How do I convert VOB to ASF?

Drop your VOB 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 VOB to ASF here?

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

Is the VOB 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 VOB to ASF reduce quality?

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

Can I convert multiple VOB 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 VOB?

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

ASF→VOB VOB→MP4 MP4→ASF VOB→MP3 MOV→ASF VOB→WebP GIF→ASF VOB→MOV WebM→ASF VOB→GIF MKV→ASF VOB→WAV VOB→WebM VOB→MKV VOB→M4A VOB→AVI VOB→FLAC VOB→AAC VOB→OGG VOB→WMV VOB→Opus VOB→FLV VOB→M4V VOB→MPEG VOB→3GP VOB→WMA VOB→MPG VOB→TS VOB→AIFF VOB→AMR AVI→ASF WMV→ASF FLV→ASF M4V→ASF MPEG→ASF 3GP→ASF MPG→ASF TS→ASF MTS→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

VOBASF

Convert VOB to ASF

Free and private: VOB 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 VOB to ASF

1
Add your VOB files
Drag and drop VOB 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.

VOB vs ASF

From

VOB · DVD Video Object

VOB files hold the MPEG-2 video, audio and subtitles on a DVD-Video disc.

Type: Video
Extension: .vob
MIME: video/dvd
Best for: ripped DVD content

Legacy format

All VOB 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 VOB.

VOB to ASF: frequently asked questions

Free, private and in your browser