Convert MTS to AVI

MTS to AVI converter that runs entirely in your browser. 100% free, no signup, no upload — your files never leave your device. One-click batch conversion.

Conversions

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All file types supported

About formats

MTS

MTS is the file extension used for MPEG-2 Transport Stream files recorded by AVCHD camcorders. MTS files contain H.264 video and AC-3 or PCM audio and are commonly produced by Sony, Panasonic, and other consumer camcorders.

Developer: Sony / Panasonic
Initial release: 2006
Compression: Lossy
Color depth: up to 12-bit
Transparency: No
Animation: Yes

Best for

AVCHD camcorder file playback
Editing Sony and Panasonic footage
Archiving consumer HD recordings
Converting camcorder video to MP4
High-definition home video storage

Pros

+Standard AVCHD camcorder output
+Contains H.264 video and AC-3/PCM audio
+Good HD quality in compact files
+Recognized by VLC and editing tools

Cons

−Tied to AVCHD folder conventions
−Less convenient than MP4 for sharing
−Limited metadata support
−Aging format for modern cameras

AVI

AVI (Audio Video Interleave) is one of the oldest and most recognized multimedia container formats, introduced by Microsoft in November 1992 as part of its Video for Windows technology. Built on the Resource Interchange File Format (RIFF) structure, AVI interleaves audio and video data in alternating chunks, allowing synchronized playback without requiring sophisticated stream management. The format is codec-agnostic, meaning it can hold video compressed with virtually any codec, from early Cinepak and Indeo to modern DivX, Xvid, and H.264 streams. This flexibility contributed to widespread adoption across personal computers throughout the 1990s and 2000s. AVI supports multiple audio streams, enabling multilingual content within a single file. Despite being decades old, AVI remains one of the most universally recognized multimedia formats and is still widely supported by media players and editing tools across all major operating systems.

Developer: Microsoft
Initial release: November 10, 1992
Compression: Lossy
Color depth: up to 10-bit
Transparency: No
Animation: Yes

Best for

Archiving legacy video footage
Editing in older video software
Storing multiple audio tracks
Playback on classic media players
Cross-codec video container use

Pros

+Codec-agnostic — accepts nearly any video codec
+Supports multiple audio streams for multilingual content
+Universally recognized by media players and editors
+Simple RIFF chunk structure easy to parse

Cons

−No modern streaming or chapter metadata support
−Files tend to be large with inefficient codecs
−No built-in subtitle standard
−Lacks DRM and modern container features

How to convert MTS to AVI

1
Select MTS files from your computer, Google Drive, Dropbox, a URL, or by dragging them onto the page.
2
Choose avi — or any other format you need as a result (more than 200 formats supported).
3
Let the file convert, then download your avi file right away.

MTS vs AVI

Property	MTS	AVI
Compression	Lossy	Lossy
Color depth	up to 12-bit	up to 10-bit
Multi-track	Yes	Yes
DRM support	No	No
Open format	No	No

When to use MTS vs AVI

MTS

AVCHD camcorder file playback
Editing Sony and Panasonic footage
Archiving consumer HD recordings
Converting camcorder video to MP4
High-definition home video storage

AVI

Archiving legacy video footage
Editing in older video software
Storing multiple audio tracks
Playback on classic media players
Cross-codec video container use

Use cases for MTS → AVI

AVCHD camcorder file playback
Editing Sony and Panasonic footage
Archiving consumer HD recordings
Converting camcorder video to MP4
High-definition home video storage
Archiving legacy video footage
Editing in older video software
Storing multiple audio tracks
Playback on classic media players
Cross-codec video container use

Frequently Asked Questions

Is converting MTS to AVI free?

Yes. This MTS → AVI converter runs entirely in your browser and is completely free — no account, no credits, no watermark.

Which devices and platforms can I use to convert MTS to AVI?

Any modern device with a current web browser: Windows, macOS, Linux, Android, iPhone and iPad. There is nothing to install — the conversion happens locally.

Are my MTS files uploaded to a server?

No. Files never leave your device. The entire MTS → AVI conversion runs locally in your browser, so your data stays private.

Can I convert multiple MTS files at once?

Yes — batch conversion is supported. Add as many MTS files as you like and convert them to AVI in one pass, then download the results together.

What is the maximum file size?

There is no fixed server-side limit because the conversion happens in your browser. Practical limits depend on the available memory and CPU of your device.

Will converting MTS to AVI reduce the quality?

Because both formats use lossy compression, the AVI output will not bring back any quality that has already been lost in your MTS file. Avoid repeated re-encoding to keep the best quality.

Does AVI support transparency?

No — AVI has no alpha channel. Transparent areas of your MTS file will be filled with a solid background colour in the converted file.

How will the file size change after converting MTS to AVI?

Both formats use comparable compression, so the AVI output will be similar in size to your MTS file — typically within 10–20% of each other.

Related Conversions

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FREE

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SIGNUP

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PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

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Convert MTS to AVI Quality Rating

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