Convert OGG to AAC.
Turn an OGG Vorbis or Opus file into AAC, which plays on iPhones, Macs and almost every app.
OGG on Apple devices
OGG is the open audio format of games, Linux and voice apps, but iPhones and many car stereos skip it. AAC is native across Apple devices and widely supported elsewhere.
Quality
Start from the highest-quality OGG you have. Each lossy conversion removes a little more.
Size change
The AAC is usually similar in size to the OGG.
How it works
- 01
Upload your OGG
Drop a file or pick one from your device. Private by default.
- 02
Encode with ffmpeg
ffmpeg decodes the OGG and encodes AAC at about 128 kbps for stereo.
- 03
Download
Grab your AAC.
About 128 kbps AAC for stereo
Reads Vorbis and Opus OGG files
Private uploads, auto-deleted after 1 hour
No watermark, no signup to try
Open-source ffmpeg engine
OGG to AAC: re-encoded
AAC is a compressed, lossy audio format, so this re-encodes the sound and the file gets smaller. Every lossy re-encode sheds a little quality, so convert from the best source you have rather than chaining conversions.
Need more than a conversion?
Send your audio or video to TranscriptAI to generate a transcript, summary, structured notes, flashcards, quiz questions or action items: automatically.
Common questions
Is it free?+
Yes. Convert OGG to AAC free. No signup and no watermark. Free covers 10 server conversions a day, up to 100 MB a file. Pro removes the daily limit and raises the file limit to 2 GB.
Is my file private?+
Your file is uploaded to a private bucket, converted on our own engine, and auto-deleted after 1 hour. It is never sent to a third-party converter.
Will it sound worse?+
Both formats are lossy, so a second round of compression removes a little more detail. At about 128 kbps the difference is hard to hear for everyday listening. For no further loss, use OGG to WAV.
Are tags kept?+
No. A raw .aac file has no room for tags or cover art. For a file that keeps tags and plays everywhere, use OGG to MP3.
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