HTML Encoder and Decoder

How to use this tool

1. Paste source text, code, or data into the HTML Encoder and Decoder input panel. 2. Choose transform or validation options shown for HTML Encoder and Decoder. 3. Run HTML Encoder and Decoder or read automatic output. 4. Review errors or diff output carefully. 5. Copy the transformed result. Processing runs in your browser; inputs are not uploaded to our server.

Worked example

Example: paste a small sample input into HTML Encoder and Decoder, run the transform or validation, and compare the output with the before text—fix any syntax errors reported before copying.

How it works

Encode characters like <, >, and & into HTML entities, or decode entities back to text. Processing runs in your browser.

Limitations

Results are based on the inputs you provide and may not cover every edge case. This tool is for general use and is not professional advice.

Privacy and file handling

Your data is processed in your browser and is not uploaded to our server.

Frequently asked questions

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