Maztr's free online Audio File Visualizer is a quick and easy tool you can use right in your browser, without downloading any software, to visualize the sound structure of your audio files. No account or login is required to use it.

Our Audio File Visualizer can show you a video illustration of your audio files and help you identify the sound waves, channels and frequencies they contain — a "visual sound video". In other words, it allows you to "see" your audio files. Please note that large files can take a few minutes to process. The video files it produces can be quite large.

Want a detailed analysis of your audio files? Click here to use our free Audio File Analyzer. We have many more free tools for your audio files. Click here to check them out.

You may also like to try our other visualizers:

• Audio Channel Visualizer
• Audio Loudness Visualizer
• Audio Waveform Visualizer

How do I use the Audio File Visualizer?

1. In the "Upload Audio File" section above, drag and drop or click to select the file from your local device.
2. If you want to change your selected audio file, hover or click the file then click "Remove".
3. Click the "Upload" button to process your audio file and display the completed Visualizer video.
4. Click the Visualizer display to play the video. You'll see play, pause and other controls if you hover over the display.
5. To see the video at the best resolution, we recommend playing it in fullscreen mode by clicking the ⛶ icon.
6. If you want to download the Visualizer video, click the "Download" button.

Why do I need to use an audio visualizer?

You can learn a lot about the structure of your audio files by viewing the output in visual form. Also, if you are uploading music to a video service such as Youtube, it allows you to add visual content that enhances the audio, rather than attaching a static image.

What information is shown in the Visualizer video?

• The Visualizer Video shows 3 live graphs playing in time with the music — a Vectorscope (stereo separation) in the top left corner, Spectrogram (frequency spectrum) in the top right corner and Waveform Viewer (amplitude) across the bottom.
• A Vectorscope shows the separation of stereo channels in an audio file. For mono recordings, a single vertical line will be shown because there is no left/right stereo separation.
• A Spectrogram shows the spectrum of sound frequencies in an audio file.
• A Waveform shows changes in a sound's amplitude over time. Amplitude is the relative strength of sound vibrations in the audio file.

Does the Audio File Visualizer have any usage limits?

Yes, the following limits apply based on your Maztr Subscription:

• No account is required to use this tool. Without an account, you have a 50MB file limit. Free and Single Accounts have this same limit.
• MP3 Accounts have a 150MB file limit.
• Pro or Plus Accounts have a 300MB file limit.
• Upgrade here if you want to increase your limits.