scrcpy/README.md

# scrcpy (v2.1.1)

<img src="app/data/icon.svg" width="128" height="128" alt="scrcpy" align="right" />

_pronounced "**scr**een **c**o**py**"_

This application mirrors Android devices (video and audio) connected via
USB or [over TCP/IP](doc/device.md#tcpip-wireless), and allows to control the
device with the keyboard and the mouse of the computer. It does not require any
_root_ access. It works on _Linux_, _Windows_ and _macOS_.

![screenshot](assets/screenshot-debian-600.jpg)

It focuses on:

 - **lightness**: native, displays only the device screen
 - **performance**: 30~120fps, depending on the device
 - **quality**: 1920×1080 or above
 - **low latency**: [35~70ms][lowlatency]
 - **low startup time**: ~1 second to display the first image
 - **non-intrusiveness**: nothing is left installed on the Android device
 - **user benefits**: no account, no ads, no internet required
 - **freedom**: free and open source software

[lowlatency]: https://github.com/Genymobile/scrcpy/pull/646

Its features include:
 - [audio forwarding](doc/audio.md) (Android >= 11)
 - [recording](doc/recording.md)
 - mirroring with [Android device screen off](doc/device.md#turn-screen-off)
 - [copy-paste](doc/control.md#copy-paste) in both directions
 - [configurable quality](doc/video.md)
 - Android device screen [as a webcam (V4L2)](doc/v4l2.md) (Linux-only)
 - [physical keyboard/mouse simulation (HID)](doc/hid-otg.md)
 - [OTG mode](doc/hid-otg.md#otg)
 - and more…

## Prerequisites

The Android device requires at least API 21 (Android 5.0).

[Audio forwarding](doc/audio.md) is supported for API >= 30 (Android 11+).

Make sure you [enabled USB debugging][enable-adb] on your device(s).

[enable-adb]: https://developer.android.com/studio/debug/dev-options#enable

On some devices, you also need to enable [an additional option][control] `USB
debugging (Security Settings)` (this is an item different from `USB debugging`)
to control it using a keyboard and mouse. Rebooting the device is necessary once
this option is set.

[control]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323

Note that USB debugging is not required to run scrcpy in [OTG
mode](doc/hid-otg.md#otg).


## Get the app

 - [Linux](doc/linux.md)
 - [Windows](doc/windows.md)
 - [macOS](doc/macos.md)


## User documentation

The application provides a lot of features and configuration options. They are
documented in the following pages:

 - [Connection](doc/connection.md)
 - [Video](doc/video.md)
 - [Audio](doc/audio.md)
 - [Control](doc/control.md)
 - [Device](doc/device.md)
 - [Window](doc/window.md)
 - [Recording](doc/recording.md)
 - [Tunnels](doc/tunnels.md)
 - [HID/OTG](doc/hid-otg.md)
 - [Video4Linux](doc/v4l2.md)
 - [Shortcuts](doc/shortcuts.md)


## Resources

 - [FAQ](FAQ.md)
 - [Translations][wiki] (not necessarily up to date)
 - [Build instructions](doc/build.md)
 - [Developers](doc/develop.md)

[wiki]: https://github.com/Genymobile/scrcpy/wiki


## Articles

- [Introducing scrcpy][article-intro]
- [Scrcpy now works wirelessly][article-tcpip]
- [Scrcpy 2.0, with audio][article-scrcpy2]

[article-intro]: https://blog.rom1v.com/2018/03/introducing-scrcpy/
[article-tcpip]: https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/
[article-scrcpy2]: https://blog.rom1v.com/2023/03/scrcpy-2-0-with-audio/

## Contact

If you encounter a bug, please read the [FAQ](FAQ.md) first, then open an [issue].

[issue]: https://github.com/Genymobile/scrcpy/issues

For general questions or discussions, you can also use:

 - Reddit: [`r/scrcpy`](https://www.reddit.com/r/scrcpy)
 - Twitter: [`@scrcpy_app`](https://twitter.com/scrcpy_app)


## Donate

I'm [@rom1v](https://github.com/rom1v), the author and maintainer of _scrcpy_.

If you appreciate this application, you can [support my open source
work][donate]:
 - [GitHub Sponsors](https://github.com/sponsors/rom1v)
 - [Liberapay](https://liberapay.com/rom1v/)
 - [PayPal](https://paypal.me/rom2v)

[donate]: https://blog.rom1v.com/about/#support-my-open-source-work

## Licence

    Copyright (C) 2018 Genymobile
    Copyright (C) 2018-2023 Romain Vimont

    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at

        http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.