MP3 to WebM converter
Convert MP3 audio to WebM with a black video background, for a site or player that requires WebM.
Choose a file or drag it here
MP3, AAC, FLAC, OGG, WMA, AIFF, WAV, M4A (up to 200 MB)
- Input
- MP3 files
- 出力
- WebM
- Limit
- Up to 200 MB
- Files
- One at a time
Turn an idea into a video
Give Storybook a topic or an article link. It makes an illustrated video with narration and music.
How to convert MP3 to WebM
- 01
Choose your MP3 file
Drop it on the box or pick it from your device. The limit is 200 MB per file.
- 02
Confirm WebM
WebM is already selected in Convert to. Select Convert, and a short security check runs first.
- 03
Download the WebM
Select Download when the conversion finishes. Download links expire after one day.
More in コンバーター
All 33 toolsWhy convert MP3 to WebM?
Place an MP3 recording inside a WebM video. The converter creates VP8 black frames and an Opus soundtrack.
- Why use WebM. WebM suits web playback, embeds, and browser recordings.
- What you get. The WebM output uses VP8 video and Opus audio. Test the result in the browser or player you will use. The video is a black 1280 by 720 frame at 30 frames per second, with the sound from your audio file. It has no artwork, captions or waveform.
- 品質. Converting MP3 to WebM compresses the sound again to fit the video, which can lower its quality a little. It never improves the sound.
- Your rights. Convert only files you own or have permission to use.
MP3 vs WebM
Related file conversions
MP3 to WebM questions
Yes. It is free and needs no account.
Yes. The conversion runs on Sceneform's servers, so your file is uploaded first. Uploads are deleted after processing. Download links expire after one day.
Up to 200 MB. A larger file is rejected before it uploads, with the message "Choose a file under 200 MB."
Converting MP3 to WebM compresses the sound again to fit the video, which can lower its quality a little. It never improves the sound.
No. The converter takes one uploaded file at a time. It does not read links, and it has no bitrate, resolution, trim, crop or batch controls. The WebM output uses VP8 video and Opus audio. Test the result in the browser or player you will use.
The WebM output uses VP8 video and Opus audio. Test the result in the browser or player you will use. The video is a black 1280 by 720 frame at 30 frames per second, with the sound from your audio file. It has no artwork, captions or waveform.
Test the WebM in the intended browser or player. Check speech and music after the audio changes from MP3 to Opus.