URL Encoder Decoder Online

About URL Encoder & Decoder

This free online URL encoder and decoder tool helps you encode and decode URLs with various options for different use cases. All processing happens in your browser for maximum privacy and security.

Features

• Standard URL Encoding: Encode URLs using encodeURI() for basic URL encoding
• Component Encoding: Use encodeURIComponent() for encoding URL parameters and query strings
• Custom Options: Control space encoding and special character handling
• Bidirectional Processing: Easily switch between encoding and decoding modes
• File Support: Upload text files and download results
• Smart Decoding: Automatically tries alternative decoding methods if one fails
• Copy & Download: Copy results to clipboard or download as text files
• Privacy First: All processing happens locally in your browser

URL Encoding Types

• Standard Encoding (encodeURI): Encodes special characters but preserves URL structure characters like :, /, ?, #
• Component Encoding (encodeURIComponent): Encodes all special characters including URL structure characters - ideal for query parameters

Common Use Cases

• Query Parameters: Encode values to be used in URL query strings
• API Requests: Prepare URLs for HTTP requests with special characters
• Form Data: Encode form data for URL submission
• Web Development: Handle URLs with spaces and special characters
• Data Processing: Clean and prepare URLs for databases or APIs
• Link Sharing: Ensure URLs work correctly when shared across platforms

When to Use Each Method

• Use Standard Encoding when: Encoding complete URLs while preserving structure
• Use Component Encoding when: Encoding individual URL components like query parameter values
• Encode Spaces: Convert spaces to %20 for URL compatibility
• Special Characters Only: Only encode problematic characters while preserving others