Courtesy of Junie/Claude
It's not something I generally need to do, so I haven't been keeping up with how good LLMs are at this sort of conversion, but seeing your question I was curious so I took a couple of examples from https://www.json.org/example.html and gave them to the default model in the ChatGPT app (GPT 5.2 - at least that's the default for my ChatGPT Plus account) and it seemed to get each of them right on the first attempt.
cat file.yaml | yq -ojson
jsonviewertool•1mo ago
I wrote this short guide to explain when YAML → JSON conversion is required, common pitfalls (indentation, duplicate keys, anchors), and how this shows up in real Kubernetes and API workflows.
Feedback welcome.
alpb•1mo ago
jsonviewertool•1mo ago
The GitHub Pages article is intentionally minimal, but it’s not meant to be a generic LLM dump. The examples come from real issues I’ve hit while working with Kubernetes manifests and CI pipelines — especially duplicate keys, implicit type coercion, and indentation edge cases that silently break JSON conversion.
I’m actively expanding it with: - concrete Kubernetes + API payload examples - cases where YAML parses but produces invalid JSON - notes on tooling differences (yq, js-yaml, browser-based parsers)
The online converter exists mainly as a reference implementation that runs fully client-side and exposes these edge cases clearly: https://jsonviewertool.com/yaml-to-json
Happy to improve the guide based on feedback — appreciate the pushback.