CORS Header Generator
Generate Cross-Origin Resource Sharing headers
Presets:
Origin Settings
Use * for any origin, or specify exact domains (one per line for multiple)
Cannot be used with * origin
Allowed Methods
Allowed Headers
Comma-separated list of allowed request headers
Exposed Headers
Headers that can be accessed by JavaScript (optional)
Preflight Cache
How long browsers can cache preflight response (86400 = 24 hours)
Generated Output
What is CORS Header Generator?
CORS Header Generator is a free online tool that creates cors header with customizable options. Whether you're a developer, designer, or professional, this tool helps you generate cors header quickly and efficiently right in your browser. No installation, no signup, and no data leaves your device.
How to Use This Tool
- Step 1: Enter or paste your input in the provided field
- Step 2: Configure any options or settings as needed
- Step 3: View the result instantly (or click the action button)
- Step 4: Copy the result using the copy button
Common Use Cases
- Using cors header generator for web development
- CORS Header Generator for everyday tasks
- Quick cors header generator operations
- Professional cors header generator needs
- Learning and testing cors header generator
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