Convert MTS to MP3

MTS to MP3 converter that runs entirely in your browser. 100% free, no signup, no upload — your files never leave your device. One-click batch conversion.

Conversions

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

MP3

MP3 (MPEG-1 Audio Layer III) is the most popular lossy audio compression format, designed by the Moving Picture Experts Group. It drastically reduces file size while preserving near-CD quality by discarding sounds that are inaudible to most listeners. MP3 is supported by virtually every audio player, device, and platform ever made.

Developer
ISO/IEC (MPEG)
Initial release
1993
Compression
Lossy
Color depth
up to 24-bit
Transparency
No
Animation
No

Best for

  • Playing music on any device
  • Sharing audio online
  • Podcast distribution
  • Portable music libraries
  • Universal audio compatibility

Pros

  • +Supported by virtually every audio player
  • +Drastic file-size reduction from source
  • +Adjustable bitrate for quality/size balance
  • +Open and widely documented

Cons

  • −Lossy compression discards audio data
  • −Lower quality than AAC at same bitrate
  • −No multi-track support
  • −Generational loss on re-encoding

How to convert MTS to MP3

  1. 1

    Select MTS files from your computer, Google Drive, Dropbox, a URL, or by dragging them onto the page.

  2. 2

    Choose mp3 — or any other format you need as a result (more than 200 formats supported).

  3. 3

    Let the file convert, then download your mp3 file right away.

MTS vs MP3

PropertyMTSMP3
CompressionLossyLossy
Color depthup to 12-bitup to 24-bit
Multi-trackYesNo
DRM supportNoNo
Open formatNoYes

When to use MTS vs MP3

MTS

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

MP3

  • Playing music on any device
  • Sharing audio online
  • Podcast distribution
  • Portable music libraries
  • Universal audio compatibility

Use cases for MTS → MP3

  • AVCHD camcorder file playback
  • Editing Sony and Panasonic footage
  • Archiving consumer HD recordings
  • Converting camcorder video to MP4
  • High-definition home video storage
  • Playing music on any device
  • Sharing audio online
  • Podcast distribution
  • Portable music libraries
  • Universal audio compatibility

Frequently Asked Questions

Is converting MTS to MP3 free?
Yes. This MTS → MP3 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 MP3?
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 → MP3 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 MP3 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 MP3 reduce the quality?
Because both formats use lossy compression, the MP3 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 MP3 support transparency?
No — MP3 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 MP3?
Both formats use comparable compression, so the MP3 output will be similar in size to your MTS file — typically within 10–20% of each other.

Related Conversions

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FREE

100% Free

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SIGNUP

No Signup Required

Start converting immediately without creating an account or sharing email address.

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.

USER REVIEWS

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