How do I convert AU to MP2?

Drop your AU file onto the converter above, make sure MP2 is selected, and click Convert. When it's done, download the MP2 file — it usually takes a few seconds.

Is it safe to convert AU to MP2 here?

Yes. AU to MP2 conversion happens entirely inside your browser using WebAssembly, so your file is never uploaded to any server.

Is the AU to MP2 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 AU to MP2 reduce quality?

MP2 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 AU 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 MP2 back to AU?

Yes — use our MP2 to AU converter. Note that converting back and forth between formats can't recover detail lost to lossy compression.

MP2→AU AU→MP3 MP3→MP2 AU→WAV MP4→MP2 AU→M4A WAV→MP2 AU→FLAC MOV→MP2 AU→AAC M4A→MP2 AU→OGG AU→Opus AU→WMA AU→AIFF AU→AMR AU→M4B AU→AC3 AU→WEBA AU→OGA AU→MKA AU→WV AU→TTA WebM→MP2 FLAC→MP2 MKV→MP2 AAC→MP2 AVI→MP2 OGG→MP2 WMV→MP2 Opus→MP2 WMA→MP2 FLV→MP2 M4V→MP2 MPEG→MP2 3GP→MP2 AIFF→MP2 AMR→MP2 MPG→MP2 TS→MP2 M4B→MP2 MTS→MP2 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 MP3→AAC 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

AUMP2

Convert AU to MP2

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

Runs in your browser
No watermark
Batch & ZIP download

How to convert AU to MP2

1
Add your AU files
Drag and drop AU files onto the converter, paste them, or click to browse. You can add several at once.
2
Choose MP2
MP2 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 MP2
Download each MP2 file, or everything at once as a ZIP.

AU vs MP2

From

AU · Sun Audio

AU is a simple audio format introduced by Sun Microsystems, common on early Unix systems and Java.

Type: Audio
Extension: .au
MIME: audio/basic
Best for: legacy Unix and Java applications

Legacy format

All AU conversions →

MP2 · MPEG Audio Layer II

MP2 is MP3's predecessor, still used in broadcasting and DVD audio.

Type: Audio
Extension: .mp2
MIME: audio/mpeg
Best for: broadcast audio

Lossy compressionLegacy format

All MP2 conversions →

Need it the other way around? Convert MP2 to AU.

Related conversions

AU to MP2: frequently asked questions

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Convert AU to MP2 in seconds.

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Convert AU to MP2

How to convert AU to MP2

Add your AU files

Choose MP2

Convert

Download your MP2