SaveVideo - ComfyUI Built-in Node Documentation

The Save Video node saves the input video to your ComfyUI output directory.

The Save Video node saves the input video to your ComfyUI output directory. You can choose the file name prefix, the container format, the video codec, and encoding options such as quality. The node automatically generates a unique file name using a counter and can embed workflow metadata in the saved file.

Inputs

Common Inputs

Parameter	Description	Data Type	Required	Range
video	The video to save.	VIDEO	Yes	-
filename_prefix	The prefix for the file to save. This may include formatting information such as %date:yyyy-MM-dd% or %Empty Latent Image.width% to include values from nodes (default: video/ComfyUI).	STRING	Yes	-
format	The output container. Auto uses MP4 for Auto/H.264 and WebM for AV1. MP4, MKV, and WebM select a specific container. Selecting a format also determines which codec options are available (default: auto).	DYNAMIC_COMBO	Yes	"auto" "mp4" "mkv" "webm"
codec	The output video codec. Auto preserves a compatible source stream. H.264 and AV1 re-encoding support SDR, HDR (HLG), and HDR PQ. Appears after a format is selected (default: auto).	DYNAMIC_COMBO	No	"auto" "h264" "av1"

H.264 Inputs

These inputs appear when codec is "h264" and are available with the auto, mp4, and mkv formats.

Parameter	Description	Data Type	Required	Range
encoding	Automatic preserves compatible H.264 streams. Re-encode applies custom encoding options.	DYNAMIC_COMBO	No	"auto" "re-encode"
crf	Lower values produce higher quality and larger files. Appears when encoding is "re-encode" (default: 23.0).	FLOAT	No	0.0 to 51.0

AV1 Inputs

These inputs appear when codec is "av1" and are available with the auto, mp4, mkv, and webm formats.

Parameter	Description	Data Type	Required	Range
encoding	Automatic preserves compatible AV1 streams. Re-encode applies custom encoding options.	DYNAMIC_COMBO	No	"auto" "re-encode"
crf	Lower values produce higher quality and larger files. Appears when encoding is "re-encode" (default: 30.0).	FLOAT	No	0.0 to 63.0

Note: When format is "auto", the saved container is chosen automatically: av1 produces WebM, while auto and h264 produce MP4. The webm format only allows the auto and av1 codecs. When codec is "auto", the source video stream is preserved rather than re-encoded. The saved file uses a counter suffix to avoid overwriting existing files.

Outputs

Output Name	Description	Data Type
video	The input video, unchanged.	VIDEO
ui	A preview of the saved video file, including the file path and subfolder information for display in the UI.	PREVIEW_VIDEO

This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! Edit on GitHub

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