ComfyUI JSON formatter
Format valid JSON locally; malformed JSON is reported rather than silently repaired.
Loading local tool…
How to use this local tool
- Keep your original file. Supply a copy using the input above.
- Review the result and any error message before using it.
- Open the workflow checker to inspect graph references, or keep a recovery brief in Casebook.
What this tool checks
The formatter parses JSON and adds indentation. It does not invent missing nodes, repair invalid syntax, or validate model compatibility. Duplicate JSON object keys follow standard JSON parsing behavior, so preserve your original.