Save Video Pixaroma

What it does

Save Image Pixaroma's folder and filename tools with a video encoder behind them. Type or paste a folder, or click Browse to pick one with your own system dialog; leave it empty for ComfyUI's output folder. Build the name from tokens and the line underneath shows the exact file that will be written, before you run anything. Videos never overwrite: the counter carries on from the highest number already in the folder.

Save Mp4 Pixaroma is still there and is unchanged. That one is the quick one; this is the one with folders, naming and settings.

The two formats

The buttons on the node pick both the format and the colour depth together, because whether a video plays depends on the format, not on the number of bits.

MP4

H.264 at 8-bit. Plays on everything, everywhere. This is the default and the safe choice for anything you are sending to someone else.

MP4 HQ

H.265 at 10-bit. Smooth gradients where MP4 would band (skies, fades to black, soft lighting), and roughly half the file size for the same picture. It needs a reasonably recent player, so keep it for your own masters and for footage you will edit or grade.

Why there is no 100 percent

Video is always compressed. An mp4 stores what your eye will accept, not the frames themselves, which is why a few seconds of video is under a megabyte instead of the fifty or so the raw frames would take. So there is no setting here, or in any video tool, that saves your frames untouched.

That is why the Quality slider shows a word rather than a percentage. High is the setting where the difference stops being visible, and it is the standard choice for delivering video: Save Mp4 Pixaroma uses the same one, and it is a little sharper than what ComfyUI's own video saving defaults to. Going above High is not wrong, it just makes a bigger file for something you are unlikely to see.

If you want the picture to hold up to editing and grading afterwards, the setting that genuinely helps is MP4 HQ, because 10-bit keeps gradients smooth. That does more for you than pushing the quality slider up.

About 10-bit

ComfyUI works in far more than 8 bits internally, so saving to 8-bit throws real information away. Where you notice it is banding: a sky or a fade that should be smooth comes out in visible steps. 10-bit keeps that smoothness, and it helps again if you are going to grade the footage afterwards. It does NOT make the picture sharper, which is what people usually expect.

Colour depth lives in the settings and only applies to MP4 HQ. MP4 stays 8-bit on purpose: 10-bit H.264 exists but almost nothing can play it, so offering it would just hand you a file that will not open.

Examples: what to type, and what you get

A fresh node starts with Video_%date:yyyy-MM-dd%_%counter% in the Filename box, which writes Video_2026-08-10_001.mp4. The examples below assume you have CLEARED that and typed the pattern shown, because the chips add to whatever is already there rather than replacing it. The crux, in one line: the SLASH is what makes a folder.

Why some tokens stay as words until you run

The preview line can only show what it already knows. The frame rate is on the node, so %fps% fills in straight away. But %frames%, %duration%, %width% and %height% come from the video itself, so they stay written out as %frames% and so on until the first run, then fill in from then on. %Seed Pixaroma.seed% is the same: it fills in once there is a Seed Pixaroma node in the workflow. Nothing is wrong when you see them spelled out, and the saved file always gets the real values.

The buttons on the node

The orange triangle

Folds the node down to just the video. There is a setting to tuck the buttons away too.

The gear

Opens the settings. Right-clicking the node does the same.

Browse

Picks a folder with your own system dialog. Doing that once approves the folder for good, so afterwards you can type or paste it.

The chips

Add a token at the cursor. The two folder chips add to the FRONT instead, because a folder has to come first.

Open

Opens the video in a new browser tab.

Download

Saves a copy through your browser. Handy in Preview mode, where the only copy is in ComfyUI's temp folder.

Folder

Opens the save folder in your file explorer. The window can appear on the taskbar rather than in front.

Save and Preview

Save writes to your folder on every run. Preview plays the video on the node but writes to ComfyUI's temp folder instead, which is cleared on restart, so you can try things without filling your folder.

Play, the scrub bar, and fullscreen

Under the video. Clicking the picture plays and pauses too, and you can drag anywhere along the bar to move through the clip.

The speaker

Sets how loud the preview plays. Point at it and a slider comes out. Click the speaker to silence it and click again to bring it back at the same level. Whatever level you leave it at is used by every Pixaroma video node from then on, in every workflow, so you only set it once. It belongs to you rather than to the workflow, so sharing a workflow does not carry your volume to anyone else, and changing it never marks a workflow as edited.

In the settings

Quality

Shows a word beside the number: Small file, Medium, High or Maximum. It is NOT a percentage. High is the default and the point where you cannot see the difference; it is also exactly what Save Mp4 Pixaroma uses, so moving a workflow between the two changes nothing. Winding it to Maximum mostly just grows the file.

Colour depth

8 or 10 bit, for MP4 HQ only.

Trim to audio

Ends the video exactly where the sound ends, for when the audio is the master. Off keeps every frame and the sound simply stops when it stops.

Audio fade-in

Fades the sound in at the very start. AI video clips often begin with a click because the model starts the audio at full level in one step; about 120 ms removes it and is too short to hear as a fade. Leave it off when re-saving audio you do not want altered.

Save workflow inside the video

Writes the whole workflow into the mp4, so you can drag the video back onto the canvas later and get the graph back, exactly like dragging a PNG. It is stored the same way ComfyUI's own video saving stores it, so ComfyUI reads it back on its own. Turn it off if you would rather the file carried nothing about how it was made (and leave Add Civitai generation info off too).

Add Civitai generation info

Civitai then shows the prompt, negative prompt, steps, CFG, seed, sampler and model name of the videos you upload. Without it Civitai often shows no prompt at all for a video, or nothing, because it cannot read most custom nodes. With Save workflow on, your workflow stays inside the video as before; with it off, dragging the video back onto the canvas gives a small basic graph with those settings instead of your workflow. Unlike an image, a video cannot link the model or LoRAs to their Civitai pages, because Civitai does not read model fingerprints from videos.

Date style, counter digits

What the + Date chip inserts, and how many digits the counter uses.

Buttons on the node

Hide the ones you never use. The format you are currently saving as always stays visible.

Requirements

This node needs a free tool called ffmpeg to turn the frames into a video. Most ComfyUI setups already have it, because anything else that works with video brings it along, so usually there is nothing to install. Both formats need the frame width and height to be even numbers, and the node says so clearly instead of crashing if they are odd.

Only if you see an "ffmpeg not found" message, add it one of these ways:

• Easiest: in ComfyUI Manager, open its pip install option and enter imageio-ffmpeg.
• Portable ComfyUI (Windows): open a command window in your ComfyUI folder (the one that holds the python_embeded folder) and run python_embeded\python.exe -m pip install imageio-ffmpeg.
• Installed with your own Python (venv or conda): activate that environment and run pip install imageio-ffmpeg.