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Developer ToolsFree online tool
Convert special HTML characters to entities and decode entities back into readable text.
Paste or enter the data you want to process, then run the tool.
Use the controls above, check the result, then copy or download it when available.
No. It only encodes or decodes entities; application security requires context-aware sanitization and escaping.
Use this tool whenever you need: Working with HTML content, escaping text and debugging encoded markup. It offers a fast, client-side workflow without sign-ups, installation or complex software.
Yes. All processing executes locally in your browser using client-side JavaScript. Your inputs, files and calculations remain private and are never uploaded to our servers.
Encoding is useful for representing text safely in HTML, but context-specific output escaping is still important in applications. Important note: It is not a complete HTML sanitizer and should not be treated as one.
Developer utility
Convert reserved HTML characters and entities directly in your browser.
Type HTML text with reserved characters.
Reserved characters like < and & are converted to entities.
Your converted value updates as you type.
0 characters
Good to know
Encoding covers common reserved characters such as <, >, & and quotes. Processing stays on this device.