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JSON formatter and validator guides
Three short reads: why this matters, how to do it, and one specific way to use it.
Why You Can't Just Eyeball a Broken JSON File
A missing comma or an extra brace in a long JSON blob is nearly invisible to a person scanning the text, but exact to a parser. Here's why that gap exists, and what actually closes it.
Read the guideHow to Format and Validate JSON (And Fix the Error When It's Not Valid)
Paste JSON in and it's validated live: pretty-printed or minified, or told exactly which line and column broke it. Here's the whole process, mode by mode.
Read the guideJSON Format vs Minify: Which One Do You Actually Need
Format and Minify aren't interchangeable settings - one is for a person about to read the JSON, the other for a machine about to store or send it.
Read the guide