As the extension name for AVCHD (Advanced Video Coding High Definition), MTS is widely used on professional HD video recording devices for its perfect quality. Absolutely, this type of file usually takes too much space on hard drive. Therefore, when editing MTS video, it may slow down computer or even freeze on the device with ordinary configuration. AVI maybe a nice alternative to MTS file, which features high synchronization in audio and video while preserving good quality. To do the conversion, you may consider these programs that can finely convert MTS to AVI file in the following parts, you can check them and choose one that you like most.

Online solutions to convert MTS video

Presently, there’re many online converters available that allow users to do conversion on webpage directly. It’s really convenient to use indeed that you can convert media files without installing any programs on your computer. Check below for more details.


Apowersoft Free Online Video Converter

The first MTS to AVI converter is Apowersoft Free Online Video Converter. It’s a free web-based tool that provides many audio and video formats for converting, such as MP3, WMA, AVI, MP4, WMV, etc. Also, this program comes with a quick editor that provides some options to customize resolution, trim video clips, adjust channel and stereo rate. You can check the guidance below to know how to use it.

  • Go to its site and click “Browse” button to load local MTS file.
  • Choose “AVI” as the output format.
  • Press “Convert” button to choose desired saving path and get start.

convert MTS to AVI



You can also use this application to convert MTS to AVI video, which is a well-known program for online conversion. It’s capable of recognizing numerous media files and converting them into various types of files including image, video, audio and so on. Note that, before converting, you should provide your email address for receiving the converted file when the task is completed. To use this tool, you can do as follow.

  • Go to the site of program.
  • Press “Choose Files” to load target MTS file.
  • Drop down the menu and choose “AVI” as the output format.
  • Fill in the blank in Step 3 with your email address.
  • Click the button of “Convert” to get start.


Note that, the online tools may be unstable when your network is not so good. Actually, it’s really time-consuming to use Zamzar for conversion. Because you have to wait for a long period of time for its staff to perform conversion and mail the output file to you. Besides, you can consider using some desktop software which also come with more advanced functions.

Desktop application for MTS conversion

Apowersoft Video Converter Studio is a professional program for media file converting. It’s equipped with an advanced transcoder that enables you to convert audio and video file into various formats with no quality loss, such as MP3, AAC, FLAC, WAV, MP4, AVI, WMV, etc. Meanwhile, its built-in editor empowers you to do some editing jobs on your media file, such as trimming, cropping, adjusting visual effects and even adding watermark and subtitles. Moreover, this program also offers some other practical tools like video downloader, screen recorder and MV maker. To learn how to convert MTS to AVI files, you can check the steps below.


  • Download and install Video Converter Studio on your computer.
  • Add MTS file into the program.
  • Click the menu of “Profile” and choose “AVI” as the output format.
  • Customize desired output folder by clicking the folder icon.
  • Press “Convert” button to start converting. The task will be finished soon within a short while.


Smart tricks – Reduce file size

Aside from converting MTS to AVI, you can also confine the file size based on your preferences with this program. This converter has a smart function that allows you to customize output file size. You will find this tool extremely helpful when your disk space is not enough.

To reduce the file size, you can simply click “Size” button in the task list and input desired file size in pop up window. Next, press “Convert” button to start the task.

reduce file size


All of the above MTS to AVI converters perform excellent in format conversion. To choose the best one, Apowersoft Video Converter Studio is the most recommended. There’re so many advanced functions equipped in this program, which offer more options for you to convert and edit media files.

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