MP4 to AAC Online
Free MP4 to AAC converter — no signup, no watermark. Upload your file and download the result in seconds. Files are deleted automatically after conversion.
Drop your files here or browse local directory
Up to 150 MB per file · 1 file at a time · 56 formats
Vectorization Settings
Controls how your image is converted to vectors
Better source = better vectors
Upscales your image before vectorization for sharper, cleaner results. Takes a few extra minutes.
Image Type
Output Detail
Auto = smooth curves with fewer nodes. High = more detail, more nodes.
Color Count
Fewer colors = fewer objects. Best for logos. Auto lets the engine decide.
Remove Background
Auto-detect and remove background color
Black & White Mode
Ideal for stamps, signatures, ink drawings
MP4
— MPEG-4 Part 14MP4 is the universal standard for video — supported everywhere from phones to smart TVs to web browsers, with excellent compression and quality.
All MP4 conversionsAAC
— Advanced Audio CodingAAC delivers better sound quality than MP3 at the same bitrate. Used by Apple devices, YouTube, and most modern streaming platforms.
All AAC conversionsOther MP4 conversions
Other formats to AAC
How to convert MP4 to AAC
Upload your MP4 file
Click the upload area or drag and drop your MP4 file. Files up to 150 MB are supported.
Convert to AAC
AAC is pre-selected as the output. Click Convert — most files finish in under 30 seconds.
Download your AAC file
Your converted AAC file is ready instantly. Files are automatically deleted after 3 hours for your privacy.