How do I convert APNG to ASF?

Drop your APNG 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 APNG to ASF here?

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

Is the APNG 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 APNG to ASF reduce quality?

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

Can I convert multiple APNG 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 APNG?

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

ASF→APNG APNG→PNG MP4→ASF APNG→JPG MOV→ASF APNG→WebP GIF→ASF APNG→MP4 WebM→ASF APNG→PDF MKV→ASF APNG→JPEG APNG→GIF APNG→MOV APNG→AVIF APNG→WebM APNG→MKV APNG→AVI APNG→ICO APNG→TIFF APNG→BMP APNG→WMV APNG→PSD APNG→FLV APNG→M4V APNG→MPEG APNG→3GP APNG→EPS APNG→MPG APNG→TS AVI→ASF WMV→ASF FLV→ASF M4V→ASF MPEG→ASF 3GP→ASF MPG→ASF TS→ASF MTS→ASF VOB→ASF M2TS→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

APNGASF

Convert APNG to ASF

Free and private: APNG 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 APNG to ASF

1
Add your APNG files
Drag and drop APNG 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.

APNG vs ASF

From

APNG · Animated PNG

APNG extends PNG with animation frames, offering 24-bit color and alpha transparency where GIF is limited to 256 colors.

Type: Image
Extension: .apng
MIME: image/apng
Best for: high-quality animated stickers and UI animations

LosslessAnimationTransparency

All APNG 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 APNG.

APNG to ASF: frequently asked questions

Free, private and in your browser