What does the strength number do?

Strength scales how strongly a LoRA's learned style or subject is applied. Around 0.6–0.9 is typical; 1.0 is full strength. Going much above 1.0 often overpowers the base model and degrades coherence.

Can I stack several LoRAs at once?

Yes, but their strengths add up. Two style LoRAs at 1.0 each tend to clash. Keep the combined weight moderate — for example two LoRAs at 0.6–0.7 each — and adjust from there.

Where do the LoRA names come from?

Use the LoRA's file name without the extension, exactly as it appears in your models/Lora folder. The name in the tag must match the file, or the SD UI will ignore it.

Is anything sent to a server?

No. The mixer only formats text in your browser. Nothing you enter is uploaded, stored or logged, and no model is loaded here.

LoRA Style Mixer — Gera Tools

Stable Diffusion LoRA style mixer

LoRAs let you bolt a style, character or concept onto a base Stable Diffusion model — but stacking several means juggling strengths and <lora:...> tags by hand. This mixer lets you add multiple LoRAs with strength sliders, watch the total stacked weight, and copy correctly formatted tags ready to paste.

How LoRA syntax works

In AUTOMATIC1111, Forge and ComfyUI you activate a LoRA by adding a tag to your prompt:

<lora:filename:strength>

filename is the LoRA file in your models/Lora folder (no extension) and strength scales how hard it is applied — 1.0 is full, 0.7 is a common restrained default. Multiple LoRAs simply sit side by side:

a knight in armor <lora:epic_style:0.7> <lora:detail_boost:0.4>

Their effects add up, so two strong LoRAs can overpower the base model and each other. The mixer sums your strengths and flags when the stack gets heavy so you can dial it back before generating.

Tips for mixing LoRAs

Start low. Set each LoRA to 0.6–0.8 and raise only the one that needs more presence.
Watch the total. A combined weight above ~1.5 across style LoRAs usually muddies results.
Match the base model. An SD 1.5 LoRA will not work on an SDXL checkpoint — keep the families consistent.
Use trigger words. Many LoRAs need their trigger word in the text prompt as well as the tag; check the LoRA’s model card.