On Android 14, a separate process was spawn on every display mode request (to turn the screen off or on). But starting a java process takes time (a few hundred milliseconds), causing a noticeable latency between the request to turn the screen off (MOD+o) or on (MOD+Shift+o) and the actual power mode change. To minimize this latency, keep the process alive between requests, so that only the first one will have to spawn the process. It would be possible to spawn the process in advance, so that even the first request would be immediate, but any problem would impact all Android 14 users even without using the "turn screen off" feature. PR #4446 <https://github.com/Genymobile/scrcpy/pull/4446>
scrcpy (v2.2)
pronounced "screen copy"
This application mirrors Android devices (video and audio) connected via USB or over TCP/IP, 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.
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
- 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
Its features include:
- audio forwarding (Android 11+)
- recording
- mirroring with Android device screen off
- copy-paste in both directions
- configurable quality
- camera mirroring (Android 12+)
- mirroring as a webcam (V4L2) (Linux-only)
- physical keyboard/mouse simulation (HID)
- OTG mode
- and more…
Prerequisites
The Android device requires at least API 21 (Android 5.0).
Audio forwarding is supported for API >= 30 (Android 11+).
Make sure you enabled USB debugging on your device(s).
On some devices, you also need to enable an additional option 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.
Note that USB debugging is not required to run scrcpy in OTG mode.
Get the app
User documentation
The application provides a lot of features and configuration options. They are documented in the following pages:
Resources
- FAQ
- Translations (not necessarily up to date)
- Build instructions
- Developers
Articles
Contact
If you encounter a bug, please read the FAQ first, then open an issue.
For general questions or discussions, you can also use:
- Reddit:
r/scrcpy
- Twitter:
@scrcpy_app
Donate
I'm @rom1v, the author and maintainer of scrcpy.
If you appreciate this application, you can 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.