MVAIMusicVideoGen
PricingGet started

Free tool

Audio to Video Converter

Turn an MP3, WAV or M4A into an MP4 you can post anywhere. Add your cover art, pick a format, and choose a still image or a moving audio visualizer.

Free, no sign-up. Your file never leaves your browser.

1. Song

2. Cover image (optional)

4. Format

5. Style

Turn this song into a real music video

Upload the track and one photo of the singer. AI writes the storyboard, animates every shot and cuts it to the beat, with lip sync.

Make an AI music video

How to convert MP3 to MP4

  1. Upload your song (MP3, WAV, M4A or FLAC, up to 15 minutes).
  2. Add album art or a photo. Without one, a gradient background is used.
  3. Type the song title, choose 16:9, 1:1 or 9:16, and pick a style.
  4. Click Create MP4, then download the video when it is ready.

Which format should I choose?

FormatSizeBest for
16:91920 × 1080YouTube, X, websites
1:11080 × 1080Instagram feed, Facebook
9:161080 × 1920TikTok, Instagram Reels, YouTube Shorts

Still image or audio visualizer?

A still image keeps the file small and is the classic way to upload a full song to YouTube. The audio visualizer adds bars that bounce with the frequencies of your track, which gives viewers something moving to watch and tends to hold attention better in feeds.

For a feed where people scroll fast, motion matters even more. That is where a real music video helps: with the AI music video generator you upload the same song plus a photo of the artist, and AI plans the scenes, animates every shot and cuts them to the beat.

Private by design

Your audio and image are processed on your own device with the browser's built-in media encoder. Nothing is uploaded, so it works with unreleased tracks too.

FAQ

Is it really free with no watermark?+

Yes. The video is made in your browser, so it costs us nothing to run, and we do not add a watermark or limit how many videos you make.

Why convert audio to video at all?+

YouTube, Instagram, TikTok and X only accept video, not audio files. Pairing your song with its cover art or a visualizer is the quickest way to post a track, a beat or a podcast clip on those platforms.

Which browsers are supported?+

Chrome and Edge on a computer work best. The tool uses the WebCodecs API to encode MP4 quickly on your device; browsers without it will show a message instead of failing silently.

How long does it take?+

A still-image video of a 3-minute song is usually ready in a few seconds. The audio visualizer draws 30 frames per second, so it takes longer, typically under a minute on a modern laptop.

Is the audio quality reduced?+

The audio is encoded at a high bitrate with AAC, the codec YouTube and Instagram use (or Opus in browsers without AAC), so listeners on those platforms will hear no difference from the original.

Can I make a full music video instead of a still image?+

Yes. Our AI music video generator turns a song and one photo of the singer into a fully animated, beat-synced music video with lip sync. It uses credits, while this converter is free.

More free tools

BPM & Key FinderFind the tempo, key and Camelot code of any song, or tap along to count BPM.