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Composite and edit

Edit video with single-purpose video nodes

Video nodes in Nodespell are single-purpose graph nodes that change one video in one way: trim it, join clips, resize, retime, reverse, transform, transcode, or extract a still frame. Each node takes a video input, runs in your browser, and outputs a new video or image, so the edit stays in your graph and you can run it again on a new take.

All of these nodes are in the Tab menu under their names. Each one leaves the source video unchanged.

Node What it does Output
Trim Video Cuts from the start and end, or reduces the clip to a target length MP4 video
Join Video Joins connected videos end to end in connection order MP4 video
Resize Video Changes the frame size by preset, scale, custom size or a reference input MP4 video
Retime Video Changes playback speed, or fits the clip to a target duration MP4 video
Reverse Video Plays the clip backwards MP4 video
Transform Video Scales, moves, rotates, skews or mirrors the picture inside its frame MP4 video
Transcode Video Re-encodes to MP4, MOV, WebM or MKV with quality, size, frame-rate and audio controls Video in the chosen format
Extract Frame Takes one still from the video Image

Upscaling a video is an AI model task rather than a video node; see Video Upscaler.

You do not have to search the Tab menu. Open a video result in the full-screen viewer, or right-click a node that outputs video. The video tools there are Trim, Extract frame, and, under More tools (Add as a node), Transcode Video, Resize, Speed, Reverse and Upscale. Choosing one adds the matching node after the current one and connects it.

  1. Add a Trim Video node after the video, or choose Trim in the full-screen video viewer.
  2. Drag the start and end handles to choose what to keep. The readout shows Keeps with the kept length and frame count.
  3. In the full-screen viewer, select Create Trim Video to add the connected node. On an existing node, changes save as you drag.

To trim an existing Trim Video node visually, right-click it and choose Edit Trim. The trimmer has these keys:

Key Action
Space Play or pause
I / O Set the In or Out point to the playhead
Left / Right Step one frame (Shift steps one second)
Home / End Jump to the start or end

Trim Video parameters:

Parameter Options
Trim mode Start and end (default) or Target length
Unit Seconds or Frames
Trim from start / Trim from end Amount to remove at each end
Target source Enter length, or Reference input to match the duration of a connected video or audio on Length reference
Trim direction Trim end, Trim start or Trim symmetrically when reducing to a target length
  • Join Video takes several videos on its Videos input in connection order. Resolution can Use largest (default), Use smallest, Use most common, Use first input, Use last input, or Custom. Fit mode is Fit, Fill or Stretch. Export audio and Audio gain control the joined sound.
  • Resize Video sets the size by Size preset (4K, HD, 720p and square, in landscape or portrait), Scale factor (0.05 to 8), Custom size (2 to 8,192 px), or Reference, which copies the size of a connected image or video.
  • Retime Video sets Speed (0.1 to 10) or a target Duration in seconds. Retime audio keeps the sound in step.
  • Reverse Video has one option, Reverse audio, which is off by default.

Transcode Video re-encodes on your device. Choose Format (MP4, MOV, WebM, MKV), Rate control (Quality, Bitrate or Approximate file size), Video codec (available codecs depend on your browser), Maximum size, Maximum frame rate, and audio options. It never enlarges the picture or raises the frame rate. It accepts SDR video up to 256 MiB and does not keep transparency.

Extract Frame outputs one image. Choose First Frame, Last Frame, By Frame Number, By Timestamp or By Percentage. Frame numbers and timestamps accept negative values to count from the end. In the full-screen video viewer, Create Extract Frame node grabs the frame you are on.

Should I use the Timeline or a video node?

Section titled “Should I use the Timeline or a video node?”
Use a video node when Use the Timeline when
One clip needs one change: trim, resize, speed, reverse, format You are cutting several clips together with precise placement
The same edit should apply to each new take you run You need separate audio tracks, fades, mixing or EQ
You are joining clips back to back with no overlap You need overlaps, per-clip framing, opacity or blend modes
You are preparing a clip for another model’s input You want to scrub and review the cut while editing

You can combine both: trim or retime clips with nodes, then connect them to a Timeline to assemble the cut.

The video nodes on this page process video in your browser rather than running an AI model. Upscaling is a model task and shows its own estimate.

Why does Transcode Video offer fewer codecs than I expect?

Section titled “Why does Transcode Video offer fewer codecs than I expect?”

The codecs come from your browser’s encoder support. WebM needs VP8, VP9 or AV1; choose Auto if a combination is not available.

Join Video uses the order of the connections to its Videos input.

Yes. Set Unit to Frames on the Trim Video node, or set Show times as to Frames in the trimmer.