After working with APIs for years, I’ve noticed these common JSON mistakes:
Trailing commas
Missing quotes around keys
Single quotes instead of double quotes
Invalid nesting
Copy-pasted minified JSON without formatting
Debugging these manually wastes a lot of time.
That’s actually why I built a small tool to instantly format and validate JSON while highlighting the exact error location.
👉 myjsontool.com
If anyone’s interested, I’d love feedback on improving it.
What JSON issues frustrate you the most?
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