Chat Training JSONL Validator
Check the shape of text-only chat examples in JSONL.
Processing stays in your browser. Checks system/user/assistant string messages with both user and assistant examples. Provider limits, token counts, training eligibility, and multimodal formats require separate checks.
How to use the chat training jsonl validator
Check the shape of text-only chat examples in JSONL. Complete the jsonl examples fields above, or upload a UTF-8 text file for jsonl examples. Choose Run tool, review the output, then copy or download the result.
Example
One valid line contains one chat training example.
Good to know
Checks system/user/assistant string messages with both user and assistant examples. Provider limits, token counts, training eligibility, and multimodal formats require separate checks.