JSON Escape/Unescape Tool
Free JSON escape/unescape tool. Escape special characters safely for JSON embedding or unescape them.
How JSON Escape/Unescape Tool Works
Escape: converts special characters in a string to their JSON escape sequences (\\, ", \n, \t, \r, \uXXXX). Unescape: reverses JSON escape sequences back to readable characters.
Use Cases
Calculate unescape json online
Get instant unescape json online calculations for your json tools analysis and reporting needs.
Verify Your Results
Double-check your manual calculations and validate your unescape json online against industry-standard formulas.
Quick Estimates
Make fast estimates and what-if analyses by experimenting with different inputs and seeing instant results.
Export & Share
Calculate results and easily export them for use in spreadsheets, reports, and presentations.
Frequently Asked Questions
What characters need escaping in JSON?
Required escapes per RFC 8259: double quote (") → \", backslash (\\) → \\\\, and control characters. Commonly escaped: newline → \n, tab → \t, carriage return → \r. Characters outside the Basic Multilingual Plane can use \uXXXX notation.
Why does my JSON break when I paste multiline text?
JSON strings cannot contain literal newlines — they must be escaped as \n. If you paste text with real newline characters into a JSON string value, the JSON becomes invalid. Use this tool to escape the text first.
What is the difference between JSON escape and HTML escape?
JSON escaping handles characters inside JSON string values (primarily quotes and control characters). HTML escaping handles characters inside HTML content (primarily &, <, >, "). They serve different contexts and use different escape sequences — don't confuse them.
Is my data stored?
No.
Can I use this on mobile?
Yes.
About This Tool
Built by the Calcyo team and last updated June 2026. All calculations follow industry-standard methodology. No data leaves your browser — calculations run entirely client-side using JavaScript. If you spot an error in the formula or benchmark data, email us at support@calcyo.xyz.