Compare and combine multiple prompts
The base prompt starts enabled while additional prompts start disabled. Turn on only the chips you want from the additions to bring favorite elements together without losing your starting point.
Stable Diffusion Prompt Editor
Compare and combine multiple prompts, then fine-tune tokens, weights, and LoRA tags visually.
Prompt inputs
Load a sample
Token pool
Output preview
About this tool
A browser-only editor for safely comparing, combining, and fine-tuning long Stable Diffusion prompts copied from elsewhere while checking their syntax.
Adjust weights and LoRA visually
The editor reads round brackets, square brackets, and explicit weights, then lets you adjust each token with a slider. LoRA tags expose their names and weights separately.
Safe local processing
Prompt parsing, syntax checks, and output reconstruction run entirely inside your browser. Nothing you enter is sent to an external server.
## What is the SD Prompt Editor (Stable Diffusion Prompt Editing)? Why is it Important for Image Generation?
In AI image generation, including Stable Diffusion and SDXL, the content of prompts and negative prompts directly dictates the quality of the generated images. However, through trial and error, prompts can grow to hundreds or even thousands of characters. Missing commas, duplicates, messy spaces, and disorganized tag orders are common pain points for AI creators. Trying to organize these inside the small input fields of WebUI or ComfyUI makes it hard to see what tags are present and can lead to new errors during edits. The SD Prompt Editor solves this inefficiency as a dedicated tool for visually organizing and building prompts before generation.
⚡ What You Can Do with Web Dev Toolkit's SD Prompt Editor
Automatic Comma-Separated Tag Recognition & Management
Simply paste your long prompt string to automatically split it into individual comma-separated tags. You can see at a glance what tags are included and easily toggle them ON/OFF with a single click to add or remove them.
Prevent Syntax Errors with Weight Tuning
Emphasis syntax like (tag:1.1) or ((tag)) is prone to typing errors when entering parentheses and values manually. The SD Prompt Editor simplifies Stable Diffusion weight adjustments with a simple slider, converting it automatically into the correct parenthesis syntax.
Integrated Positive, Negative, & Trigger Word Management
View and edit positive and negative prompts on a single screen. It also functions as a trigger word insertion tool, treating LoRA trigger words like any other tag. This makes it ideal for prompt management in AI art workflows, such as comparing multiple prompts to extract and merge the best parts. Final tweaks can also be made by directly editing the output preview.
🔒 Advantages of Using Our SD Prompt Editor (Privacy & Speed)
100% Client-Side Processing for Maximum Privacy
The highly effective prompts and custom trigger setups you spend time refining are valuable intellectual property. All prompt data and keywords entered are processed entirely within your browser and are never sent to or stored on external servers.
No Registration & Free to Use Immediately
With no account setup or annoying ad interruptions, you can open this tool in another tab and launch it in a second while keeping your Stable Diffusion WebUI, ComfyUI, or Forge open. Your refined prompt can be copied with a single click, integrating seamlessly into your daily workflow.
❓ Frequently Asked Questions (FAQ)
What is the SD Prompt Editor?
It is a free browser-based tool to organize and edit prompts for Stable Diffusion and SDXL at the tag level. It serves as both a prompt builder and a negative prompt organizer, letting you clean up long prompts and adjust weights in one place.
Are entered prompts or trigger words sent to or saved on external servers?
No, they are not. All prompts are processed locally within your browser and are never transmitted to or stored on external servers.
How do I manage prompt emphasis (weights) and negative prompts?
Simply drag the slider on each tag, and it will automatically reflect in the parenthesis format, such as (tag:1.2). Positive and negative prompts are displayed simultaneously, allowing you to manage them together without switching screens.
Can the prompts generated here be pasted directly into Stable Diffusion WebUI, ComfyUI, or Forge?
Yes. The SD Prompt Editor outputs in standard parenthesis notation and comma-separated format, acting as a prompt helper for Stable Diffusion WebUI. You can copy the generated prompt and paste it directly into the input fields of WebUI, ComfyUI, or Forge.