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DevToys vs JSONLint: catalog facts
DevToys	JSONLint
Free The open-source software is available without a license fee. Hosting, hardware and…	Free The website is free to use.
Windows, macOS, Linux	Web
Includes text conversion, formatters, encoders and validation tools.	Validates and pretty-prints in one step Accepts pasted JSON or a URL
Its small utilities do not replace a full development environment.	Syntax checking only on the website, no schema validation The related CLI package has not been updated since 2022
Downloadable app	Web application
Open source	Closed source
License: MIT	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.