Format JSON locally without leaking secrets
Formatting JSON is a small task, but the value is not just indentation. A local formatter avoids sending a pasted response to a third party and gives you a clean place to notice malformed syntax, unexpected fields and accidental secrets before the data reaches a ticket or chat.
A practical workflow
- 1
Minimise the sample
Keep only the fields needed to reproduce the issue. Replace tokens, email addresses and identifiers with invented values before pasting anything into a tool or a support conversation.
- 2
Format and read the error
Paste strict JSON and run the formatter. If parsing fails, use the reported position to check quotes, commas, brackets and whether a JavaScript-only construct was copied into a JSON document.
- 3
Validate the shape
Formatting confirms syntax, not that the data matches an API contract. Check required fields and types in the application or schema that owns the data.
- 4
Export only what you intend
Copy the formatted result into your local editor or download it when needed. Review for credentials and sensitive fields before saving or sending it.
JSON is not JavaScript
JSON requires quoted keys and string values, does not allow comments or trailing commas, and represents only a limited set of data types. A formatter should reject invalid input rather than “repair” it silently and produce a different document.
A compact minifier is useful for transport, but it should happen after a human or automated check understands the data. Smaller text is not safer text.
Why local processing matters
A browser-local utility can parse the sample without a server endpoint, account or upload queue. LittleKit does not include pasted JSON in analytics events or share links. That still does not make an input safe to disclose elsewhere, so keep the sample minimal.