Prompt Format Converter

Get a reliable result in three steps

1. 1

   Add the source value in the format described by this converter.

2. 2

   Review the conversion-specific settings and expected target format.

3. 3

   Convert the value, verify the result, then copy or download it.

What this tool does

Prompt Format Converter gives you a fast, focused way to convert role-based message JSON into ChatML, Llama 3, Alpaca, Vicuna, or Mistral text templates. Everything runs locally in this tab.

The result is produced only after the input is checked. If the value cannot be processed, the workspace reports a specific error instead of guessing.

Example

[{"role":"system","content":"Be concise."},{"role":"user","content":"Explain JSONL."}]

Limitations

• Review important output before using it in production.
• Very large inputs remain subject to browser memory limits.
• Templates are portable text representations and are not claimed to match every provider runtime exactly.