HTML Encode/Decode
Upload files for HTML encoding or decoding operations, with support for downloading processed files
File Processing
Drag and drop files here, or
Processing Result
Please upload and process a file to view results
Instructions
Select Operation Type
Choose whether to perform HTML encoding or decoding.
Select Character Set
Select the character encoding of the file, default is UTF-8.
Upload File
Drag and drop files into the upload area or click the browse button to select files.
Process File
Click the "Process File" button, and the system will perform HTML encoding or decoding on the file.
Download Result
After processing is complete, you can view file information and download the processed file.
HTML Encoding and Decoding Basics
What is HTML Encoding
HTML encoding is the process of converting special characters into HTML entities, which start with & and end with a semicolon (;). HTML entities are used to display special characters in web pages that might otherwise be interpreted as HTML code by browsers.
For example, the character "<" is encoded as <, and the character "&" is encoded as &.
The Role of HTML Encoding
-
Prevent Code Injection
Avoid user input content being interpreted as HTML code by browsers
-
Display Special Characters
Correctly display characters with special meaning in HTML
-
Cross-platform Compatibility
Ensure consistent display across different platforms and browsers
-
Protect Data Security
Prevent XSS (Cross-Site Scripting) attacks in web applications
Types of HTML Entities
Named Entities
Entities represented by names, such as < for "<", and > for ">"
Numeric Entities
Entities represented by numbers, such as < for "<", and > for ">"
Numeric entities are further divided into decimal entities (such as <) and hexadecimal entities (such as <).
Common HTML Entity Examples
| Display Result | Description | Named Entity | Numeric Entity |
|---|---|---|---|
| & | Ampersand | & |
& |
| < | Less Than | < |
< |
| > | Greater Than | > |
> |
| " | Double Quote | " |
" |
| ' | Single Quote | ' |
' |
| © | Copyright Symbol | © |
© |
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