Escape JSON String

Whenever JSON has to be embedded inside another JSON document, a URL, a database column or source code, the quotes and backslashes inside it must be escaped first — or the result is invalid. Escape JSON String does that conversion for you: paste plain text and get back a complete, valid JSON string literal with every special character properly escaped.

It is the mirror image of the Unescape JSON String tool. Build a value once, escape it, and drop it into a payload or a config without worrying about broken quotes or raw newlines. Everything runs locally in your browser.

• Complete JSON string literal: the output is double-quoted and ready to paste.
• All essential escapes: quotes, backslashes, newlines, tabs, carriage returns and control characters.
• Strictly valid: the result parses back to your original text with JSON.parse.
• Round-trip pairing: use Unescape JSON String to reverse the process.
• Copy or download: grab the escaped literal or save it as a file.
• Private by design: all processing happens locally in your browser.

1. Paste your plain text — quotes, newlines and backslashes welcome.
2. Read the escaped literal in the output area.
3. Copy or download it into your code, payload or config.

Example 1 — Nested payloads. A log message or a user-supplied string is embedded inside a larger JSON request. Escape it so the outer payload stays valid.

Example 2 — Source code. You are generating JSON-producing code and need a string constant that contains quotes and newlines. Paste it, copy the literal, done.

Example 3 — Database storage. Storing a block of free text in a JSON column means escaping the characters JSON reserves. Escape first, store safely.

• Valid output every time — no hand-editing of escapes.
• Time saved — quotes and newlines handled automatically.
• Fewer bugs — no broken literals in generated code or payloads.
• Round-trip pairing — reverses cleanly with the unescape tool.
• Free and private — runs locally, no uploads.