JSONL Validator & Formatter
Validate and format datasets for OpenAI, HuggingFace, and custom fine-tuning
JSONL Content
0 lines
Format Guide
OpenAI Format
{"messages": [...]}Each message needs: role, content
HuggingFace Format
{"text": "...", "label": 0}Common for classification tasks
Best Practices
- One JSON object per line
- No trailing commas
- Consistent field names
- Include system messages (OpenAI)
- Validate before uploading