Encoding
HTML Escape
Escape HTML special characters (< > & " ') to entities. Safe injection into HTML markup.
Output will appear here…Why use our HTML Escape?
100% private
Everything runs in your browser. Your data never leaves your device — safe for production payloads.
Instant results
No round trips, no rate limits, no login. Format, validate and inspect megabytes of JSON in milliseconds.
Standards-first
Follows RFC 8259 / ECMA-404 exactly. Reports errors with precise line and column diagnostics.
Related developer tools
HTML Unescape
Decode HTML entities back to characters — supports & < numeric ' and hex ' forms.
OpenXML Escape
Escape XML reserved characters to their entity form. Produces safe XML text content.
OpenCSV Escape
Escape a value for safe inclusion in a CSV cell — quotes fields containing commas, quotes or newlines.
OpenJava Escape
Escape a plain string into a Java string literal — non-ASCII characters escaped as \uXXXX.
OpenJavaScript Escape
Escape a plain string into a JavaScript string literal — handles quotes, backslashes and control characters.
OpenJSON Escape
Escape text into a valid JSON string literal — newlines, quotes and unicode handled automatically.
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