JSON Escaper
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JSON is strict about what may appear inside a string: a raw double quote ends it, a backslash starts an escape sequence, and a literal newline or tab is simply invalid. That makes pasting arbitrary text into a JSON value surprisingly error-prone, especially when the text is itself code, a log line, or markup. This tool escapes text so it is valid inside a JSON string — quotes become \", backslashes become \\, and control characters become \n, \r, or \t — and unescapes in the other direction when you need to read an escaped value back as plain text. It is the quickest way to build a fixture, hand-edit a config value, or recover a readable stack trace from an escaped log field. The conversion round-trips exactly and runs entirely client-side, so payloads containing tokens or personal data are never uploaded.
Features
- Escapes quotes, backslashes, and control characters for JSON
- Converts newlines, carriage returns, and tabs to escape sequences
- Unescape mode restores the original text
- Swap input and output in one click
- Round-trips exactly with no character loss
- Live character, word, and byte counts
- Copy or download the result
- Fully client-side — nothing is uploaded
Why use this json escaper?
- Makes arbitrary text valid inside a JSON string
- Turns escaped log fields back into readable text
- Removes error-prone manual escaping
- Instant results at any size, with no signup
- Free with unlimited conversions
Frequently asked questions
Which characters must be escaped in a JSON string?
The double quote, the backslash, and control characters below U+0020 — most commonly newline, carriage return, and tab, which become \n, \r, and \t. Everything else may appear literally.
Do single quotes need escaping in JSON?
No. JSON strings are always delimited by double quotes, so an apostrophe is an ordinary character and passes through unchanged.
How is this different from JSON Stringify?
This escapes text so it can be placed inside a JSON string. Stringify takes a whole JSON document and turns it into one escaped string value. Use this for a single field, and Stringify for an entire payload.
Can I reverse the escaping?
Yes. Unescape mode converts the sequences back, which is the fastest way to read an escaped log message or error string as plain text.
Are Unicode characters escaped to \u sequences?
No. JSON is UTF-8 by default, so accented letters and non-Latin scripts are left readable rather than expanded into \u escapes.
Is my text uploaded?
No. The escaping runs entirely in your browser, so text containing credentials or personal data is never transmitted or stored.