CRT-Nodes for ComfyUI

CRT-Nodes is a large custom node suite for ComfyUI focused on production workflows: image/video loading and saving, FX and post, FLUX/WAN/LTX sampling, LoRA utilities, audio tools, and graph helpers.

What is in this pack

• Up to 106 total node registrations when optional nodes are available
• Categories covering Load, Save, Text, Conditioning, Sampling, FX, Image, Audio, LoRA, Latent, Video, Flux2, LTX2.3, and utility logic/UI

Installation

ComfyUI Manager

Search for CRT-Nodes and install.

Manual

Clone into your custom nodes folder:

git clone https://github.com/PGCRT/CRT-Nodes.git

Install requirements:

pip install -r requirements.txt

Restart ComfyUI.

Dependencies and optional features

Base requirements in requirements.txt:

• opencv-contrib-python
• scipy
• ultralytics
• color-matcher
• spandrel
• pedalboard
• wordcloud
• librosa
• imageio-ffmpeg

Optional/conditional nodes:

• Audio Transcript (CRT) depends on whisper, torchaudio, and MelBand runtime sources from custom_nodes/ComfyUI-MelBandRoFormer/model/*.py.
• Tiny FLUX.2 VAE nodes depend on diffusers and FLUX.2 Tiny VAE weights in models/vae_approx/FLUX.2-Tiny-AutoEncoder/.
• Magic LoRA Loader (CRT) and Magic Save Merged LoRA (CRT) are conditionally registered if their import succeeds.
• Save Image Base64 (CRT) is conditionally registered if its import succeeds.
• LTX 2.3 AutoDownload uses built-in HTTP download utilities and adds API routes for model status/download.

If optional imports fail, CRT-Nodes keeps loading and skips only affected nodes. The full catalog below lists every node that can be registered, with conditional nodes marked explicitly.

Verified node catalog

Below is the full catalog grouped by each node CATEGORY.

CRT/Load (11)

• Audio Loader Crawl (CRT)
• Image Loader Crawl (CRT)
• Image Loader Crawl Batch (CRT)
• Load Image Base64 (CRT)
• Load Image Resize (CRT)
• Load Last Image (CRT)
• Load Last Latent (CRT)
• Load Last Video (CRT)
• Text Loader Crawl (CRT)
• Text Loader Crawl Batch (CRT)
• Video Loader Crawl (CRT)

CRT/Save (6)

• Save Audio With Path (CRT)
• Save Image Base64 (CRT) (conditional)
• Save Image With Path (CRT)
• Save Latent With Path (CRT)
• Save Text With Path (CRT)
• Save Video With Path (CRT)

CRT/Text (9)

• Add Settings and Prompt (CRT)
• Advanced String Replace (CRT)
• AutopromptProcessor (CRT)
• Remove Lines (CRT)
• Remove Trailing Comma (CRT)
• String Batcher (CRT)
• String Line Counter (CRT)
• String Splitter (CRT)
• Text Box line spot (CRT)

CRT/Conditioning (5)

• CLIP Text Encode FLUX Merged (CRT)
• Dynamic Prompt Scheduler (CRT)
• File Batch Prompt Scheduler (CRT)
• Smart ControlNet Apply (CRT)
• Smart Style Model Apply DUAL (CRT)

CRT/Utils/Logic & Values (8)

• Boolean Transform (CRT)
• Mask Empty Float (CRT)
• Mask Pass or Placeholder (CRT)
• Resolution (CRT)
• Resolution By Side (CRT)
• Sampler & Scheduler Crawler (CRT)
• Sampler & Scheduler Selector (CRT)
• Video Duration Calculator (CRT)

CRT/Utils/UI (4)

• Fancy Note (CRT)
• Fancy Timer Node
• K
• T

CRT/Logic (3)

• Any Trigger (CRT)
• Boolean Invert (CRT)
• Strength to Steps (CRT)

CRT/Audio (7)

• Audio Frame Adjuster (CRT)
• Audio Transcript (CRT) (conditional)
• Frame Count (Audio or Manual) (CRT)
• Mono to Stereo Converter (CRT)
• Parametric EQ (CRT)
• Preview Audio (CRT)
• Tube Compressor (CRT)

CRT/FX (12)

• Advanced Bloom FX (CRT)
• Arcane Bloom FX (CRT)
• Clarity FX (CRT)
• Color Isolation FX (CRT)
• Colourfulness FX (CRT)
• Contour FX (CRT)
• Film Grain FX (CRT)
• Lens Distort FX (CRT)
• Lens FX (CRT)
• Post-Process Suite (CRT)
• Smart DeNoise FX (CRT)
• Technicolor 2 FX (CRT)

CRT/Image (12)

• Batch Brightness Curve (U-Shape) (CRT)
• Chroma Key Overlay (CRT)
• Depth Anything Tensorrt Format (CRT)
• Image Dimensions From Megapixels (CRT)
• Image Dimensions From MP alt (CRT)
• Image Scale Range From MP (CRT)
• Image Tile Checker (CRT)
• Percentage Crop Calculator (CRT)
• Quantize and Crop Image (CRT)
• Smart Preprocessor (CRT)
• SolidColor
• Upscale using model adv (CRT)

CRT/Sampling (10)

• Flux1 Cnet Sampler with Injection (CRT)
• Flux1 Cnet Ultralytics Multi (CRT)
• Image Upscale Sampler (CRT)
• KSampler Batch (CRT)
• KSampler Batch Advanced (CRT)
• Latent Noise Injection Sampler (CRT)
• SEGS Enhancer Multi (CRT)
• Ultralytics Enhancer (CRT)
• WAN 2.2 Batch Sampler (CRT)
• WAN 2.2 LoRA Compare Sampler (CRT)

CRT/LoRA (3)

• Flux LoRA Blocks Patcher (CRT)
• Magic LoRA Loader (CRT) (conditional)
• Magic Save Merged LoRA (CRT) (conditional)

CRT/Latent (3)

• Enable Latent (CRT)
• Reference Latent Batch (CRT)
• Scale Latent To Megapixels (CRT)

CRT/Video (2)

• Get First & Last Frame (CRT)
• Seamless Loop Blender (CRT)

CRT/Mask (1)

• Mask Censor (CRT)

CRT/Flux2 (4)

• Flux2Klein Seamless Tile (CRT)
• Tiny FLUX.2 VAE Loader (CRT) (conditional)
• Tiny FLUX.2 VAE Encode (CRT) (conditional)
• Tiny FLUX.2 VAE Decode (CRT) (conditional)

CRT/LTX2.3 (4)

• LTX 2.3 AutoDownload (CRT) (conditional)
• LTX 2.3 Unified Sampler (CRT)
• LTX 2.3 US Config (CRT)
• LTX 2.3 US Models Pipe (CRT)

image (1)

• Save JPEG Websocket (CRT)

WanVideo/Loaders (1)

• Wan Video Multi-LoRA Select (CRT)

• Repository: https://github.com/PGCRT/CRT-Nodes

• Comfy Registry package name: crt-nodes

• https://discord.gg/MqQeQvYcPA