PromptLab - Prompt Improver for ChatGPT, Claude, Gemini

Improve prompts for better AI answers in ChatGPT, Gemini, and Claude.

PromptLab is a Chrome extension that turns prompts written in ChatGPT, Gemini, and Claude into clearer, more effective requests. Write your prompt normally, then press Command+Shift+. on Mac or Ctrl+Shift+. on Windows. PromptLab improves the prompt while preserving your original intent and applies it directly to the AI input box. You can immediately review the result or restore your original prompt using Undo. ✨ Key Features Works directly inside ChatGPT, Gemini, and Claude Improves prompts using a convenient keyboard shortcut Preserves the original intent while improving clarity and usefulness Applies the improved prompt directly to the input box Provides an Undo option after each improvement Supports both Korean and English interfaces 🧠 How PromptLab Improves Prompts PromptLab does more than correct grammar or make prompts longer. It identifies what kind of request you are making and improves the prompt with only the details that are helpful. Depending on the request, PromptLab may clarify the goal, add useful evaluation criteria, organize the requested answer, or include relevant considerations. PromptLab avoids adding unrelated requirements or changing your original goal. For example: “Recommend web service ideas” can be improved to request ideas with useful criteria such as target users, differentiation, feasibility, and monetization potential. “Explain this” does not contain enough information to answer accurately, so PromptLab improves it into one concise clarification request. 🚀 Useful For Getting clearer and more relevant AI responses Developing and evaluating ideas Writing, coding, studying, summarizing, and data analysis Users who are unsure how to write effective prompts Regular users of ChatGPT, Gemini, or Claude 🔒 Data Handling PromptLab sends only the prompt you choose to improve to its backend server. The backend uses the OpenAI API to generate the improved prompt. PromptLab does not store the full original prompt or the full improved prompt in its analytics logs. Stored analytics data is limited to anonymous metadata, including: Anonymous user ID Session ID Target AI platform Task category Before/after analysis metadata Improvement type and reason metadata Prompt hashes and character lengths 🌐 Supported Sites https://chatgpt.com https://chat.openai.com https://gemini.google.com https://claude.ai Improve your prompt with one shortcut and get more useful answers from AI.