# Convert MTS to FLAC

> Convert MTS to FLAC online for free. Runs entirely in your browser, so your files never leave your device. Fast batch conversion, no sign-up, no watermarks.

URL: https://www.converterrr.com/mts-to-flac

- Runs in the browser with WebCodecs: files are not uploaded, and no credits are used.
- Engines: WebCodecs (browser), FFmpeg (WASM) (browser), FFmpeg (cloud).
- API: available. `POST /api/v1/jobs` with `"output_format": "flac"` (paid plans).
- More: [Video converter](https://www.converterrr.com/video-converter), [MTS converter](https://www.converterrr.com/mts-converter).

## How to convert MTS to FLAC

1. **Add your MTS files.** Drag and drop MTS files onto the converter, paste them, or click to browse. You can add several at once.
2. **Choose FLAC.** FLAC is already selected. Open Options if you want to change quality, size or metadata.
3. **Convert.** Click Convert. Your files are converted right in your browser in seconds.
4. **Download your FLAC.** Download each FLAC file, or everything at once as a ZIP.

## Good to know

- Only the audio track is kept — the result is an FLAC file you can play anywhere. Use Options to pick a bitrate.
- MTS files are typically used for camcorder footage, while FLAC is best for archiving CDs and high-fidelity music libraries.
- This conversion runs on WebCodecs, running locally in your browser — nothing is uploaded and it works even on slow connections.

## MTS vs FLAC

|  | MTS | FLAC |
| --- | --- | --- |
| Full name | AVCHD Video | Free Lossless Audio Codec |
| Type | Video | Audio |
| Extensions | .mts | .flac |
| MIME type | video/mp2t | audio/flac |
| Best for | camcorder footage | archiving CDs and high-fidelity music libraries |
| Properties | – | lossless, open standard |

**MTS:** MTS is the AVCHD format recorded by Sony and Panasonic HD camcorders.

**FLAC:** FLAC compresses audio without losing any quality, typically halving the size of a WAV file.

## Related conversions

- [MTS to MP4](https://www.converterrr.com/mts-to-mp4) (in the browser)
- [MP3 to FLAC](https://www.converterrr.com/mp3-to-flac) (in the browser)
- [MTS to MP3](https://www.converterrr.com/mts-to-mp3) (in the browser)
- [MP4 to FLAC](https://www.converterrr.com/mp4-to-flac) (in the browser)
- [MTS to WebP](https://www.converterrr.com/mts-to-webp) (in the browser)
- [WAV to FLAC](https://www.converterrr.com/wav-to-flac) (in the browser)
- [MTS to MOV](https://www.converterrr.com/mts-to-mov) (in the browser)
- [MOV to FLAC](https://www.converterrr.com/mov-to-flac) (in the browser)
- [MTS to GIF](https://www.converterrr.com/mts-to-gif) (in the browser)
- [M4A to FLAC](https://www.converterrr.com/m4a-to-flac) (in the browser)
- [MTS to WAV](https://www.converterrr.com/mts-to-wav) (in the browser)
- [WebM to FLAC](https://www.converterrr.com/webm-to-flac) (in the browser)

## Convert MTS to other formats

[MTS to MP4](https://www.converterrr.com/mts-to-mp4), [MTS to MP3](https://www.converterrr.com/mts-to-mp3), [MTS to WebP](https://www.converterrr.com/mts-to-webp), [MTS to MOV](https://www.converterrr.com/mts-to-mov), [MTS to GIF](https://www.converterrr.com/mts-to-gif), [MTS to WAV](https://www.converterrr.com/mts-to-wav), [MTS to WebM](https://www.converterrr.com/mts-to-webm), [MTS to MKV](https://www.converterrr.com/mts-to-mkv), [MTS to M4A](https://www.converterrr.com/mts-to-m4a), [MTS to AVI](https://www.converterrr.com/mts-to-avi), [MTS to AAC](https://www.converterrr.com/mts-to-aac), [MTS to OGG](https://www.converterrr.com/mts-to-ogg), [MTS to WMV](https://www.converterrr.com/mts-to-wmv), [MTS to Opus](https://www.converterrr.com/mts-to-opus), [MTS to M4V](https://www.converterrr.com/mts-to-m4v), [MTS to FLV](https://www.converterrr.com/mts-to-flv), [MTS to MPEG](https://www.converterrr.com/mts-to-mpeg), [MTS to 3GP](https://www.converterrr.com/mts-to-3gp), [MTS to WMA](https://www.converterrr.com/mts-to-wma), [MTS to TS](https://www.converterrr.com/mts-to-ts), [MTS to MPG](https://www.converterrr.com/mts-to-mpg), [MTS to AIFF](https://www.converterrr.com/mts-to-aiff), [MTS to AMR](https://www.converterrr.com/mts-to-amr), [MTS to VOB](https://www.converterrr.com/mts-to-vob)

## Convert other formats to FLAC

[MP3 to FLAC](https://www.converterrr.com/mp3-to-flac), [MP4 to FLAC](https://www.converterrr.com/mp4-to-flac), [WAV to FLAC](https://www.converterrr.com/wav-to-flac), [MOV to FLAC](https://www.converterrr.com/mov-to-flac), [M4A to FLAC](https://www.converterrr.com/m4a-to-flac), [WebM to FLAC](https://www.converterrr.com/webm-to-flac), [MKV to FLAC](https://www.converterrr.com/mkv-to-flac), [AAC to FLAC](https://www.converterrr.com/aac-to-flac), [AVI to FLAC](https://www.converterrr.com/avi-to-flac), [OGG to FLAC](https://www.converterrr.com/ogg-to-flac), [WMV to FLAC](https://www.converterrr.com/wmv-to-flac), [Opus to FLAC](https://www.converterrr.com/opus-to-flac), [WMA to FLAC](https://www.converterrr.com/wma-to-flac), [M4V to FLAC](https://www.converterrr.com/m4v-to-flac), [3GP to FLAC](https://www.converterrr.com/3gp-to-flac), [FLV to FLAC](https://www.converterrr.com/flv-to-flac), [MPEG to FLAC](https://www.converterrr.com/mpeg-to-flac), [AIFF to FLAC](https://www.converterrr.com/aiff-to-flac), [AMR to FLAC](https://www.converterrr.com/amr-to-flac), [TS to FLAC](https://www.converterrr.com/ts-to-flac), [MPG to FLAC](https://www.converterrr.com/mpg-to-flac), [M4B to FLAC](https://www.converterrr.com/m4b-to-flac), [VOB to FLAC](https://www.converterrr.com/vob-to-flac), [M2TS to FLAC](https://www.converterrr.com/m2ts-to-flac)

## MTS to FLAC: frequently asked questions

### How do I convert MTS to FLAC?

Drop your MTS file onto the converter above, make sure FLAC is selected, and click Convert. When it's done, download the FLAC file — it usually takes a few seconds.

### Is it safe to convert MTS to FLAC here?

Yes. MTS to FLAC conversion happens entirely inside your browser using WebAssembly, so your file is never uploaded to any server.

### Is the MTS to FLAC converter free?

Yes — free with no watermark. Signed-out visitors can convert 25 files a day, and a free account raises that to 250.

### Will converting MTS to FLAC reduce quality?

No — FLAC preserves the content of your MTS file as faithfully as the format allows.

### Can I convert multiple MTS files at once?

Yes. Add up to 5 files at a time without an account, 10 with a free account and up to 500 on paid plans, then download them individually or as a single ZIP.