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Privacy first JSON schema validator that is safe for corporate environments Safe for corporate environment, zero data shared with remote servers. Looking for a quick, reusable way to verify that your JSON fields have the right values? This tool makes it easy to validate JSON and clearly communicate the results. Set up reusable criteria to check your JSON, and get a pre-formatted story that’s ready to paste directly into Slack. Need to ensure contacts.*.age is set to 22? This tool has you covered. Does contacts.0.id need a value? Let this tool handle it. Checking if .contacts.*.hobbies.0 includes "hiking"? Look no further! Save time, reduce frustration, and validate that your JSON payloads have the right fields! Note: Safe for corporate environments. This extension requires no access to any websites nor does it require or use network connectivity. All data is stored in browser local storage, NOT on remote servers.
Aug 20, 2026
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