kapynOpen Source

claude_converter — A zero-dependency Python module for inspecting and converting Claude Code session files (.jsonl) into the messages forma

claude_converter is a Python module for converting Claude Code session files. It enables inspection and transformation of .jsonl session data into the Hugging Face Transformers messages format. This tool is useful for developers fine-tuning LLMs with Claude conversation data.

GitHub·Jun 27, 2026

Opening Kapyn…