Question 1

How do I convert a WebM file to MP3?

Accepted Answer

Drag your WebM file onto the box above, or click Select file to choose it. Click Convert and wait for the progress bar to finish. Click Download to save the MP3 file.

Question 2

Is MP3 the right format for my WebM video?

Accepted Answer

Choose MP3 when you want a file that plays everywhere: phones, car stereos, music apps and website upload forms. If your video has Opus sound and you want it unchanged, WebM to OGG copies it without re-encoding.

Question 3

Will the MP3 sound as good as the video?

Accepted Answer

In almost every case, yes. WebM videos usually store their sound as Opus or Vorbis. To make the MP3, MakeAudio decodes that sound and encodes it again at 320 kbps, the highest MP3 quality. Re-encoding can remove a tiny amount of detail, but the difference is very hard to hear. Converting can't make the sound better than the original. If the audio in the video is quiet, noisy or muffled, the MP3 will be too.

Question 4

How big will the MP3 file be?

Accepted Answer

The size depends only on how long the sound is, not on the size or quality of the video. At 320 kbps, each minute of sound takes a little over 2 MB. A 30-minute screen recording becomes an MP3 of about 72 MB. A 1-hour meeting recording becomes an MP3 of about 140 MB.

Question 5

Will it work with screen recordings made in the browser?

Accepted Answer

Yes. Browser screen recorders usually save WebM files with Opus sound, and they convert like any other WebM video. These recordings often don't store their length, and the file card may show only the size. That doesn't affect the conversion. A recording made without a microphone or system sound has no sound to convert. MakeAudio tells you as soon as you add it.

Question 6

Why isn't my video accepted?

Accepted Answer

This page accepts WebM files, whose names end in .webm. Most other videos are MP4, MOV or MKV files. Check the end of the file name and use the matching converter: MP4 to MP3, MOV to MP3 or MKV to MP3. Video to MP3 accepts all of these formats.

Convert WebM to MP3

Frequently Asked Questions

Frequently Asked Questions

How do I convert a WebM file to MP3?

Is MP3 the right format for my WebM video?

Will the MP3 sound as good as the video?

How big will the MP3 file be?

Will it work with screen recordings made in the browser?

Why isn't my video accepted?

Can I make the MP3 file smaller?

Does the MP3 file keep the title, artist and cover art?

Can I convert only part of the video?

Is it free, and is my video uploaded?

Can I convert a YouTube video or a link?

Does it work on phones, and is there a size limit?

What if my video has no sound or won't convert?