Prompt Builder
Compose structured LLM prompts with roles, context, examples and output format — with a token estimate.
Runs entirely in your browser. Nothing you type or paste is sent anywhere.
Compose structured LLM prompts with roles, context, examples and output format — with a token estimate.
Runs entirely in your browser. Nothing you type or paste is sent anywhere.
Prompts can hold private details. The draft never leaves this browser; turn saving off to keep it in this tab only, which also deletes the saved copy.
Type {{name}} in any field to make a variable, then fill in its value in the Preview panel.
Who the model should be. It becomes “You are …” at the top.
What you want done. It goes last, after the context and examples.
≈ 0 tokens (estimate)
Your prompt appears here as you fill in the parts. Start with the task, or pick a template.