Comfyui-GeminiWeb

Custom ComfyUI nodes for Google Gemini image generation and editing using the Gemini web interface.

Security Warning

This node accesses your browser cookies for authentication. Please be aware:

• Local use only - Do not run on shared computers or public networks
• Cookie extraction - The app scans your browser for Google session cookies
• Plain text storage - Cookies may be stored in memory during session
• No SSL verification - Requests may not verify SSL certificates

Use at your own risk. Only run this on your personal, private machine.

Note: This is released as-is with no active maintenance planned. Pull Requests are welcome if you'd like to fix issues or improve the project!

Features

• Text-to-Image - Generate images from text using Gemini's native image model
• Image-to-Image - Edit/transform images with natural language
• Vision Chat - Chat with Gemini about images
• Multi-Image Input - Support for up to 5 reference images
• Watermark Filter - Choose between watermarked, non-watermarked, or all images
• Auto Authentication - Supports browser cookie auto-detection
• Self-Contained - All dependencies bundled, no external API package needed

Installation

1. Clone or Download

cd ComfyUI/custom_nodes
git clone https://github.com/Koko-boya/Comfyui-GeminiWeb.git

Or download and extract to ComfyUI/custom_nodes/Comfyui-GeminiWeb

2. Install Dependencies

cd Comfyui-GeminiWeb
pip install -r requirements.txt

3. Restart ComfyUI

Authentication Setup

Modern Chrome/Edge (v127+) uses App-Bound Encryption (v20) which requires special handling.

Option 1: Manual (Recommended)

The simplest and most reliable method:

1. Login to gemini.google.com
2. Press F12 → Application → Cookies → gemini.google.com
3. Copy __Secure-1PSID and __Secure-1PSIDTS values
4. Paste directly into the node's cookie inputs

Option 2: Cookie File

Store cookies in a file for reuse:

1. Edit gemini_cookies.txt in the node folder:

   __Secure-1PSID=your_value_here
   __Secure-1PSIDTS=your_value_here
   

2. Use "cookie_file" in the node

Option 3: Auto Cookies (Run as Administrator)

For automatic v20 cookie decryption (Edge only tested):

1. Run ComfyUI as Administrator
2. Login to gemini.google.com in Edge
3. Close the browser completely (important!)
   • Make sure the browser is not running in the background
   • Check Task Manager and end any Edge/Chrome processes
4. Use "auto_cookies" in the node

Why Admin? Chrome/Edge 127+ use App-Bound Encryption (v20) which requires SYSTEM-level access to decrypt. Currently only Edge is tested.

Node: GeminiWeb

Unified node for all Gemini operations.

Inputs

Input	Type	Description
mode	ENUM	text_to_image, image_to_image, or chat
prompt	STRING	Text prompt
auth_method	ENUM	auto_cookies, cookie_file, or manual
image_1	IMAGE	Primary input image
image_2	IMAGE	Optional reference image
image_3	IMAGE	Optional reference image
image_4	IMAGE	Optional reference image
image_5	IMAGE	Optional reference image
model	ENUM	Gemini model to use
timeout	INT	API timeout (30-600 seconds)
image_filter	ENUM	all, no_watermark, or watermarked
cookie_1PSID	STRING	Cookie (manual mode)
cookie_1PSIDTS	STRING	Cookie (optional)

Outputs

Output	Type	Description
image	IMAGE	Generated/edited image(s)
response_text	STRING	Text response from Gemini
thinking	STRING	Model thinking/reasoning

Modes

• text_to_image: Generate images from text prompts
• image_to_image: Edit/transform input images using text instructions
• chat: Chat with Gemini (text response, optional image input for vision)

Image Filter

Filter	Description
all	Return all generated images
no_watermark	Return only non-watermarked images (JPEG)
watermarked	Return only watermarked images (PNG)

Example Workflows

Text-to-Image Generation

[GeminiWeb (text_to_image)] → [Preview Image]

Image Editing with References

[Load Image 1] → image_1 ─┐
[Load Image 2] → image_2 ─┼→ [GeminiWeb (image_to_image)] → [Save Image]
[Load Image 3] → image_3 ─┘

Vision Chat

[Load Image] → image_1 → [GeminiWeb (chat)] → [Text Output]

Available Models

Model	Description
unspecified	Default model (uses Gemini's default)
gemini-3-pro	Pro model
gemini-3-thinking	Thinking model
gemini-3-flash	Fast model (default)

Troubleshooting

Issue	Solution
"Cookie expired"	Re-login to gemini.google.com and update cookies
"v20 App-Bound Encryption"	Use manual method (recommended) or run as Admin with Edge
"No browser cookies found"	Use manual or cookie_file method (recommended)
"Cookie file not found"	Create gemini_cookies.txt with your cookies
"No images generated"	Try adding "generate" to your prompt
Import errors	Run pip install -r requirements.txt
Region restrictions	Image generation may not be available in all regions
v20 not decrypting	Run as Admin + close Edge + PythonForWindows installed

Reporting Issues

If you encounter problems, please open an issue with the prompt you used, or enable debug_mode in the node and attach the debug_request.txt file (found in the node's directory under custom_nodes/Comfyui-GeminiWeb/).

⚠️ Do NOT share debug_response.txt — it may contain your location and other personal details from Google.

Credits

• Based on Gemini-API by HanaokaYuzu (vendored)
• v20 Cookie Decryption based on chrome_v20_decryption by runassu
• ComfyUI Community

License

This project is licensed under AGPL-3.0 (same as the vendored Gemini-API library).

See LICENSE for details.

Third-Party Code

The gemini_webapi/ directory contains code from Gemini-API by HanaokaYuzu, licensed under AGPL-3.0.