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JSON String Escape Online — Escape & Unescape

Escape or unescape strings for JSON, JavaScript/TypeScript, SQL and regex — live, entirely in your browser.

Need HTML entity or URL encoding instead? Use our HTML & URL Encoder / Decoder tool.

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Result

This page opens the string escaper with JSON mode already selected — paste a raw string and get back exactly what the JSON spec requires between the quotes, live as you type.

JSON escaping turns a double quote into \", a backslash into \\, and control characters like newline and tab into \n and \t, so the value can sit safely as a JSON string in a payload, a .json file or a config.

Switch to decode to reverse it: paste an already-escaped fragment and get the original text back — malformed sequences show a clear error instead of breaking silently. The full tool also handles JavaScript, SQL and regex escaping, entirely in your browser.

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Executed in Browser

Your files and inputs never leave this device. Processing runs completely offline. 100% Secure.

Accepted Formats & Rules

  • Live conversion on every keystroke — no button to press.
  • JavaScript mode lets you pick single quotes, double quotes or backticks, and escapes exactly what that quote style needs, including template-literal ${.
  • Clear, localized error messages when a malformed escape sequence can't be decoded, instead of a crash or a blank result.

Key Benefits

✓ Zero server round-trip: every escape and unescape happens instantly in your browser tab.
✓ Four real formats: JSON, JavaScript/TypeScript with a quote-style choice, SQL and regex — not simplified stand-ins.
✓ Honest SQL warning: a clear, persistent disclaimer keeps quick escaping separate from production-safe parameterized queries.

Use Cases

  • • Escape a user bio or search term before splicing it into a hand-built JSON string in a shell script or config generator, so quotes and newlines don't break the payload.
  • • Get a copy-paste-ready JavaScript string literal in your chosen quote style — including the ${ escaping template literals need — instead of hand-escaping backslashes by eye.
  • • Turn a user-typed search phrase into a safe literal for new RegExp(), so periods and asterisks in the query are matched exactly instead of acting as wildcards.