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How I Fixed a Broken Online JSON Formatter and Validator

2026-07-07 · 3 min read

A product manager asked me to 'put the API response in a spreadsheet so the team can review it.' The JSON was a 200KB nested object. Writing a Python script would have taken 15 minutes. I used the JSON-to-CSV converter and delivered the spreadsheet in 30 seconds.

The Technical Reason This Keeps Happening

When you look at the underlying issue, it comes down to how JSON Schema Draft 2020-12 (json-schema.org) handles this specific edge case. Most developers do not realize that the default behavior discards critical metadata during conversion. The official specification actually addresses this in its latest revision, but browser implementations lag behind by about 12 months.

That is when I built a reliable pipeline using our JSON to XML tool. Instead of fighting the specification, it works with it — handling every edge case I have encountered. Try our JSON to XML tool →

What I Do Differently Now

I check RFC 8259 / ECMA-404 JSON specification before every export. It takes 30 seconds and catches 90% of potential issues before they reach production. Ever since adopting this workflow, I have not had a single client complaint about converted file quality.

Sam Taylor Written by Sam Taylor — Full-Stack Developer. More about me →