Home · MP3 to MP4 Converter
MP3 to MP4 Converter
Convert MP3 to MP4 online — and make it look good with an audio-reactive visualizer or your cover art. Free to preview.
Free to preview · No watermark on export with credits · MP4 up to Full HD
To convert MP3 to MP4, upload the MP3 and export an MP4. With Music Visualizer you can also add an audio-reactive visualizer and a background, so the MP4 has visuals that move with the sound instead of a blank frame. Preview a free 30-second sample before exporting.
How it works
Step 1
Upload your MP3
Drop in the MP3 you want as an MP4.
Step 2
Add visuals (optional)
Add a spectrum, waveform, or particle visualizer and a cover image so the MP4 looks good.
Step 3
Export MP4
Preview a free sample, then export your MP4 for YouTube and social.
A better MP3 to MP4
Not just a blank video
Most converters give you audio over a black screen. Add a reactive visualizer instead.
Your cover art
Drop in album art or a video background behind the visualizer.
Any length
Convert a single track or an hour-long mix in one render.
Ready to upload
H.264 MP4 in 16:9, 1:1, or 9:16 for every platform.
Convert MP3 to MP4
Make it look good with a visualizer. Free to preview; export in HD without a watermark using credits.
FAQ
How do I convert MP3 to MP4?
Upload the MP3 and export an MP4. Music Visualizer lets you add a reactive visualizer and cover art so the MP4 is worth watching, with a free 30-second preview first.
Is it free?
You can create and preview a 30-second sample for free. Full-length and no-watermark MP4 exports use credits.
Can I export without a watermark?
The free on-device sample is watermarked. Paid credit renders export a clean MP4 with no watermark, at up to Full HD.
Do I need editing skills or After Effects?
No. There is no timeline and no keyframes — you pick a style and the audio reactivity is automatic. It runs in your browser, so there is nothing to install.
What formats and resolutions can I export?
H.264 MP4 in 16:9, 1:1, or 9:16 at 720p or Full HD 1080p (higher tiers returning soon) — ready for YouTube, Spotify Canvas, Reels, and TikTok.