HTML Entity Encoder / Decoder
Convert characters to named (©), decimal (©), or hexadecimal (©) HTML entities, decode entity strings back into plain text, and browse an interactive entity cheat sheet.
The HTML Entity Encoder / Decoder is a fast, accurate Developer utility designed to convert characters to named (©), decimal (©), or hexadecimal (©) html entities, decode entity strings back into plain text, and browse an interactive entity cheat sheet. entirely in your browser with zero server data storage.
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Systems & Security Engineers • Applied Cryptography & High-Performance Web Tools
How to Use HTML Entity Encoder / Decoder
Choose Encode or Decode mode
Select whether you want to escape special characters for HTML markup or decode encoded entities back to plain readable text.
Choose format & options
Pick between named entities, decimal, or hex codes, and specify whether to encode only special symbols or all non-ASCII characters.
Copy the result
Instantly copy the safe encoded HTML strings into your web project or templates.
Frequently Asked Questions (PAA)
Related Tools & Converters
Authoritative Standards & Citations
Calculations and algorithms on this page are implemented and verified in strict accordance with the following official technical specifications:
RFC 7519: JSON Web Token (JWT)
Standardized compact, URL-safe means of representing claims to be transferred between two parties.
Web Cryptography API Specification
Standard JavaScript API for performing basic cryptographic operations in web applications.
RFC 4122: A Universally Unique IDentifier (UUID) URN Namespace
Definition of uniform format and generation algorithms for UUIDs.