🎬Audio to Video Online - Turn MP3 into MP4 with a Cover Image
Most video platforms will not take a bare audio file. This tool pairs your song, podcast episode, audiobook chapter or recording with a cover image (or a solid background with a title) and renders an MP4. Landscape 16:9, square 1:1 and vertical 9:16 are all supported, and because the picture is a still, even an hour-long episode renders quickly.
Free · No sign-up · Runs in your browserLast updated:
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How to use Audio to Video
- 1Upload one or more audio files
- 2Pick a cover image or solid background, set the aspect ratio and add a title if you like
- 3Click create video and download the MP4
FAQ
- Why 1 fps — will it stutter?
- The picture never moves, so 1 fps looks exactly like 25 fps while needing far less encoding, which means faster renders and smaller files. If a platform complains about the frame rate, switch to 25 fps.
- Which platforms accept the output?
- It is a standard MP4 with H.264 video and AAC audio, which YouTube, TikTok, Instagram, Facebook and other platforms accept directly. Use 9:16 for Shorts, Reels and TikTok.
- Are my files uploaded to a server?
- No. Everything runs locally in your browser via WebAssembly. Files never leave your computer and are discarded when you close the page.
- Do I need to sign up or pay?
- No. The site is completely free, requires no account, has no usage limits and adds no watermarks.