① The "reserved and special characters only" mode is ideal for common situations where it is only necessary to protect characters that have a direct impact on the HTML structure, keeping the rest of the text readable.

② The "only characters outside the printable ASCII range" mode expands coverage to encode special characters, symbols, and emojis that may not be correctly interpreted in some environments, enhancing compatibility and robustness.

③ The "all characters" mode offers maximum protection and uniformity by encoding every character to ensure interoperability in highly restrictive environments or when it is essential to avoid any ambiguity in encoding.

HEED allows you to encode text into HTML entities numerically —usually in decimal— or by name —and, if there is no named entity, in hexadecimal—, as well as decode them back to text.

This application is designed to optimize the security and readability of your web content.

Developers, web designers, programmers, and content creators will benefit from its features, ease of use, and intuitive interface, ensuring their pages look perfect and function smoothly.