VP9 is Google's next-generation open-source video codec delivering 50% better compression than VP8 for 4K streaming.
Advanced Systems Format (ASF) is Microsoft's proprietary container format for streaming audio and video content.
Reach for VP9 when your priority is youtube 4k, web video, chrome streaming — its efficient compression makes sharing fast and storage minimal.
Reach for ASF when your priority is windows streaming, legacy media servers — its efficient compression makes sharing fast and storage minimal.
Learn more about VP9 and ASF formats in our detailed guide.
Convert VP9 files to ASF online for free. High-quality conversion with no registration required.
Upload or enter a URL to convert VP9 to ASF instantly
or paste from clipboard
.vp9,.VP9 (max 100MB)
Verifying security check…
VP9 (VP9 video) - VP9, next-gen open-source video codec for 4K web video. Best for youtube 4k, web video, chrome streaming.
ASF (ASF videos) - Advanced Systems Format, Microsoft streaming format. Ideal for windows streaming, legacy media servers.
Yes, GoConvertFile offers free conversion of VP9 to ASF for files up to 100MB. No registration required.
Most VP9 to ASF conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.
ASF is ideal for windows streaming, legacy media servers. Advanced Systems Format, Microsoft streaming format
File size after VP9 to ASF conversion depends on the content complexity and quality settings. Both formats use similar compression approaches so sizes are comparable.