Is using JSON Validator | Lint JSON Syntax — Comprexa completely free?

Yes, JSON Validator | Lint JSON Syntax — Comprexa on Comprexa is 100% free forever with no usage limits, ads, or signups required.

Are my files or inputs safe when using JSON Validator | Lint JSON Syntax — Comprexa?

Absolutely. Comprexa processes everything client-side inside your web browser session. Your data never touches remote servers.

No setup required. JSON Validator | Lint JSON Syntax — Comprexa works directly inside Chrome, Safari, Firefox, Edge, and mobile browsers.

Upload File

—

Syntax Status

Total Objects

Total Arrays

Total Keys

0 B

File Size

JSON Document Editor

Paste or Upload JSON Enter or drop raw JSON into the editor or upload a .json file

Real-Time Validation Syntax is checked instantly with exact line & column error highlights

View Node Details Inspect total objects, arrays, keys, and file size statistics