100% local and secure
Your data stays on your device and is never sent to our servers.
Turn special characters into HTML entities or restore them to readable text directly in your browser.
Encode special characters as HTML entities or decode entities back into readable text. This is useful when characters such as &, <, >, or quotation marks need to be represented without being interpreted as HTML markup.
Your data stays on your device and is never sent to our servers.
Generate, convert, or validate technical data with purpose-built controls.
Technical formats and syntaxes suited to each generator, converter, or validator.
Get a clean, ready-to-use result in seconds without installing software or configuring a complex workflow.
Guide
Enter the content to encode, or a string containing HTML entities that you want to decode.
Encode relevant characters as HTML entities or decode entities back into characters.
Review the output and copy it into your HTML, content, or code.
An HTML entity is a textual representation of a character, such as & for an ampersand. It is commonly used for reserved characters or characters that are inconvenient to enter directly.
HTML entities are used in HTML content, while URL encoding transforms certain characters so they can be represented correctly in a URL or its parameters.
No. Encoding and decoding run locally in your browser.
Understand ISO 8601 week numbers, Unix timestamps in seconds or milliseconds, and the difference between human-readable dates and technical time values.
Distinguish hashing from encryption and encoding, understand SHA-256 and SHA-3, collisions and the limits of a hash without authentication.
Learn a practical order for removing empty rows, trimming values, standardizing headers, checking identifiers and validating a CSV or Excel dataset.
Recommended workflow
Discover tools that naturally fit before, after, or alongside this one.
Build a standard cron expression, understand it and preview its next execution times.
Encode text as Base64 or decode a Base64 string back to its original content.
Generate one or more random UUID v4 identifiers instantly and copy them when needed.