HEISS UI

An image-first, free & open-source front end for ComfyUI, with zero setup. 28 built-in image and video model families, LoRA stacks, upscale, reference images, and an actually good phone mode all work out of the box. Import your own workflows, reach it from other devices over LAN, and keep private images in a locked "Hidden" section.

List of features:

• Visual first-generation overlay
• Built in model support for 26 families (Image & Video)
• Custom workflows
• Missing files & nodes download themself
• Live render preview & intelligent render time tracking
• Built in upscale
• Custom phone mode (generate from your couch)
• Connect from any device over LAN
• Prompt history, favorite images, image search by model or prompt
• "Hidden" section for storing encrypted private images that don't show in your file browser

Supports:

• Lora's (with the "Lora Stack" save feature)
• Reference Image
• Image to Image
• Inpainting
• Video start frame
• Custom seed
• Advanced generation settings (CFG, Scheduler, Sampler, etc.)

Licensed: MIT License

Copyright (c) 2026 Leander de Buhr (HEISS UI)