is-json

3.0.1

Check if a value is a valid JSON object/array string (or a plain object), without try/catch on the caller side.

License

A permissive license lets people do anything with your code with proper attribution and without warranty. The ISC license is functionally equivalent to the BSD 2-Clause and MIT licenses.

Published

May 27, 2026

89d ago

Package Registry

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License Sources Match

ISC confirmed by 2 independent sources — npm registry metadata and the LICENSE file in the package source — as of August 7, 2026.

Source	License	Class
Licensie (detected)	ISC	Permissive
npm (reported)	ISC	Permissive

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License File

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Versions

9 versions

Version	License	Published	Status
3.0.1 Latest Viewing	ISC	May 27, 2026	Scanned
3.0.0	ISC	May 26, 2026	Scanned
2.0.1	ISC	Sep 17, 2016	Scanned
2.0.0	ISC (Unverified)	Mar 3, 2016	Pending
1.2.5	ISC (Unverified)	Jul 2, 2014	Pending
1.1.5	ISC (Unverified)	Jul 2, 2014	Pending
1.1.4	ISC (Unverified)	Jul 2, 2014	Pending
1.1.3	ISC (Unverified)	May 25, 2014	Pending
1.1.2	ISC (Unverified)	May 20, 2014	Pending