ComfyUI LoRA Tag Hash Metadata

ComfyUI custom node that converts <lora:name:weight> text into Name:HASH:Weight metadata strings for downstream nodes such as Civitai-aware metadata savers.

Created with comfyui-custom-node-template

Primary use case:

• feed loaded_loras from LoRA Manager into LoRA Tags To Hash Metadata
• connect additional_hashes into Image Saver Metadata.additional_hashes
• preserve LoRA hash metadata so downstream nodes can resolve Civitai model info

The node is generic on purpose. Any node that outputs <lora:name:weight> text can feed it, and any downstream node that expects Name:HASH:Weight strings can consume the result.

Install

ComfyUI Manager

1. Open Manager in ComfyUI
2. Click Install Custom Nodes
3. Search for LoRA Tag Hash Metadata or comfyui-lora-tag-hash-metadata
4. Click Install
5. Restart ComfyUI if Manager prompts you to do so

If you use the ComfyUI CLI instead of the Manager UI:

comfy node install comfyui-lora-tag-hash-metadata

Node

• Node id: LoraTagsToHashMetadata
• Display name: LoRA Tags To Hash Metadata
• Category: utils/metadata

Inputs:

• loaded_loras: multiline string containing one or more <lora:name:weight> tags

Outputs:

• additional_hashes: comma-separated Name:HASH:Weight string
• resolved_loras: comma-separated list of successfully resolved LoRA names
• missing_loras: comma-separated list of unresolved or incompatible names

Behavior:

• supports <lora:name> and defaults weight to 1.0
• resolves path-qualified names before basename fallback
• treats dotted version suffixes such as my_lora_v0.23 as part of the LoRA name unless a known model extension is present
• computes SHA256 locally and emits the first 10 uppercase hex characters
• deduplicates repeated tags with last occurrence winning
• reports comma-bearing names in missing_loras instead of silently dropping them

Local Development

1. Clone/symlink this folder into ComfyUI's custom_nodes/ directory
2. Run pnpm install
3. Run pnpm dev to watch for changes and rebuild dist/

Python Test Workflow

Use uv for Python-side tooling:

uv sync
uv run pytest

pnpm install    # Install dependencies
pnpm dev        # Watch mode - rebuilds dist/ on change
pnpm build      # Build for production
pnpm test       # Run tests

Note: Reload ComfyUI frontend (browser refresh) for JS changes. Restart ComfyUI server for Python changes.

LoRA Tag Hash Metadata

Typical wiring:

Lora Loader (LoraManager).loaded_loras
  -> LoRA Tags To Hash Metadata.loaded_loras
  -> Image Saver Metadata.additional_hashes

You can also feed any other text source that emits the same tag syntax.

Publishing to ComfyUI Registry

1. Ensure all fields in pyproject.toml are correct
2. Add REGISTRY_ACCESS_TOKEN secret to your repo (from ComfyUI registry)
3. Go to Actions → "Publish to Comfy registry" → Run workflow
4. Select version bump type (patch/minor/major)

License

MIT