Convert Advanced Systems Format (.asf) to Mobile Video (.mobile-video) online for free. Fast, secure video conversion with no watermarks or registration.
Upload your .asf file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .mp4 file when it's ready.
Mobile Video is a generic 480p H.264 preset with AAC audio, designed as a universal baseline that plays on virtually any mobile device manufactured in the last 15 years — from budget Androids to older Blackberry handsets to Windows Phones. ASF files with WMV content are incompatible with most mobile platforms, and this preset ensures playback without requiring any specific device knowledge.
When you need to distribute video to a mixed fleet of mobile devices and cannot guarantee the specific model or OS version, the Mobile Video preset is the safest choice. H.264 Baseline Profile at 480p works on every mobile platform, every browser, and virtually every hardware decoder. It produces small files that download quickly over cellular connections and play smoothly even on low-powered processors.
The preset uses H.264 Baseline Profile Level 3.0 at 854x480 resolution with a bitrate of 1-1.5 Mbps. Audio is AAC-LC at 96 kbps stereo. Baseline Profile avoids B-frames and CABAC entropy coding, ensuring even the oldest mobile hardware decoders can play the file. The MP4 container has faststart enabled.
480p H.264 at 1-1.5 Mbps looks good on screens up to 5 inches and acceptable on 6-inch displays. On larger tablets, pixelation may be visible. For a generic mobile audience, this is the most reliable quality-to-compatibility trade-off.
| Device | ASF | Mobile Video |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser |
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Resolution: 1280x720
Bitrate: 4 Mbps
8MB free, 50MB Nitro
The Mobile Video preset is the universal safe bet for converting ASF content to play on any phone or tablet, regardless of manufacturer, OS, or age.
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ใช้ได้ทุกที่
| No |
ทุกเบราว์เซอร์ ทุกอุปกรณ์
| ฟีเจอร์ | ASF | Mobile Video |
|---|---|---|
| ชื่อเต็ม | Advanced Systems Format | Mobile Device Video |
| นามสกุล | .asf | .mp4 |
| เหมาะที่สุดสำหรับ | Streaming optimized | Universal mobile |