HTML Entity Encoder and Decoder
Local-first
Encode HTML entities or decode escaped HTML text in your browser.
What is HTML Entity Encoder Decoder?
Encode HTML entities or decode escaped HTML text in your browser.
- Encode HTML special characters
- Decode escaped HTML text
- Clean snippets locally
How to use it
- Paste the HTML entities, text content you want to process.
- Adjust quality, size, or output options when available.
- Run the tool to encode or decode HTML entities and preview the result on the page.
- Copy the output or download the generated file when it looks right.
Best use cases
- Clean developer data during debugging, API work, and documentation.
- Clean content before saving configs, sharing snippets, or importing tables.
- Use it when privacy matters and the input should stay inside the browser.
Official standards and scope
The HTML Standard defines character-reference syntax, the supported named-reference table, and DOMParser behavior for text/html. Encode replaces only ampersand, less-than, greater-than, and double-quote characters with named references; it does not encode apostrophes or choose rules for a specific text, quoted-attribute, URL, script, or style context. Decode parses the entire input as an HTML document and returns documentElement.textContent, so markup is removed, text from document regions is combined, and malformed or legacy references follow browser parser recovery. It is not an XML entity tool, sanitizer, validator, or lossless HTML round trip. Choose escaping for the actual insertion context and never treat decoded output as proof that untrusted input is safe.
- WHATWG HTML Standard: Character references - WHATWG
- WHATWG HTML Standard: Named character references - WHATWG
- WHATWG HTML Standard: The DOMParser interface - WHATWG
Sources checked July 27, 2026. Standards and dependencies can change; review the original sources again before formal integration or compliance decisions.
Notes
- Browser support for HTML entities, text can affect preview and export behavior.
- Invalid input will show an error when possible, but the tool will not guess missing fields.
- Preview the result before using it in production, publishing, or submission workflows.
FAQ
Does it execute HTML?
No. The tool treats input as text and returns encoded or decoded text.
Is HTML Entity Encoder Decoder free to use?
Yes. You can use it directly in the browser without creating an account.
Does HTML Entity Encoder Decoder support batch processing?
Text tools usually process one pasted input at a time, so split large jobs into smaller inputs.
Are files or content uploaded?
HTML Entity Encoder Decoder runs in your browser, so your input or files are not uploaded to DataHub servers.
Can I use HTML Entity Encoder Decoder on mobile?
Yes, but desktop browsers are better for large files, batch conversion, or long text input.
Why can conversion or validation fail?
Common causes include invalid syntax, missing required fields, or invisible characters copied with the input.
Can I use the result commercially?
The tool only processes your own input. Commercial use depends on the rights of the original file or data.