ASF to Kindle Video Converter

Convert ASF to Kindle Video online, for free.



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Auto
Sets how the video is encoded. "Auto" suits most conversions. "Copy" reuses the video as-is, so it is fast and keeps full quality, but only when the output format supports it.
No change
Choose how the video is resized: to a set resolution, or to a different aspect ratio, where the video's width is kept and the height is recalculated to match. Select "No change" to keep the original size.
No change
Sets how many frames per second the output video has. Lowering it reduces file size but makes motion less smooth, and raising it above the source frame rate won't add smoothness. "No change" keeps the source frame rate.
None
Rotates the video clockwise by the angle you select. Choose "None" to leave it as-is.
No change
Flips the video horizontally or vertically. "No change" leaves it as-is.
Upload
Select the best option for your subtitles: 'Upload' to add your own, or 'Copy' to replicate from the original file.
Choose a file Browse
Upload a .srt or .ass file.
Hard
Choose how subtitles are added. "Hard" burns them into the video permanently; "Soft" keeps them separate so viewers can turn them off. Default is Hard.
Auto
Sets how the audio is encoded. "Auto" suits most conversions. "Copy" reuses the audio as-is, so it is fast and keeps full quality, but only when the output format supports it.
100% represents the original volume. To double the volume, increase it to 200%. To reduce volume by half, select 50%
Fades the audio in at the start of the output.
Fades the audio out at the end of the output.
Enable to drop the audio stream from the output, leaving video only.
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Specify the start position of trim (HH:MM:SS.MS). Leave at 00:00:00.00 to disable.
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Specify the end position of trim (HH:MM:SS.MS). Leave at 00:00:00.00 to disable.
x
Enter crop rectangle's width and height in pixels (0 - 10000). Odd dimension numbers will be rounded down to the nearest even number.
Enter the x-coordinate of the crop rectangle's top left position
Enter the y-coordinate of the crop rectangle's top left position.


How to Convert ASF to Kindle Video?

  1. Click the “Choose Files” button to select your ASF files.
  2. Click the “Convert to Kindle Video” button to start the conversion.
  3. When the status change to “Done” click the “Download Kindle Video” button

Easy to Use

Simply upload your ASF files and click the convert button. You can also batch convert ASF to Kindle Video format.

Best Quality

We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional, look for the icon).

Free & Secure

Our ASF to Kindle Video Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically deleted after 8 hours.


Advanced Systems Format (ASF) is a proprietary Microsoft product, which serves as a container for Windows multimedia content. Microsoft designed it for streaming and to be independent of systems and protocols. It supports chapters, captions, subtitles, metadata tags, streaming, and hardware players, but does not support menus.

 

How to open an ASF file?

It is best to use Windows Media Player to open an ASF file. Alternatively, VLC media player is a good choice too. Keep in mind that ASF can contain WMA and WMV files, which might display as the file extension of the ASF file.

 

Developed by: Microsoft

Initial release: 1995

Useful links:

https://en.wikipedia.org/wiki/Advanced_Systems_Format

https://docs.microsoft.com/en-us/windows/desktop/wmformat/overview-of-the-asf-format


Kindle Video is an MP4 file encoded for Amazon’s Fire tablets and Kindle Fire devices, using H.264 video with AAC audio. The settings are chosen to match the screen size and decoding capability of these tablets, so personal videos play back smoothly without the device having to re-encode them. Note that e-ink Kindle e-readers cannot play video at all — only the Fire tablet line can.

 

How to open a Kindle Video file?

Connect the tablet to your computer with a USB cable, copy the file into the Movies or Videos folder, then open it from the device’s Videos or Gallery app.

 

You can also send the file to the tablet through a cloud storage service such as Dropbox, Google Drive, or OneDrive. (Amazon Cloud Drive, once the obvious choice here, was discontinued in December 2023.) The same MP4 plays normally on any desktop computer too.

 

Developed by: Amazon.com, Inc.

Initial Release: 2011

Freeconvert.me can convert your files to these related formats:


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