4 Best MTS to FLV Converters Worth to Use on Desktop and Online

Digitalization makes our life convenient and complex at the same time. Digital videos, for example, enable us to get entertainment everywhere. However, the complicated format system makes people confusing. According to a recent survey, there are over a hundred video formats. Some of them are not compatible in major media players. MTS, stands for MPEG Transport Stream, saves videos in AVCHD format or HD videos on Blu-ray discs. Here are top 4 MTS to FLV converters below.

MTS to FLV Converter

Part 1: Top 4 MTS to FLV Converters

Top 1: Aiseesoft Video Converter Ultimate

The biggest challenge of video conversion is quality loss. Luckily, Aiseesoft Video Converter Ultimate is able to produce high quality output using advanced technology. Moreover, it is pretty easy to learn and use.

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  • Turn MTS video files to other format easily.
  • Support a wide range of output formats including FLV.
  • Enhance video quality automatically.
  • Offer bonus tools, like video editing.


  • It may take a long time to convert a lot of MTS files.

How to Convert MTS Files to FLV in Batch

Step 1: Add MTS files
Firstly, install the best MTS to FLV converter on your disk. It is available to PC and Mac. Launch the converter, and click Add Files menu to open the source MTS files from hard drive or Blu-ray disc.
Add Files
Step 2: Set output format
Click the Convert All to menu at upper right corner to open the format dialog. Search for FLV in Video tab, select it and choose a preset. You can also edit the MTS videos in the video editor window. It can be opened with the Edit button.
Edit Files
Step 3: Convert MTS to FLV
Hit the Folder button at the bottom and select an output location. Finally, click on the Convert All button to begin converting MTS to FLV. A few seconds later, you will find the FLV files in the output location.

Top 2: Aiseesoft Free Online Video Converter

Some people may wonder whether it is possible to convert MTS to FLV without installing desktop software. Aiseesoft Free Online Video Converter is just the answer you are looking for.


  • Totally free of charge.
  • Convert MTS to FLV online.
  • Compatible with popular video formats.
  • Support batch converting.


  • It lacks video editing.

How to Convert MTS to FLV Online

Step 1:
Open https://www.aiseesoft.com/free-online-video-converter/ in a browser. Click Add Files to Convert button to get the launcher.
Add File
Step 2:
Upload MTS files by hitting the Add File button once the launcher pops up. Next, select FLV at the bottom.
Step 3:
Click Convert button to initiate converting MTS to FLV. Finally, download the FLV files.



FFMPEG is a free MTS to FLV converter for Windows, Mac and Linux. It relies on program language to convert video file formats. Therefore tech-savvy prefer to this free video converter.


  • Convert MTS to FLV with commands.
  • Support MTS, FLV and other video formats.
  • Batch convert video files quickly.


  • It is difficult to learn for beginners.
  • Any wrong in command will damage your videos.

Top 4: VLC


As an open-source media player, VLC is popular around the world. In fact, it includes a variety of bonus features, such as convert video formats, Therefore, it is a free MTS to FLV converter too.


  • Free to use for full features.
  • Convert an MTS file to FLV or other formats.
  • Play and download online videos.


  • The output quality is not very good.
  • It takes as long as the video length to convert it.

Part 2: FAQs about MTS to FLV Converter

How to convert MTS to FLV in HandBrake?

Sorry, you cannot convert MTS to FLV with HandBrake. The open-source video converter only supports two output formats, MP4 and MKV. Therefore, you have to look for other MTS video converter software.

How to open MTS files?

The software in Sony and Panasonic HD cameras is able to open MTS files. Plus, you can open MTS with a supported video player, such as GOM Player, VLC, and more. Click here to know more MTS players.

Is it possible to convert MTS files without losing quality?

MTS is a HD video file extension. When converting MTS files to other format, the converter software almost determines the output quality. Therefore, you should use a powerful MTS converter if you mind the video format.


This article has shared top 4 best MTS to FLV converters for Windows, Mac and Linux. Some of them are free of charge, like Aiseesoft Free Online Video Converter. However, the best way to protect video quality when converting MTS is Aiseesoft Video Converter Ultimate. Moreover, the clear design enables beginners to learn quickly. More questions? Please leave a message in the comment area below this post.

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MTS Converter

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Video Converter Ultimate is excellent video converter, editor and enhancer to convert, enhance and edit videos and music in 1000 formats and more.

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