Encoder / Decoder

Securely encode and decode text using Base64, URL, and HTML formats effectively. Essential tool for web developers and security professionals.

Zero-knowledge processing - Safe for sensitive data

Best for: Debugging API auth headers, cleaning URLs for social sharing, and sanitizing HTML snippets.

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1Supported Formats

  • Base64: For data transmission and storage
  • URL Encoding: Safe web transmission
  • HTML Entities: Special character encoding

Features

  • Multiple encoding formats
  • Bidirectional encoding/decoding
  • Fast and secure processing
  • Client-side only - no server data
  • Developer-friendly interface

Use Cases

API development and testing
Web security and penetration testing
Data transmission encoding
URL parameter encoding
HTML content sanitization
Debugging encoded strings

Frequently Asked Questions

Is my data secure?

Yes, all encoding and decoding happens entirely in your browser. No data is sent to any server, ensuring complete privacy and security.

What is Base64 encoding used for?

Base64 is commonly used for encoding binary data in text format, such as embedding images in HTML/CSS, encoding email attachments, and storing data in JSON.

When should I use URL encoding?

URL encoding is essential when passing special characters in URLs or query parameters to ensure they are properly transmitted and interpreted by web servers.