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&label
&showlabels
&fontsize
&style
&meterstyle
&cleanoutput
&cleanish
&css
&base64css
&mirror
&flip
&rounded
&margin
&darkmode
&lightmode
&chroma
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&js
&rotate
&grid
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&obsoff
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&mirror
Inverts the video so it is the mirror reflection
General Option! (&push, &room, &view, &scene)

Options

Value
Description
(no value given)
Mirroring is forced for all videos
0
Preview video is mirrored only (excluding rear cameras and OBS Virtualcam/NDI)
1
Mirroring is forced for all videos
2
Inverts the default; local previews are not mirrored, but guests are mirrored
3
Same as default, except everything is mirrored, including text - useful for teleprompters

Details

Mirroring does not work if using the browser's native video full-screen button. Use &effects=2 instead for this use case.
Try F11 or the Electron Capture app (right-click → fullscreen) to hide the browser menu instead.
​

Alternative method for mirroring and flipping

If you are looking for a form of rotation and flipping that rotates the actual video, rather than relying on CSS to achieve it, you can check out the sender-side &effects options. https://vdo.ninja/beta/?effects=-1, which will flip the video https://vdo.ninja/beta/?effects=-2, which will flip and mirror the video https://vdo.ninja/beta/?effects=2, which will mirror the video Effects however may increase CPU/GPU usage, and could cause frame rate instability, especially if the browser tab is not in active focus.
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