converter is ffmpeg, the open-source media toolkit, compiled to WebAssembly so it runs inside your browser tab. Your file is read straight from your disk by that engine; it is never uploaded to mydubly or anywhere else, and no account is needed.

• The engine is about 30 MB and downloads the first time you convert something. After that your browser normally keeps it.
• Large inputs are fine because the file is read in place, but the result is built in memory, so outputs are capped at about 1.5 GB.
• Speed depends on your device. Copying streams takes seconds; re-encoding video is the slow case.
• Keep the tab open until the download button appears. Closing it stops the conversion.