Convert AVCHD video files (MTS) online for free
The converter easily converts your MTS videos to various formats - free and online. No VLC media player or or other Video software needed.
To convert other file formats to the "High-Definition Video Container" file type, you need software like VLC media player or a similar tool.
The .MTS file format is an AVCHD (Advanced Video Coding High Definition) video transport stream. Originally developed jointly by Sony and Panasonic in 2006, this format is heavily utilized by consumer HD camcorders to capture high-resolution 1080i and 1080p video. It relies on a modified MPEG-2 transport stream container, utilizing the H.264/MPEG-4 AVC codec for video compression and Dolby Digital (AC-3) or uncompressed LPCM for audio.
Opening .MTS natively is notoriously frustrating on standard consumer devices. While robust media players like VLC media player and open-source command-line tools like FFmpeg handle the transport stream well, native Windows and macOS applications often fail to decode the video without installing third-party codec packs. Professional editors like Adobe Premiere Pro support it natively, but they require expensive monthly subscriptions.
The main disadvantage of the .MTS format is its lack of universal compatibility and massive file size. Because it is a raw transport stream, these files are generally too heavy to share via email or messaging apps. Furthermore, .MTS is completely unsupported by modern web browsers, meaning you cannot upload the raw file directly to a basic website or view it natively on an iPhone or Android device.
To make your camcorder footage usable, you must convert it. For universal web and mobile compatibility, convert your .MTS file to MP4 (using H.264/AAC). If you want to archive the raw footage without compression loss, remux it into an MKV container. Mac users editing in Final Cut Pro should convert to MOV. Drop your file here to analyze and convert it securely right in your browser - free, online, and without installing clunky software.
Use Convert.Guru to open and convert your MTS file.
Users also converted AVCHD, BDMV, AC3, VLC, CPI, TDT, MTV, MPL, BDM, WTS, CED, MTC and MTF files.
If you want to convert MTS file to M4A, you can use VLC media player or similar software from the "HD Video Recording Storage" category. In the File menu, look for Save As… or Export….
To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to MTS, try VLC media player or another comparable tool in the "HD Video Recording Storage" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our MTS converter.