Encoding Tools

Encode and decode data in various formats including Base64, URL encoding, HTML entities, and number systems.

Base64 Encoder/Decoder

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URL Encoder/Decoder

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HTML Encoder/Decoder

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Hex ↔ String Converter

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Binary ↔ Decimal Converter

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Image to Base64

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Encoding Tools for Base64, URL, and Number System Conversions

Encoding tools translate data between formats needed by browsers, APIs, and storage systems: Base64 for embedding binary data as text, URL encoding for safely passing values in a query string, HTML entities for displaying reserved characters, and hex or binary conversions for low-level data work.

Recommended Workflows

API Debugging Workflow

  1. Decode a Base64 authorization header
  2. Decode a URL-encoded query parameter
  3. Convert a hex value to readable text

Web Publishing Workflow

  1. Encode an image as Base64 for embedding
  2. Escape HTML entities in a code snippet
  3. Encode special characters in a URL