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Encode characters like <, >, and & into HTML entities, or decode entities back to text. Processing runs on your device.
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 on your device; 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 on your device.
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 stays on your device and is not uploaded.
FAQ
Frequently asked questions
Which characters are encoded?
Characters such as &, <, >, ", and ' are converted to HTML entities.
Is my text stored?
No. Everything stays on your device.
Is HTML Encoder and Decoder free to use?
Yes. Utilnivo tools are free to use and do not require an account.
Related pages
- Encoding tools — compare developer tools and read FAQs
- Browse all free online tools on Utilnivo
- Explore more developer tools on Utilnivo
- URL Encoder/Decoder — Encode or decode URL-safe text.
- HTML Formatter and Minifier — Format or minify HTML markup on your device.
- Base64 Encoder & Decoder — Encode and decode text with Base64.
- JSON Formatter — Format, minify, and validate JSON with optional key sorting.
- JSON Compare — Compare two JSON documents and list structural differences.
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