--- title: "MP3 to Video: Turn an MP3 Into a Waveform MP4 | Potto AI" description: "Convert MP3 to video online. Upload an MP3 and choose up to 90 seconds of it. Add a cover image and export an MP4 with a waveform and captions, ready to upload." canonical: "https://potto.ai/mp3-to-video" language: "en" dateModified: "2026-10-24" --- # MP3 to Video Converter Convert an MP3 to video for sites that only take video. Upload your MP3 and pick any 90 seconds or less. Potto adds a waveform, a picture and captions. Then export an MP4. ## Videos built from audio, by creators Music-driven motion and waveforms from other creators. Use them to judge looks. Click a poster to start playback. ### Landscape and portrait cuts scored with added music *Visual System · 0:30* - [Landscape and portrait cuts scored with added music by PalashBagchi11](https://x.com/PalashBagchi11/status/2102924409124389221) ### Chord-theory visualizer traces an E7alt progression *Visual System · 0:24* - [Chord-theory visualizer traces an E7alt progression by dadabots](https://x.com/dadabots/status/2103039181266338276) ### Glowing notes bounce along a 3D piano-roll staff in the dark *Visual System · 3:54* - [Glowing notes bounce along a 3D piano-roll staff in the dark by transitive_bs](https://x.com/transitive_bs/status/2106223134978498623) ### Paper-collage music video with a planet made of paperclips *Article · 2:22* - [Paper-collage music video with a planet made of paperclips by makevoid](https://x.com/makevoid/status/2103945695803924943) ### Abstract 15-second animation with music, no words *Visual System · 0:15* - [Abstract 15-second animation with music, no words by argbeknwn](https://x.com/argbeknwn/status/2106734468715466818) ### Lyric video with bold Japanese type and a grid of blocks *Kinetic Type · 2:08* - [Lyric video with bold Japanese type and a grid of blocks by takamasa045](https://x.com/takamasa045/status/2103791907801620931) *These pieces come from independent creators. Potto did not make them. Each card names the author and links back. Shared prompts are free to copy. Your own result will not match.* ## What an MP3 video is good for An MP3 cannot go where only video is accepted. A short MP4 can. Here is where the format change helps most. ### Demos and previews *16:9 · 1:00* Turn a demo or a mix into a clip people can watch. Choose the strongest 30 seconds. Add the cover so it is easy to spot. ### Voice notes and announcements *9:16 · 0:12* Give a recorded message a face. Captions help viewers who watch without sound. ### Samples and sound packs *9:16 · 0:28* Show what a sound sounds like. A waveform makes a short sample worth a click. - [Pixel-art music video evolves from green terminal to full color by amanojak2024](https://x.com/amanojak2024/status/2104062837228212282) - [Short video with generated narration and sound effects by ayumi_t820](https://x.com/ayumi_t820/status/2104807505297871023) - [Beat-reprogrammed grid of cells for the track KAMI Circuit by aratamadao](https://x.com/aratamadao/status/2103706285204255186) ## How to convert MP3 to video The creator above does the work. Nothing is exported until you say so. ### 1. Add your MP3 Upload the file and a cover image. Say where the clip should start. ### 2. Check the clip Potto lists the start and the end. Fix them in chat if they are off. ### 3. Export the MP4 Preview the waveform, the picture and the captions. Then export. ## What the MP3 to video converter does A basic converter pairs your MP3 with one still picture. Potto builds a clip. It draws a waveform from your audio and adds your cover image and captions. ### A clip of your MP3 Say which part to use. Potto lists the clip's start and end. Change them in chat. - 90 seconds per clip - Files up to 10 minutes - [Landscape and portrait cuts scored with added music by PalashBagchi11](https://x.com/PalashBagchi11/status/2102924409124389221) ### MP3 in, MP4 out The result is a video file. Post it where audio files are not accepted. - MP4 at 30 fps - Square 1:1 by default - [Chord-theory visualizer traces an E7alt progression by dadabots](https://x.com/dadabots/status/2103039181266338276) - [Lyric video with bold Japanese type and a grid of blocks by takamasa045](https://x.com/takamasa045/status/2103791907801620931) - [Red and white 'DANCE' type pulses