# ReMux Bot

> Convert MKV to MP4 for iPhone, Apple TV and AirPlay — no re-encoding, no quality loss, just a few clicks.

Version 2.0 · $2.99 on the Mac App Store · macOS 14.0 or later · universal binary (Apple Silicon and Intel) · published by EXE LLC.

## Features

Experience hassle-free video conversion with ReMux Bot, your MKV files are smoothly converted to MP4 without any loss in quality. ReMux Bot makes file compatibility issues a thing of the past.

- **Fast Performance** — Don’t wait around for your videos to convert with transcoding. ReMux Bot maximizes efficiency, rapidly remuxing your videos up to 120× faster than transcoding
- **GPU Accelerated** — Powered by the latest advancements in video processing technology, ReMux optimizes your videos for playback on any device, enhancing both visual quality and compatibility.
- **Compatible with x264 and x265 Video Files** — With x264 and x265 support, your video files will be remuxed to support AppleTV and iOS playback at highest resolutions, and maximum device compatibility.
- **Works 100% Offline** — Your files never leave your computer. 100% private.

## New in 2.0

- **Subtitle support** — Preserve SRT and ASS subtitles when converting to MP4.
- **Apple TV-ready badge** — See at a glance whether your output will play natively on Apple TV and iPhone.
- **Smart compatibility checks** — Get warned before convert if your codec won't fit your chosen container.
- **Liquid Glass interface** — Redesigned for macOS Tahoe, with a graceful fallback on macOS 14+.
- **Now in 10 languages** — Fully localized in English, Simplified Chinese, Japanese, Korean, German, French, Italian, Spanish, Brazilian Portuguese and Russian.
- **Better diagnostics** — When something goes wrong, view and copy the exact FFmpeg log.

## Frequently asked questions

### Does ReMux Bot re-encode my videos?

No. It remuxes: the existing video and audio streams are copied into a new MP4 container rather than re-compressed. Because nothing is re-encoded there is no loss in quality, and conversion runs up to 120× faster than transcoding.

### Will the converted files play on iPhone, Apple TV and AirPlay?

Yes — that is what the conversion is for. Version 2.0 also shows an Apple TV-ready badge so you can see at a glance whether the output will play natively, and warns you before converting if your codec will not fit the container you chose.

### Are my video files uploaded anywhere?

No. ReMux Bot works 100% offline and has no network functionality at all. Your files are read and written on your own Mac and never leave it, and the app collects no data or telemetry.

### Which video codecs are supported?

H.264 (x264) and H.265 (x265) sources, remuxed at their original resolution for Apple TV and iOS playback and maximum device compatibility.

### Are subtitles preserved?

Yes. Version 2.0 preserves SRT and ASS subtitles when converting to MP4.

### What does ReMux Bot cost, and what does it require?

It is $2.99 on the Mac App Store. It requires macOS 14.0 or later and ships as a universal binary, so it runs natively on both Apple Silicon and Intel Macs.

### Is the app available in my language?

It is fully localized in 10 languages: English, Simplified Chinese, Japanese, Korean, German, French, Italian, Spanish, Brazilian Portuguese and Russian.

### What happens if a conversion fails?

You can view and copy the exact FFmpeg log for the failed conversion, so the cause is visible rather than hidden behind a generic error.

## Download

[Available on MacOS App Store](https://apps.apple.com/us/app/remux-bot-mkv2mp4/id6504720337) — $2.99 USD.