Sound wave generator
Turn audio into a video of its sound wave, as a line or as mirrored bars. Free, with no watermark, and nothing is uploaded.
Drop your audio
Then pick how it looks and save a video that moves with the sound. Nothing is uploaded.
MP3, M4A, WAV, FLAC, and other audio, or a video with sound.
How to make a sound wave video
Open a song, voice memo, or podcast clip and save an MP4 of its sound wave moving over a color or a picture. Choose a line that traces the wave itself, or mirrored bars as podcast clips use. This audio waveform visualizer runs in your browser, so there's no watermark and nothing is uploaded.
Step 1
Choose your audioPick a song, voice memo, or podcast clip.Step 2
Set the waveChoose a line or bars, a color, and a size.Step 3
Download the MP4Save a video of the wave moving with the sound.
What to expect
- Supported inputs
- Audio files such as MP3, M4A, WAV, FLAC, and OGG, or a video whose sound you want. Pictures can be PNG, JPEG, or WebP.
- What happens
- The wave is drawn from your sound 30 times a second, in step with it. The line shows the wave as it is, with a short trail; the bars show how loud each pitch is.
- Limits
- It makes a video, not a still image of the waveform. One sound and one picture per video.
Private by design
Your video stays on your device
Mastershot processes your file locally in this browser. It does not need to be uploaded to a server, and you do not need an account to use the tool.
- No upload
- No signup
- No watermark