How do I convert Opus to AAC?

Drop your Opus file onto the converter above, make sure AAC is selected, and click Convert. When it's done, download the AAC file — it usually takes a few seconds.

Is it safe to convert Opus to AAC here?

Yes. Opus to AAC conversion happens entirely inside your browser using WebAssembly, so your file is never uploaded to any server.

Is the Opus to AAC converter free?

Yes — free with no watermark. Signed-out visitors can convert 25 files a day, and a free account raises that to 250.

Will converting Opus to AAC reduce quality?

AAC is a lossy format, but our defaults are tuned to be visually indistinguishable for most files. You can raise the quality under Options.

Can I convert multiple Opus files at once?

Yes. Add up to 5 files at a time without an account, 10 with a free account and up to 500 on paid plans, then download them individually or as a single ZIP.

Can I convert AAC back to Opus?

Yes — use our AAC to Opus converter. Note that converting back and forth between formats can't recover detail lost to lossy compression.

AAC→Opus Opus→MP3 MP3→AAC Opus→WAV MP4→AAC Opus→M4A WAV→AAC Opus→FLAC MOV→AAC M4A→AAC Opus→OGG WebM→AAC Opus→WMA Opus→AIFF Opus→AMR Opus→M4B Opus→AC3 Opus→MP2 Opus→WEBA Opus→OGA Opus→MKA Opus→WV Opus→AU Opus→TTA FLAC→AAC MKV→AAC AVI→AAC OGG→AAC WMV→AAC WMA→AAC M4V→AAC 3GP→AAC FLV→AAC MPEG→AAC AIFF→AAC AMR→AAC TS→AAC MPG→AAC M4B→AAC MTS→AAC VOB→AAC M2TS→AAC PNG→JPG JPG→PNG PNG→WebP JPG→WebP WebP→PNG WebP→JPG HEIC→PNG HEIC→JPG MP4→MP3 PNG→JPEG JPG→JPEG JPEG→PNG JPEG→JPG PNG→PDF JPG→PDF PDF→PNG PDF→JPG HEIC→WebP MP4→WebP PDF→DOCX DOCX→PDF JPEG→WebP WebP→JPEG PNG→GIF JPG→GIF GIF→PNG GIF→JPG MP4→MOV MOV→MP4 WebP→PDF HEIC→JPEG WebP→GIF GIF→WebP HEIC→PDF MP3→WAV WAV→MP3 JPEG→PDF PDF→JPEG SVG→PNG SVG→JPG HEIC→GIF MOV→MP3 MP4→GIF GIF→MP4 JPEG→GIF GIF→JPEG PNG→AVIF JPG→AVIF AVIF→PNG AVIF→JPG MP3→M4A M4A→MP3 GIF→PDF SVG→PDF PNG→SVG JPG→SVG PDF→SVG SVG→WebP MOV→WebP MP4→WAV MP4→WebM WebM→MP4 WebP→AVIF AVIF→WebP WebP→SVG SVG→JPEG MP4→MKV MKV→MP4 HEIC→AVIF MP4→M4A JPEG→AVIF AVIF→JPEG JPEG→SVG MOV→GIF GIF→MOV WebM→MP3 AVIF→PDF MP3→FLAC FLAC→MP3 MP4→AVI AVI→MP4 MKV→MP3 GIF→AVIF AVIF→GIF SVG→GIF GIF→SVG WebM→WebP MOV→WAV XLSX→PDF CSV→PDF EPUB→PDF PDF→EPUB MOV→WebM WebM→MOV MKV→WebP PNG→ICO JPG→ICO ICO→PNG ICO→JPG WAV→M4A AAC→MP3 M4A→WAV MP4→FLAC AVI→MP3 MOV→MKV MKV→MOV MOV→M4A DOCX→EPUB EPUB→DOCX CSV→DOCX PDF→TXT DOC→PDF TXT→PDF WebP→ICO ICO→WebP PPTX→PDF AVI→WebP WebM→GIF

OpusAAC

Convert Opus to AAC

Free, fast and private. Your Opus files are converted right in your browser — nothing is uploaded.

Runs in your browser
No watermark
Batch & ZIP download

Need a smaller Opus? Compress Opus

How to convert Opus to AAC

1
Add your Opus files
Drag and drop Opus files onto the converter, paste them, or click to browse. You can add several at once.
2
Choose AAC
AAC is already selected. Open Options if you want to change quality, size or metadata.
3
Convert
Click Convert. Your files are converted right in your browser in seconds.
4
Download your AAC
Download each AAC file, or everything at once as a ZIP.

Opus vs AAC

From

Opus · Opus Audio

Opus is a modern open codec that beats MP3 and AAC at every bitrate and excels at speech. WhatsApp voice notes use it.

Type: Audio
Extension: .opus
MIME: audio/opus
Best for: voice messages, VoIP and efficient music streaming

Lossy compressionOpen standard

All Opus conversions →

AAC · Advanced Audio Coding

AAC is the successor to MP3, delivering better quality at the same bitrate. It's the default audio codec on Apple devices and YouTube.

Type: Audio
Extension: .aac
MIME: audio/aac
Best for: streaming, mobile audio and video soundtracks

Lossy compression

All AAC conversions →

Need it the other way around? Convert AAC to Opus.

Opus to AAC: frequently asked questions

Free, private and in your browser