JsonML (JSON Markup Language). An almost non-lossy serialization format for sending XML as JSON (plain text in between elements is ignored). Uses the (element-name, attribute-dictionary, list-of-children) tuple format, which sadly means many common cases end up taking more bytes than the original XML. Still an improvement on serializations that behave differently when a list of children has only one item in it.
Recent articles
- The Summer of Johann: prompt injections as far as the eye can see - 15th August 2025
- Open weight LLMs exhibit inconsistent performance across providers - 15th August 2025
- LLM 0.27, the annotated release notes: GPT-5 and improved tool calling - 11th August 2025