Convert MTS to AAC online in seconds — free, with no sign-up. AAC is lossy and ideal for the Apple ecosystem and high-quality streaming. Your files are encrypted and deleted automatically after 24 hours.
AAC
Advanced Audio Coding — A modern lossy codec that sounds better than MP3 at the same bitrate; Apple's default.
How to convert MTS to AAC
- 1Upload your MTS file
Click “Choose a file” or drag and drop your MTS file onto the page — no sign-up or email needed.
- 2Convert to AAC
AAC is already selected as the output. Open Options to fine-tune quality if you like, then click Convert.
- 3Download your AAC file
Your AAC file is ready in seconds — click Download to save it. Files are automatically deleted after 24 hours.
Frequently asked questions
Does converting MTS to AAC lose quality?
Converting MTS to AAC keeps your content intact. We use high-quality defaults so your AAC file looks as close to the original as the format allows.
Is the MTS to AAC converter free?
Yes — converting MTS to AAC is completely free. There's no watermark, no sign-up and no email required, and you can convert as many files as you like.
Are my MTS files private and secure?
Yes. Your uploads are encrypted in transit, processed privately, and automatically deleted within 24 hours. We never share, sell or look at your files.
Can I convert MTS to AAC on iPhone, Android, Mac or Windows?
Yes. The converter runs entirely in your browser, so it works on any device — iPhone, iPad, Android, Mac, Windows or Linux — with nothing to download or install.
How long does it take to convert MTS to AAC?
Most files convert in a few seconds. Larger files take a little longer, and your upload speed is usually the limiting factor. There's no queue and no waiting for an email.
What else can I convert MTS files to?
Besides AAC, you can convert MTS to AVI, FLAC, FLV, GIF, JPG, M4A and more — see the full list of MTS conversions below.
Other conversions
Last updated July 2026