insta-EXFI

EXIF Metadata Editor - Workflow-based web application for editing image metadata (date, location, device information)

Features

• Edit EXIF metadata (date/time, GPS coordinates, device make/model/software)
• ComfyUI-style workflow interface with draggable nodes
• Support for JPEG and PNG images (PNG auto-converted to JPEG)
• Batch processing with "Apply to all" option
• Device templates for quick metadata filling
• Image preview and metadata preview nodes
• Zoom functionality (mouse wheel)
• Node position persistence (localStorage)

Installation

npm install

Usage

Start the Server

Windows:

start.bat

Linux/Mac:

npm start

The server will start on http://localhost:3000 and automatically open your browser.

Stop the Server

Windows:

stop-server.bat

Or press Ctrl+C in the server console

How It Works

1. Load Image Node: Upload JPEG/PNG images via drag & drop or file selection
2. Metadata Synthesis Node: Edit metadata fields (datetime, GPS coordinates, device info, orientation)
3. Preview Nodes: View image preview and current metadata
4. Process EXIF Node: Apply metadata changes to selected or all images
5. Output: Processed images are saved to exif_comp/ folder in the project root

File Storage

• Uploaded files: Stored in uploads/ folder (temporary, auto-cleaned after 1 hour)
• Processed files: Saved to exif_comp/ folder in project root
• Processed images are always saved as JPEG format (.jpg)
• If a file with the same name exists, a counter is added (e.g., image_1.jpg)

Workflow Features

• Drag nodes: Click and drag node headers to reposition
• Zoom: Use mouse wheel to zoom in/out (zoom level saved in localStorage)
• Node connections: Visual connections between nodes show data flow
• Device templates: Quick selection of common devices (iPhone, Samsung, etc.)

Supported Metadata Fields

• datetime - Date and time of capture
• latitude / longitude - GPS coordinates
• make - Device manufacturer (e.g., "Apple")
• model - Device model (e.g., "iPhone 17 Pro")
• software - Software version (e.g., "iOS 26.2")
• orientation - Image orientation (1-8)

Technologies

• Node.js + Express
• piexifjs (EXIF manipulation)
• sharp (PNG to JPEG conversion)
• Multer (file uploads)
• Vanilla JavaScript (frontend)

License

MIT