Developer tools

HTML Entity Encoder and Decoder

HTML Entity Encoder and Decoder

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About this tool

About this tool

HTML Entity Encoder Decoder converts characters to named or numeric entities and decodes entities back to characters through browser-local conversion. This helps prevent injection while preparing HTML content.

Encode HTML-sensitive characters or decode entities to text. Use the full-width workspace to decode content while reviewing syntax, encodings, protocol fields, and implementation details. The tool accepts plain text, provides focused options, and creates plain text output that you can inspect, copy, download, or save as a local draft.

Built for daily work

How to use this tool

How to use this tool

1

Add the source content

Paste code or technical input, upload a supported plain text file, or load the working example. Check headers, delimiters, syntax, or line structure before processing.

2

Configure the operation

Review Mode. The selected controls determine how the HTML Entity Encoder and Decoder interprets the source and builds the result.

3

Run the tool

Start the HTML Entity Encoder and Decoder and review the result, visual preview, and technical report. Correct any reported issue and run the tool again when necessary.

4

Export or continue the workflow

Copy or download the plain text result, save a browser-local draft, or open a related tool for the next conversion, validation, or cleanup step.

Key features

Key features

Encode special characters to named or numeric entities

Convert <, >, &, ", and non-ASCII characters to HTML entities like &lt; &#60; or &#x3C; for safe embedding in markup.

Decode entities back to characters

Reverse named entities like &amp; and numeric references like &#169; back to their original characters.

Switch between encode and decode mode

Toggle the mode to convert a block of HTML to entities or restore entity-encoded text to readable characters.

Does not parse or sanitize HTML

The tool converts between characters and entity references. It does not strip tags, sanitize attributes, or prevent XSS.

Practical use cases

Practical use cases

    Private by default

    For local tools, input is processed in your browser and is not sent to application analytics.

    Data processing notice

    Technical details

    Technical details

    Input formatsplain text
    Output formatsplain text
    ProcessingLocal browser processing
    Task controlsMode
    Maximum local file25 MB per supported file
    Workspace featuresFocus mode, examples, copy, download, local drafts, and result reports

    Limitations and important notes

    Limitations and important notes

    • Decoding is not the same as verifying authenticity or trustworthiness.
    • Large or deeply structured input depends on available browser memory and may process more slowly on mobile devices.
    • The tool implements practical browser-based processing and may not reproduce every feature of specialist desktop software or every vendor-specific extension.
    • Keep the original source and review generated output before production, security-sensitive, financial, legal, or safety-critical use.

    Frequently asked questions

    Frequently asked questions

    Related guides and solutions

    Related guides and solutions

    Browse all guides

    What local browser processing means for online tools

    A transparent explanation of local tool processing, temporary browser memory, local storage, downloads, analytics boundaries, and cases that require remote services.

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