Choose Escape or Unescape and the exact string form.
Choose the operation and representation instead of relying on automatic detection.
Private RFC 8259 string tool
Escape or unescape one JSON string without uploading text
EscapeJSON makes quoted versus inner content explicit, transforms one layer and rejects malformed escapes or unpaired surrogates inside an isolated no-network capsule.
No account · no upload · strict one-pass grammar · copy or reuse explicitly
Three explicit steps
Transform without guessing
Paste bounded text; it stays in the no-network capsule.
The source stays inside the isolated no-network capsule.
Review, copy or explicitly reuse the single-pass result.
No recursive decoding happens unless you explicitly reuse the result.
Exact developer tasks
Use the grammar that owns the boundary
- Embed multiline text in one JSON value.
- Read one escaped value from a log or fixture.
- Inspect Unicode escapes and valid surrogate pairs.
Private by construction
Transform one string in this browser
Select the exact form, process one strict layer and copy only the result you reviewed.