Guides

JSON Guides

Short, practical guides for common JSON tasks.

How to validate JSON (and fix common errors)

Understand what “invalid JSON” means and how to quickly fix the most common mistakes.

How to pretty print JSON

Make JSON readable with indentation and formatting best practices.

How to minify JSON

Reduce size by removing whitespace safely.

Sort JSON keys (when and why)

Clean up diffs and reviews by sorting object keys—plus when to avoid it.

How to compare two JSON files

Tips for getting clean diffs, sorting keys, and avoiding noise in comparisons.

JSONPath examples

Example paths for nested objects and arrays, plus how to think about paths when debugging APIs.

Escape JSON strings

Correctly escape quotes, backslashes, and newlines in JSON strings.

Handle large JSON (performance tips)

Practical ways to work with very large JSON in the browser.

JSON vs YAML

When to choose JSON or YAML, with examples and common pitfalls.

JSON privacy & safety tips

How to sanitize JSON before sharing and avoid leaking secrets.

Redact / sanitize JSON (remove secrets safely)

Practical redaction patterns that keep JSON useful for debugging.

NDJSON / JSON Lines explained

One JSON object per line for logs and streaming pipelines.

API error JSON payload patterns

Consistent error shapes with codes, field-level details, and trace IDs.

API JSON best practices

Naming, nulls, pagination, errors, and versioning.

JSON Schema basics

Validate the structure of JSON, not just syntax.