HTML Entities Converter
Encode and decode HTML entities in text instantly.
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What is HTML Entities Converter?
The HTML Entities Converter is an open-source web tool designed to transform text between raw characters and their corresponding HTML entity representations. It addresses the challenge of safely embedding special characters in HTML documents by encoding or decoding them into entity references, preventing unintended markup interpretation. Developers, web content creators, and data processors use this tool to ensure compatibility with HTML standards, particularly when handling user input, legacy systems, or data exchange formats. The tool solves problems like broken HTML rendering caused by unencoded characters such as <, >, &, and " by systematically converting them into standardized entity formats.
How it works
The HTML Entities Converter is a utility that converts text between raw characters and HTML entity references, supporting four modes: Encode Entities, Decode Entities, Encode Tags, and Decode Tags. It ensures special characters are properly represented in HTML contexts. This tool is essential for developers working with HTML, XML, or similar markup languages. It prevents malformed markup by converting characters like <, >, and & into entities such as < or <. The tool handles a broad range of characters, including CJK block characters, for entity encoding/decoding. It uses decimal numeric entities (e.g., <) for entities and converts tag-breaking characters (e.g., &, ') using a mix of named and numeric references. The tag modes specifically target characters that disrupt HTML syntax, leaving other text unchanged.
How to use it
- 1Select the operation type: Choose 'Encode to HTML Entities' or 'Decode HTML Entities'. 2. Paste or upload text/files (supporting.txt,.html,.xml up to 10MB). 3. Configure options like encoding type or custom entities (optional). 4. Process the input to generate the converted output. Practical tips: Use 'Encode Tags' for HTML/JavaScript contexts to escape special characters. For XML/HTML content, 'Decode Entities' reverses decimal entities but leaves hex (e.g., /) and named entities untouched.
What it can do
- html entity encode
Use cases
Assumptions and limitations
Assumptions
- source: https://www.freeformatter.com/html-escape.html
- license: Open source
- privacy: Opens an external demo
Limitations
- Does not support hex entity decoding (e.g., /) or named entities beyond basic ones.
- Limited to handling UTF-16 code units, potentially missing some Unicode characters.
- Does not parse or validate full HTML/HTML5 documents, only raw text.
- Fixed lookup table for tag encoding may not cover all edge cases in complex markup.
- No built-in file-saving functionality; requires manual export of results.
Understanding the result
Encode and decode HTML entities in text instantly.
Tool details
- Clearly flagged when a network request is needed.
- No account, no sign-up, and no tracking of your content.
- Powered by (MIT).
- Built with
- (https://www.freeformatter.com/html-escape.html)
- License
- MIT
- Runs locally
- No — requires a network request
- Verification
- Not yet verified
- Input
- Query
- Output
- Text
Built with https://www.freeformatter.com/html-escape.html. OpenToolVault provides the discovery and browser interface while crediting the original project maintainers.
- Built with
- License
- MIT
Open-source project
OpenToolVault is an independent directory. We are not affiliated with or endorsed by this project.
References
- / — GitHub Repository
Upstream project · GitHub
Frequently asked
How does the HTML Entities Converter handle different entity types?
The tool uses regular expressions to encode/decode entities. For entities, it converts characters to decimal numeric entities (e.g., <) but leaves hex (e.g., /) and named entities (e.g., &) unchanged. Tag modes use a fixed lookup table to replace specific characters with a mix of named and numeric entities, without parsing HTML structure.
What are the differences between Encode Entities and Encode Tags modes?
Encode Entities converts all printable characters (including CJK block characters) to decimal entities, while Encode Tags only targets eight specific characters (e.g., &, <, >) that can break HTML syntax. The latter uses named entities like & and numeric ones like ', whereas Encode Entities exclusively uses decimal codes.
How do I decode hex entities like / using this tool?
The HTML Entities Converter does not support hex entity decoding by default. To decode hex entities, use the 'Decode Entities' mode, which only reverses decimal entities (e.g., '). For hex entities, manual conversion or a specialized tool is required.
How does this tool compare to alternatives like W3Schools' encoder?
The HTML Entities Converter focuses on regex-based encoding/decoding without HTML parsing, while W3Schools' tool may include additional features like syntax highlighting or broader entity support. This tool excels in simplicity and precision for standard entity conversion but lacks advanced features found in dedicated libraries.
What should I do if the tool fails to decode an entity?
Check if the entity is malformed (e.g., missing semicolons) or unsupported (e.g., hex entities). Ensure the input text is properly formatted. For complex cases, use a dedicated HTML parser or manually adjust the entity syntax before reprocessing.