How do I convert M4V to ASF?

Drop your M4V file onto the converter above, make sure ASF is selected, and click Convert. When it's done, download the ASF file — it usually takes a few seconds.

Is it safe to convert M4V to ASF here?

Yes. M4V to ASF conversion happens entirely inside your browser using WebAssembly, so your file is never uploaded to any server.

Is the M4V to ASF 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 M4V to ASF reduce quality?

No — ASF preserves the content of your M4V file as faithfully as the format allows.

Can I convert multiple M4V 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 ASF back to M4V?

Yes — use our ASF to M4V converter. Note that converting back and forth between formats can't recover detail lost to lossy compression.

ASF→M4V M4V→MP4 MP4→ASF M4V→MP3 MOV→ASF M4V→WebP GIF→ASF M4V→MOV WebM→ASF M4V→GIF MKV→ASF M4V→WAV M4V→WebM M4V→MKV M4V→M4A M4V→AVI M4V→FLAC M4V→AAC M4V→OGG M4V→WMV M4V→Opus M4V→FLV M4V→MPEG M4V→3GP M4V→WMA M4V→TS M4V→MPG M4V→AIFF M4V→AMR M4V→VOB AVI→ASF WMV→ASF FLV→ASF MPEG→ASF 3GP→ASF MPG→ASF TS→ASF MTS→ASF VOB→ASF M2TS→ASF APNG→ASF OGV→ASF MXF→ASF DivX→ASF 3G2→ASF RM→ASF RMVB→ASF F4V→ASF 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

M4VASF

Convert M4V to ASF

Free and private: M4V files are converted in your browser on computers; on phones, in our fast cloud and deleted automatically.

In your browser (fast cloud on phones)
No watermark
Batch & ZIP download

How to convert M4V to ASF

1
Add your M4V files
Drag and drop M4V files onto the converter, paste them, or click to browse. You can add several at once.
2
Choose ASF
ASF 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 ASF
Download each ASF file, or everything at once as a ZIP.

M4V vs ASF

From

M4V · iTunes Video

M4V is Apple's variant of MP4 used by iTunes and the Apple TV app.

Type: Video
Extension: .m4v
MIME: video/x-m4v
Best for: videos from Apple's iTunes Store and apps

Lossy compression

All M4V conversions →

ASF · Advanced Systems Format

ASF is Microsoft's streaming container behind WMV and WMA files.

Type: Video
Extension: .asf
MIME: video/x-ms-asf
Best for: legacy Windows Media streams

Legacy format

All ASF conversions →

Need it the other way around? Convert ASF to M4V.

M4V to ASF: frequently asked questions

Free, private and in your browser