to the beat by itnavi2022](https://x.com/itnavi2022/status/2103416250743574988) ### A waveform, not a still frame The shape moves with your sound. Pick bars, a wave or a ring. - Three moving styles - Moves with your MP3 - [Glowing notes bounce along a 3D piano-roll staff in the dark by transitive_bs](https://x.com/transitive_bs/status/2106223134978498623) ### Your picture in the frame Upload an image with the MP3. It sits beside the waveform or inside the ring. - Cover image in the frame - Title text on screen - [Paper-collage music video with a planet made of paperclips by makevoid](https://x.com/makevoid/status/2103945695803924943) ### Captions and an SRT file Spoken words become captions. Keep the SRT for sites that want a separate file. - Spoken words as captions - Separate SRT file - [Short video with generated narration and sound effects by ayumi_t820](https://x.com/ayumi_t820/status/2104807505297871023) ## Where to go next Converting an MP3 is one task. These pages cover other starting points. - [Music Visualizer](https://potto.ai/music-visualizer.md): Make a song move with an animated waveform. - [Audiogram Maker](https://potto.ai/audiogram.md): Clip a podcast moment with captions and show details. - [YouTube Shorts Maker](https://potto.ai/youtube-shorts-maker.md): Vertical Shorts from prompts, links and images. - [Video Ad Maker](https://potto.ai/video-ad-maker.md): Build a short ad from your product details. - [AI Video Generator](https://potto.ai/ai-video-generator.md): Pick a video type from a single prompt. - [AI Motion Graphics](https://potto.ai/ai-motion-graphics.md): Browse styles from kinetic text to charts. ## MP3 to Video FAQs How it works, limits, formats, captions and credits. ### How do I convert MP3 to video? Open the creator at the top and drop in your MP3. Add a picture for the cover. Tell Potto where the clip starts. Check the times it lists. When they look right, export the MP4. ### What is an MP3 to video converter? An MP3 to video converter puts an audio file inside a video file. Many video sites accept video only, so a bare MP3 cannot be posted. A basic converter shows one still picture. Potto's MP3 to video converter adds a moving waveform, a cover picture and captions. ### Can I convert a full MP3 to video? No. Potto converts one clip, 90 seconds at most. You can upload an MP3 of 10 minutes or less, up to 20 MB. Potto then uses the part you choose. A full-length conversion is not something it does. ### Is MP3 to MP4 the same as MP3 to video? Yes, in practice. An MP3 holds sound only. Potto's MP3 to video converter writes an MP4, a file with a picture track and your sound. MP4 is the video type most sites and phones accept. ### Which audio files can I upload? WAV and M4A files are accepted too. Each file can be 10 minutes or 20 MB at most. Your file's sound stays as it is. Potto does not re-record it, remix it or add music. ### Can I use my own picture on an MP3 video? Yes. Upload a picture along with the MP3. It appears in the frame next to the waveform. A ring style can wrap around it. Potto always draws the waveform, so the result is never a frozen image. ### How do I convert an MP3 to a YouTube video? Choose 16:9 and export the MP4. Then upload that file to YouTube yourself. Potto does not post for you. Pick the clip that best shows what your audio is about. ### Does the converter add captions? By default the clip gets captions. They are built from the words in your audio. Save the SRT file if the site you post to takes caption files. Read each line first, because transcripts miss names. ### Can I add an MP3 to a video I already have? No. You cannot upload an existing video. That rules out adding a soundtrack to your footage. It also rules out pulling an MP3 out of a video. Potto only makes a new video from your audio. ### What size is the video? The export is an MP4 at 1080p. The default is square, 1:1. Pick 16:9 for a wide player or 9:16 for a phone screen. The frame rate is 30 fps. ### Is the MP3 to video converter free? You can try it free. Previews cost nothing. New accounts start with 100 credits, which covers 15 seconds. After that, each second of video costs 5 credits, so 30 seconds costs 150 credits. ## Convert your MP3 to video Upload the MP3 and check the clip. Export when it looks right.