URL Encoder/Decoder

Encode and decode URLs, text, and various encoding formats with advanced features

Encoder
Decoder
Quick Examples
Supported Encoding Types
URL Encoding
  • URL Encoding: Standard URL encoding (RFC 1738)
  • URL Component (RFC 3986): RFC 3986 compliant encoding
  • Base64: Binary to text encoding
  • HTML Entities: HTML character encoding
  • Unicode Escape: Unicode escape sequences
Special Encodings
  • Punycode: Internationalized domain names
  • ROT13: Simple letter substitution cipher
  • Hexadecimal: Binary to hex conversion
  • Base32: 32-character encoding
  • Base58: Bitcoin-style encoding

Online URL Encoder

Our comprehensive URL encoder tool provides professional-grade encoding capabilities for web developers, SEO specialists, and system administrators. This advanced tool supports multiple encoding standards including RFC 3986 URI encoding, Base64 binary-to-text conversion, HTML entity encoding for XSS protection, Unicode escape sequences for international character support, and specialized formats like Punycode for internationalized domain names and Base58 for cryptocurrency applications.

URL encoding is essential for secure data transmission across the internet, ensuring special characters and binary data are properly encoded for safe transmission through various protocols and systems. Our tool handles complex encoding scenarios including query parameter encoding, form data processing, API request formatting, and file upload handling with real-time validation and detailed encoding statistics.

Online URL Decoder

The URL decoder tool instantly converts encoded URLs, text, and binary data back to their original readable format. Perfect for developers debugging API responses, webmasters analyzing encoded URLs, and anyone working with encoded data from web scraping, email links, or system logs. Our decoder supports automatic format detection and provides detailed validation to ensure accurate decoding results.

Advanced features include automatic encoding type detection, comprehensive error handling, detailed character analysis, and support for multiple encoding standards. The tool validates decoded output and provides statistics including original vs decoded length comparisons, compression ratios, and format compliance checks to ensure data integrity and proper decoding.

Common Use Cases and Examples

Common applications include web form data encoding, API parameter processing, email link generation, file upload handling, international character support, security implementations, data serialization, and cross-platform compatibility. The tool provides real-time encoding/decoding with detailed statistics including length comparisons, compression ratios, and validation checks to ensure data integrity and proper format compliance.

Technical Standards and Best Practices

Our tool implements industry-standard encoding protocols including RFC 3986 for URI encoding, RFC 4648 for Base64 encoding, RFC 3492 for Punycode internationalized domain names, and various HTML entity encoding standards. For comprehensive information about encoding standards and best practices, visit the official specifications and documentation.

Useful Resources: RFC 3986 URI specification, RFC 4648 Base64 specification, RFC 3492 Punycode specification, and Wikipedia URL encoding article.

Frequently Asked Questions

URL encoding (percent-encoding) is a method to encode special characters in URLs so they can be safely transmitted over the internet. It replaces unsafe characters with a percent sign followed by two hexadecimal digits.

Use URL encoding when sending data in URLs, form submissions, API requests, or any situation where special characters might interfere with data transmission or interpretation.

Standard URL encoding follows RFC 1738 and encodes more characters, while RFC 3986 encoding is more restrictive and only encodes characters that are not allowed in URIs.

URL encoding is designed for URLs and encodes specific characters, while Base64 is a binary-to-text encoding that can represent any binary data as ASCII characters.

URL encoding itself is not a security measure. For sensitive data, consider additional encryption or use HTTPS for transmission. URL encoding only ensures proper data transmission.

The tool supports Unicode characters through UTF-8 encoding and provides Unicode escape sequences for characters that need to be represented as escape codes.

How to Use the URL Encoder/Decoder

Encoding Text or URLs

  1. Enter the text or URL you want to encode in the "Text to Encode" field
  2. Select the appropriate encoding type from the dropdown menu
  3. Click the "Encode" button to process your input
  4. Copy the encoded result from the output field

Decoding Encoded Content

  1. Paste the encoded text or URL in the "Text to Decode" field
  2. Choose the correct decoding type or let the tool auto-detect it
  3. Click the "Decode" button to convert back to original format
  4. Review the decoded result and validation status