You know what you want to see. Just say it. Type plain English, get Stable Diffusion prompts that actually work. You don't need to memorize tags or read tutorials.
Get Sigil - $7.99 One-time purchase, fully offline.Describe what you want to see in plain English. Something like "a knight in silver armor at sunset" and Sigil turns it into the tags SD needs. Custom model trained on 300K+ tag translations with SFW/NSFW toggle.
Every tag is checked against 234,000+ known Danbooru and e621 tags. Valid tags show up green, unknown ones show red, so you can tell what works before you generate.
Type a character name and Sigil finds them. 265+ characters with alias support and variant picker. One click injects the right appearance tags.
Search tags right from the input field. Find tags you didn't know existed, see popularity counts, add them to your prompt.
Every translation is auto-saved. Pin favorites, rename entries, reuse prompts, and edit tags. Your work is never lost.
One-click quality tags for Pony, Illustrious, or generic models. Each model type has its own "magic words" and Sigil helps you pick the right ones.
Low VRAM mode automatically loads and unloads the AI model around each translation, so Sigil and SD can share the same GPU.
One-time model download, then everything runs on your machine. No internet needed, no cloud, no API keys.
Sigil works best with booru-trained models like Pony, Illustrious, and NoobAI. These models were trained on tagged image data, so they respond well to the tags Sigil generates.
For realistic or SDXL-based models, plain English descriptions often work just as well on their own. Sigil can still help, but those models don't rely on booru tags the same way.
Sigil v1.2 includes an experimental custom-trained model (300K+ examples) with SFW/NSFW toggle for better tag accuracy.
No experience needed. 15 minutes, start to finish.
Sigil includes short explanations of SD concepts built right in. Not full tutorials, just enough to know what something does and whether you need it.
Extra training that teaches SD specific things. Like mods for a game. Optional.
How closely SD follows your prompt. Higher = more literal. 7 is a safe default.
Different ways SD builds the image. Some faster, some prettier. Euler works fine.
Pony models need Pony LoRAs. SDXL needs SDXL LoRAs. Not everything mixes.
(tag:1.2) means "more of this." Default is 1.0. Don't go crazy.
Tags for things you DON'T want. Bad hands, extra fingers. Common ones are built in.
Sigil includes a Low VRAM mode for GPUs under 14GB that automatically manages model loading so Sigil and SD can share the GPU.
Character detection, prompt history, dual tag database (v1.1), and custom-trained model with SFW/NSFW toggle (v1.2) are live. Here's what's coming:
Direct ComfyUI prompt sending. Favorites and quick-access prompts. Improved model accuracy with more training data.
Community ecosystem packs: curated model + VAE + LoRA combos that just work together. One-click setup for beginners.
Skip the tutorials. Just say what you want to see.
Get Sigil - $7.99 One-time purchase, fully offline, no subscriptions.