MP3 to MP4 Converter

Upload audio files and convert them into visual video content using AI. Generate background videos via a conversational interface and save as MP4.

Start creating now It's FREE!

or Drop a file here

AI-powered MP3 to MP4 conversion interface

Convert Audio into Engaging Video

Going beyond simple format conversion, Carat AI breathes life into your music and voice. Convert MP3 to MP4 for YouTube or social media uploads and add high-quality AI-generated visuals.

AI-Driven Video Generation

AI automatically generates and merges images or videos that match the mood of your audio.

AI generating visual video matching audio mood

Conversational Editing

Modify your video instantly by describing the desired style in the chat, without complex tools.

AI video editing via conversational interface

Multi-Model Access

Utilize over 30 AI models to implement various styles, from album covers to background videos.

Diverse video styles created using over 30 AI models

How to Convert MP3 to MP4

Converting audio to video is easier than ever with Carat AI's conversational agent.

Upload Audio File

Upload the MP3 file you want to convert and describe your desired video style.

Generate & Edit Video

AI generates video synced to your audio. Refine details through conversation.

High-Quality Download

Review the finished MP4 video, upscale it to 4K quality, and download.

Why Choose Carat AI?

The best choice to complete your creative workflow beyond a simple converter.

Superior 4K Quality

Sharpen converted videos up to 4K resolution with the latest upscaling technology.

One-Stop AI Platform

Use image, video, and audio models in one place for consistent branding.

Seamless Collaboration

Easily share generated assets with team members and streamline your workflow.

Frequently Asked Questions

Answers to common questions about MP3 to MP4 conversion and using Carat AI.

Why do I need to convert MP3 to MP4?

MP3 is an audio-only format and cannot be uploaded to video-centric platforms like YouTube or Instagram. Converting MP3 to MP4 adds visual elements to your audio, allowing you to publish content on these platforms and expand your reach.

What video style works best for MP3 files?

How can I improve the quality of the converted video?

Why is Carat AI better than other online converters?

Updated 02/13/2026

Explore more AI