Escaped JSON object string
Decode {\"name\":\"Ada\"} into clean unescaped {"name":"Ada"}.
Processed locally
JSON Unescape Online
Unescape JSON strings, inspect escape sequences and multi-layer depth, verify JSON validity, and copy raw or pretty-formatted JSON locally.
Overview
What this tool does
JSON Unescape Online safely decodes escaped JSON strings and escaped JSON content without code execution (eval-free). It detects backslash escape sequences (quotes, slashes, control characters, and Unicode escapes), handles multi-layer escaped strings, checks whether the unescaped result is valid JSON, and allows copying raw unescaped text or pretty-formatted JSON locally.
Workflow
How to use
Follow the core workflow below. Use “Show in tool” to locate the real control in the live tool above.
Choose whether to unescape or escape
Use Unescape to decode JSON escape sequences, or switch to Escape for the reverse workflow when preparing text for a JSON string.
UnescapeEscapePaste escaped JSON or a JSON string
Add the escaped value you want to decode. The tool can handle a complete JSON string literal or escaped string content without executing it.
Escaped JSON / JSON stringSampleUnescape one layer or all detected layers
Use Unescape once for a single JSON escaping layer or Unescape all layers when the value has been escaped repeatedly.
Unescape onceUnescape all layersReview escape diagnostics
Check escape types, malformed sequences, layer depth, and whether the final result is valid JSON before copying it.
DiagnosticsEscape LayersValid JSONCopy the result you actually need
Copy the raw unescaped value, or use Pretty JSON only when the final result parses as valid JSON.
Copy outputPretty JSONEscape text back to JSON-safe form
OptionalOpen Escape when you need the reverse workflow and choose escaped string content or a complete JSON string literal.
EscapeJSON string literalCopy output
Success
You have inspected and unescaped your JSON string. You can copy the raw unescaped result or pretty-formatted JSON locally.
Copy outputCopy Pretty JSONPractical cases
Examples
Escaped newlines and control characters
Convert \n and \t escape sequences into actual formatting characters for inspection.
Unicode escape sequences
Decode \u0041\u0064\u0061 and surrogate pairs into readable UTF-8 text.
Double-escaped JSON string
Run multi-layer unescape to safely strip multiple layers of backslash escapes.
Invalid escape diagnostics
Detect malformed escape sequences with character offset locations.
Troubleshooting
Common errors
- Confusing unescaping with full JSON parsing or schema validation.
- Using regex replacement to strip backslashes, which breaks valid backslashes in data.
- Using eval() or unsafe JavaScript execution to unescape strings in custom scripts.
- Double escaping strings when passing JSON payloads through loggers or message queues.
- Assuming valid unescaped text is schema-valid JSON without running validation.
- Pasting API tokens or credentials into external online unescape services.
From evidence to action
AI workflow
Use Prepare AI-ready context to export a local Markdown summary of escape sequence metrics, layer depth, malformed sequences, and output JSON validity. Share the summary or unescaped result directly into your coding workflow without executing code.
Developer guides
Learn with this tool
Understand the concept, inspect a testable example, then open it in the tool above.
FAQ
Frequently asked questions about JSON Unescape
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