# Finetune JSONL Converter — yeezhan.com > One-time pay-per-task emergency tool to make your file ready for submission. > No credits, no balance. One payment unlocks one task result, valid for 24 hours. Tool domain: https://finetune-convert.yeezhan.com Skill definition: https://finetune-convert.yeezhan.com/skill/SKILL.md API documentation: https://finetune-convert.yeezhan.com/api/docs ## What this tool does Convert fine-tuning datasets between OpenAI ChatML, ShareGPT and Alpaca — line by line, with exact line numbers on bad rows. ## Typical user problems - Every fine-tuning pipeline wants its own JSONL shape — OpenAI takes messages, most tooling still speaks ShareGPT, LoRA scripts want Alpaca. ## Parameters - format: enum, required. 目标格式 ## Pricing - Watermarked preview: free, no login required - Final clean output: $0.99 one-time per task - Require login (email/phone OTP) to complete payment - Result available for download 24 hours after payment ## Limitations - Max input 20 MB