MP4 to AAC converter
A fast, private way to change MP4 to AAC. Drag, drop, download – your files never sit on our servers longer than they have to.
Convert MP4 to AAC
Drop your files to try StandardsPDF. This tool is available in the full workspace.
Preserves bitrate and channels for clean playback
Handles long recordings and full albums in one job
Files auto-deleted from our servers within 60 minutes
Works in any modern browser – desktop, tablet or phone
How it works
Convert MP4 to AAC in 3 steps
Upload or drag in your MP4 file
Choose your output options if you need them
Download the finished AAC
Private by default
Files are encrypted in transit and deleted within 60 minutes.
Fast
Most jobs finish in under 10 seconds. No queueing.
No signup on free tier
5 documents per day, no credit card required.
FAQ
Frequently asked questions
How do I convert MP4 to AAC?+
Upload your MP4 file (or drag it onto the box above), wait a few seconds while StandardsPDF converts it in your browser, then download the AAC. There is nothing to install and no account required.
Is converting MP4 to AAC free?+
Yes. MP4 to AAC conversion is free on the StandardsPDF free tier – no watermark, no signup, and no credit card. A Pro tier lifts the file-size and daily limits if you need more.
Will the AAC keep the quality of my MP4?+
StandardsPDF aims for the highest fidelity the AAC format allows, so your video comes through looking as close to the original as possible. Some format-specific details may adapt where AAC works differently to MP4.
Can I choose the bitrate when converting MP4 to AAC?+
On the free tier StandardsPDF picks a clean default bitrate for your AAC; Pro lets you set the exact bitrate and sample rate for the MP4 to AAC conversion.
Do I need to install anything to convert MP4 to AAC?+
No. Converting MP4 to AAC runs entirely in the browser – no desktop software, no extensions and no account for the free tier.
What is the maximum MP4 file size I can convert to AAC?+
Up to 100 MB per MP4 on the free tier and 2 GB on Pro. If your MP4 is larger, split it first or upgrade for the higher limit.
Can I convert several MP4 files to AAC at once?+
Yes – add multiple MP4 files and StandardsPDF processes them as a batch, returning a AAC for each.
Can I convert MP4 to AAC on my phone?+
Yes – the MP4 to AAC converter is fully responsive and works in Safari, Chrome and other modern browsers on iOS, Android and iPadOS.