SaveWEBM - ComfyUI Built-in Node Documentation

The SaveWEBM node saves a sequence of images as a WEBM video file. It takes multiple input images and encodes them into a video using either VP9 or AV1 codec with configurable quality settings and frame rate. The resulting video file is saved to the output directory with metadata including prompt information.

Inputs

Parameter	Description	Data Type	Required	Range
`images`	Sequence of input images to encode as video frames	IMAGE	Yes	-
`filename_prefix`	Prefix for the output filename (default: “ComfyUI”)	STRING	No	-
`codec`	Video codec to use for encoding	COMBO	Yes	”vp9" "av1”
`fps`	Frame rate for the output video (default: 24.0)	FLOAT	No	0.01-1000.0
`crf`	Quality setting where higher crf means lower quality with smaller file size, lower crf means higher quality with larger file size (default: 32.0)	FLOAT	No	0-63.0

Outputs

Output Name	Description	Data Type
`ui`	Video preview showing the saved WEBM file	PREVIEW

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Inputs

Outputs