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Best MTS to AVI Converter - UniConverter
  • Best MTS to AVI Converter on Mac or Windows PC.
  • Convert MTS/M2TS files to AVI
  • Supports batch process.
  • Supports more than 150 video and audio formats, like MP3, MP4, MOV, MKV, WMV, AVI, etc.
  • Toolbox includes: Fix Metadata, GIF Maker, Screen Recorder, Video Compressor, etc.

MTS to AVI: How to Convert MTS to AVI on Mac or Windows

by Brian Fisher • Aug 02,2019 • Proven solutions

Back from a trip with a lot of recorded MTS/M2TS video clips and want to share them with your family members and friends, or beautify them on an editing tool that supports AVI format? For convenient playback and editing, you might need to change the video format to convert MTS to AVI on Mac (macOS 10.7 Lion to 10.15 Catalina). And this is a specific tutorial, aiming at helping you convert MTS or M2TS files to AVI files on Mac.

Part 1: Convert MTS to AVI on Mac/Windows in Easiest Way

First and for the most, you need download and install the professional app, UniConverter. Despite of its nice feature for converting MTS/M2TS to AVI, it offers you some editing features as well. You can either merge video clips into a large file or trim a file into segments. What's more. you can also change the video effect.

Get the Best MTS/M2TS to AVI Video Converter:

  • Convert the original MTS/M2TS videos to AVI, MP4, MOV, AIFF, MP3, WAV and other 153+ video/audio formats.
  • Support high speed conversion for MTS or M2TS files conversion with original quality maintained.
  • Built-in editor helps you to merge, crop and set parameters of your MTS/M2TS video before conversion.
  • Convert online videos from 1,000+ online video sharing sites like YouTube, Vevo, Vimeo, Metacafe, Netflix, etc.
  • Transfer converted or downloaded MTS video or other video/music files to mobile devices easily.

Convert MTS/M2TS to AVI with 3 easy steps on Mac with iSkyspft UniConverter

Step 1. Add MTS/M2TS files to the app

Drag and drop M2TS/MTS files directly to this MTS to AVI converter software. Or click the + Add Files button to locate the M2TS/MTS files you want to add. To merge several video clips together, check the Merge All Videos.

Note: Batch conversion is supported by this MTS Mac Video Converter, so you can load several MTS files at one time. If you're using macOS High Sierra, you can convert MTS to AVI on Mac with fast speed and in high quality.

convert mts to avi

Step 2. Select AVI from the output format list

Setting an output format has never been easier. Just choose the AVI as the output format in the format tray. To adjust the video settings, click the Encode Settings icon that appears when you mouse over the format icon. Video resolution, bit rate and frame rate are included there.

mts to avi

Step 3. Start the MTS/M2TS to AVI conversion

Click the Convert button to get the conversion done in a few minutes. You see, just 3 simple steps and you can convert camcorder MTS/M2TS files to AVI on Mac or Windows PC.

mts file to avi


Since many of these MTS/M2TS files are recorded by yourself, you may want to delete some unsatisfied part. To do that, you can enter the editing interface, clip the part. By setting the start time and the end time, it is done. If some unwanted stuff appears in the scene, adjust the frame on the window to crop it. Of course, as you see on the interface, you can also adjust and change video effect.

Part 2: Convert MTS to AVI Free Online

You can also try online video converter to convert your MTS/M2TS files to AVI, if you don't want to install a desktop MTS to AVI converter. Try it below:

1. Convertio

To convert MTS to AVI, Convertio is one of the staple means of executing the conversion in a hassle-free way. This online converter is packed with super cool features of converting file/formats common to advanced means. MTS, AVI, MP4 etc. are some to name a few. Moreover, it supports a pool of file types and its sub-formats. With its simple, user-friendly interface, this is a good option to convert MTS file to AVI!


  • Easily intakes input from Dropbox, Drive or URL links.
  • Provides a streak of advance options like flipping video, merging or cutting them.


  • Does not have the facility of supporting file size more than 100 MB.
  • The speed of conversion is relatively slower compared to other formats.


2. Zamzar-Online File Conversion

The renowned online converter – Zamar can be counted for converting MTS file format to AVI easily. Users can take the leverage of seeking conversion of files in a good rocking speed. There are a range of file formats that are supported like MTS, M2TS, AVI, MP4, JPG, GIFF, FLV etc. Moreover, one can reap benefits from contacting the support team for resolving any kind of queries. Simply, drop in the URL and fetch the output.


  • No burden of downloading the software on PC.
  • Cool interface with better defining interface.


  • There are not much advanced settings or editing features for making settings.
  • You cannot download the file. You will receive in the download link or mail.


3. Convert.Files

Last resorted means of converting MTS to AVI file is Convert.Files. This web-based application is an effective medium to switch the format from one kind to another. It has a dense of file formats that are easily supported like Archive, documents, image, audio, video etc. So in future if you wish to convert the file, you can avail the service from Convert.Files online converter.


  • Supports taking inputs from the URL links of FTP, HTTPS, HTTP etc.
  • For security reasons, file is just for an hour. So fetch the file before that span.


  • No provision for process batch conversion.
  • Does not support 250 MB files.


Part 3: What is MTS, M2TS, AVI


MTS stands for ‘MPEG Transport Stream’, the file format that uses MPEG-4/H.264 video compression. It is capable of supporting 720 p and 1080i HD video resolutions much easily. The MTS video file is stashed as the Advanced Video Coding High Definition format. This file format is primarily used as Sony, Panasonic HD camcorders. But if you wish to play the MTS file on other platforms, it is best advised to convert MTS file to AVI file kind.


The M2TS filename extension is a container file format that is mainly used for ‘Blu-ray Disc Audio-Video (BDAV) MPEG-2 Transport Stream (M2TS). Several other streams, videos and audios can be multiplexed in M2TS. Hence, it is the most advanced version one can ask for. Technically wise this is based on MPeG-2 transport stream container. It is best known for its high definition video quality on the Blu-ray disc and AVCHD.


The standard de-facto video format for Windows machine is AVI. Created by Windows, the AVI formats stands for Audio Video Interleaved. AVI is a multimedia container format that is capable of storing the audio and video files by using a good range of video codes such as DivX and XviD formats. These files can be produced without lossless file quality, hence no comprises are certainly made on the quality. The AVI files are regarded for its better quality which also impacts the size of the file.

Why Choose UniConverter for Mac/Windows

Free Video Converters
Online Converters
Convert MTS/M2TS to AVI originally Limited support Limited support
Convert MTS/M2TS to most standard and HD video formats
MTS/M2TS to AVI Conversion speed Very Fast Normal Slow
Convert most popular video formats to Youtube Limited support Limited support
The estimated conversion time display
Convert MTS/M2TS to portable devices and online video sites Limited support Limited support
Fetch and Add Movie & TV Show Metadata    
Personalize and edit MTS/M2TS videos Limited support Limited support
Support both Mac/Windows Limited support
24-hour custome support Limited support Limited support
No advertisements Limited support

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Brian Fisher

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How-to > Convert AVI > MTS to AVI: How to Convert MTS to AVI on Mac or Windows