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Free JSON Escape /
Unescape

JSON permits only \" \\ \/ \b \f \n \r \t \uXXXX. JavaScript-only forms such as \x41, \0, \v, \' and \u{1F600} are rejected. Generated output is decoded back through the strict JSON-string parser before Copy/Download is enabled.

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About Free JSON Escape / Unescape

A strict, browser-local JSON string workbench for APIs, logs, configuration and JSON-in-JSON payloads — with RFC 8259 escape rules, Unicode interoperability checks, nested-layer analysis, HTML-embedding hardening and exact text round-trip verification.

Workspace options

  • Operation
  • JSON string form
  • Safety profile
  • Escape layers
  • Open file
  • Hexadecimal style

Available actions

  • Converter
  • Escape Inspector
  • Nesting Lab
  • Batch
  • Settings
  • Guide