JSON Formatter Best Practices for Daily API Work
Validate before you trust, standardize indentation, sort keys for diffs, and minify before sending. Here are the practices I follow. JSON formatting is the task I perform more than any other when working with APIs. The data comes in minified, I format it to read it, I edit it, I minify it again to send it back. The formatter is the tool in the middle, and how I use it determines whether I understand the data quickly or waste time squinting at structure. Here are the best practices I follow when formatting and validating JSON. Always Validate Before You Trust A formatter that only pretty-prints without validating will happily format broken JSON. It indents what it can and silently drops or mangles what it cannot. The result looks like valid JSON and is not. I use a formatter that validates first and reports the exact location of any syntax error before attempting to format. Validation catches the common mistakes: trailing commas, single quotes where double quotes are required, unescaped control characters, missing brackets. Each of these breaks parsing downstream, and each is invisible in a minified blob until you try to parse it. Validating before formatting means I never build on top of broken data. More tutorials are on the KitCraft Blog.