# Batch Rewrap

Batch remux media files with stream copy.

> Canonical page: https://elysiatools.com/en/tools/batch-rewrap

- **Category:** Media

- **Keywords:** batch, rewrap, remux, zip

## Overview

Runs -c copy rewraps for multiple files and returns a ZIP archive.

## Inputs

- **Media Files** (file)
- **Output Container** (select)

## When to use

- When you need to change the container format of multiple video or audio files without losing quality through re-encoding.
- When you want to quickly prepare media files for editing software or players that only support specific containers like MP4 or MOV.
- When you have a batch of files to remux and want to download them all at once in a single ZIP archive.

## How it works

- Upload up to 30 media files (audio or video) using the file selector.
- Choose your desired output container format, such as MP4, MKV, MOV, or WebM.
- The tool runs a stream copy operation to remux the files without re-encoding the audio or video tracks.
- Download the processed files packaged together in a single ZIP archive.

## Use cases

- Remuxing MKV recordings from OBS Studio into MP4 format for compatibility with video editors like Adobe Premiere Pro.
- Changing MOV files from a camera into MKV containers for better compatibility with home media servers.
- Batch converting WebM video clips into MP4 format for easier sharing on social media platforms.

## Frequently asked questions

### Does this tool re-encode my video or audio files?

No, it uses stream copy to change the container format without re-encoding, preserving original quality and processing files almost instantly.

### What output container formats are supported?

You can choose between MP4, MKV, MOV, and WebM as the output container.

### Is there a limit on the number of files I can upload?

Yes, you can upload up to 30 media files at a time, with a maximum total file size limit of 100MB.

### Why did I receive a ZIP file instead of individual media files?

The tool packages all remuxed files into a single ZIP archive to make downloading multiple files faster and more convenient.

### Can I convert video to audio using this tool?

No, this tool only changes the container format (remuxing) and does not transcode or extract audio tracks from video streams.

## Related tools

- [Extract Center Channel](https://elysiatools.com/en/tools/audio-center-channel-extract): Extract the center channel from a surround audio file or video audio track
- [Seamless Ambience Loop](https://elysiatools.com/en/tools/audio-seamless-ambience-loop): Turn a field recording into one seamless loop for games, meditation apps, or video background beds — quiet-seam placement, long equal-power crossfade, optional high-pass.
- [Audio Spectrogram Generator](https://elysiatools.com/en/tools/audio-spectrogram-generator): Generate a spectrogram image from an audio file or a video audio track
- [AVI to MP4 Converter](https://elysiatools.com/en/tools/avi-to-mp4): Convert AVI video files to MP4 format
- [Image Sequence to Video](https://elysiatools.com/en/tools/image-sequence-to-video): Convert uploaded image files or a ZIP archive of frames into a video, sorted naturally by filename
- [MKV to MP4 Converter](https://elysiatools.com/en/tools/mkv-to-mp4): Convert MKV video files to MP4 format
- [MP4 to AVI Converter](https://elysiatools.com/en/tools/mp4-to-avi): Convert MP4 video files to AVI format
- [MP4 to MKV Converter](https://elysiatools.com/en/tools/mp4-to-mkv): Convert MP4 video files to MKV format

## Samples

- [Bevy Game Engine Samples](https://elysiatools.com/en/samples/bevy-samples): Bevy Rust game engine examples with ECS, 2D/3D graphics, audio, and game mechanics implementations
- [Godot Engine Samples](https://elysiatools.com/en/samples/godot): Godot Engine examples including 2D/3D games, GDScript, C#, and engine features
- [WebRTC Real-Time Communication Samples](https://elysiatools.com/en/samples/webrtc-samples): Comprehensive WebRTC samples for peer-to-peer audio/video communication, data channels, screen sharing, and signaling server implementation
- [Arduino Development](https://elysiatools.com/en/samples/arduino): Comprehensive Arduino development examples including microcontroller programming, sensor and actuator control, robotics projects, and real-time system design

## Related content

- [Stream Copy, Remux, and Media Packaging](https://elysiatools.com/en/hubs/stream-copy-remux-and-media-packaging): Inspect streams, remux containers, trim by timestamp, mux tracks, softmux subtitles, embed cover art, and batch rewrap media while preserving source quality.