[ JSONL::Tools ]

AI JSONL Readiness Checker

Paste a sample or export and check the structure before sending it to OpenAI Batch or fine-tuning. Nothing is uploaded or saved.

> Or choose a file

Or choose a file

Drag & drop or click to select • nothing is uploaded

Max 2MB. Read in the browser only.

Need to inspect a file instead? Use the JSONL reader or the syntax validator.

Guides: OpenAI Batch JSONL · OpenAI fine-tuning JSONL.