PromptLab - Prompt Improver for ChatGPT, Claude, Gemini

Tracking since May 17, 2026.

Changelog

• Jun 12, 2026
  description

  PromptLab is a Chrome extension that helps you turn prompts written in ChatGPT, Gemini, and Claude into clearer and more useful prompts.
  
  When you are writing a question and wondering “Will this get the answer I want?”, open PromptLab to review your current prompt, edit it if needed, and generate an improved version. You can insert the improved prompt back into the AI input box with one click.
  
  ✨ Key Features
  - Detects the current prompt in ChatGPT, Gemini, and Claude
  - Lets you edit the original prompt inside the PromptLab panel
  - Improves prompts into clearer and more actionable requests
  - Shows before/after quality signals
  - Inserts the improved prompt directly into the AI input box
  - Lets you rate the answer after using a prompt
  
  🧠 How PromptLab Improves Prompts
  PromptLab is not designed to simply make prompts longer.
  
  It preserves your original intent while checking whether the prompt has enough:
  
  - Goal
  - Context
  - Output format
  - Constraints
  - Reference information or examples
  
  For example, a question like “Is there a way to make GPT directly control Microsoft Word?” can be improved into a prompt that asks for possible automation methods, tradeoffs, and implementation examples.
  
  A vague prompt like “Write a blog post” can be improved into a prompt that asks for the topic, target audience, tone, length, and key points before drafting.
  
  🚀 Useful For
  - Users who want more accurate AI answers
  - People who are not sure how to write effective prompts
  - Heavy users of ChatGPT, Gemini, or Claude
  - Writing, coding, studying, summarizing, and analysis workflows
  
  🔒 Data Handling
  PromptLab sends the prompt you enter to a backend server to provide the prompt improvement feature. The backend server may use the OpenAI API to generate the improved prompt.
  
  PromptLab does not store the full original prompt or the full improved prompt in its logs.
  
  Stored data is limited to anonymous metadata, such as:
  
  - Anonymous user ID
  - Session ID
  - Target AI platform
  - Task category
  - Before/after analysis metadata
  - Improvement type and reason metadata
  - Prompt hashes and character lengths
  - Satisfaction rating
  
  🌐 Supported Sites
  - https://chatgpt.com
  - https://chat.openai.com
  - https://gemini.google.com
  - https://claude.ai
  
  Use PromptLab to write better prompts and get better answers from AI.

  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.

• Jun 12, 2026
  name

  PromptLab Extension

  PromptLab - Prompt Improver for ChatGPT, Claude, Gemini

• Jun 5, 2026
  description

  PromptLab helps ChatGPT users improve vague prompts into clearer and more specific prompts.
  
  It analyzes prompt quality signals such as goal, context, format, constraints, and references. Users can insert the improved prompt into ChatGPT and rate the usefulness of the response.
  
  PromptLab collects limited anonymous metadata for research and product improvement. It does not store full original prompts, improved prompts, or ChatGPT responses.
  ---
  PromptLab은 ChatGPT 사용자가 모호한 프롬프트를 더 명확하고 구체적인 프롬프트로 개선할 수 있도록 돕는 확장 프로그램입니다.
  
  목표, 맥락, 출력 형식, 제약 조건, 참고 자료 여부 같은 프롬프트 품질 지표를 분석하고, 사용자는 개선된 프롬프트를 ChatGPT 입력창에 넣은 뒤 답변 만족도를 평가할 수 있습니다.
  
  PromptLab은 연구 및 제품 개선을 위해 제한적인 익명 메타데이터만 수집합니다. 원본 프롬프트 전문, 개선된 프롬프트 전문, ChatGPT 답변 전문은 저장하지 않습니다.
  
  추후 여러 생성형 AI 모델 추가 예정입니다!

  PromptLab is a Chrome extension that helps you turn prompts written in ChatGPT, Gemini, and Claude into clearer and more useful prompts.
  
  When you are writing a question and wondering “Will this get the answer I want?”, open PromptLab to review your current prompt, edit it if needed, and generate an improved version. You can insert the improved prompt back into the AI input box with one click.
  
  ✨ Key Features
  - Detects the current prompt in ChatGPT, Gemini, and Claude
  - Lets you edit the original prompt inside the PromptLab panel
  - Improves prompts into clearer and more actionable requests
  - Shows before/after quality signals
  - Inserts the improved prompt directly into the AI input box
  - Lets you rate the answer after using a prompt
  
  🧠 How PromptLab Improves Prompts
  PromptLab is not designed to simply make prompts longer.
  
  It preserves your original intent while checking whether the prompt has enough:
  
  - Goal
  - Context
  - Output format
  - Constraints
  - Reference information or examples
  
  For example, a question like “Is there a way to make GPT directly control Microsoft Word?” can be improved into a prompt that asks for possible automation methods, tradeoffs, and implementation examples.
  
  A vague prompt like “Write a blog post” can be improved into a prompt that asks for the topic, target audience, tone, length, and key points before drafting.
  
  🚀 Useful For
  - Users who want more accurate AI answers
  - People who are not sure how to write effective prompts
  - Heavy users of ChatGPT, Gemini, or Claude
  - Writing, coding, studying, summarizing, and analysis workflows
  
  🔒 Data Handling
  PromptLab sends the prompt you enter to a backend server to provide the prompt improvement feature. The backend server may use the OpenAI API to generate the improved prompt.
  
  PromptLab does not store the full original prompt or the full improved prompt in its logs.
  
  Stored data is limited to anonymous metadata, such as:
  
  - Anonymous user ID
  - Session ID
  - Target AI platform
  - Task category
  - Before/after analysis metadata
  - Improvement type and reason metadata
  - Prompt hashes and character lengths
  - Satisfaction rating
  
  🌐 Supported Sites
  - https://chatgpt.com
  - https://chat.openai.com
  - https://gemini.google.com
  - https://claude.ai
  
  Use PromptLab to write better prompts and get better answers from AI.

• Jun 5, 2026
  short_description

  Analyze and improve prompts on ChatGPT with PromptLab.

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

• May 23, 2026
  description

  PromptLab helps ChatGPT users improve vague prompts into clearer and more specific prompts.
  
  It analyzes prompt quality signals such as goal, context, format, constraints, and references. Users can insert the improved prompt into ChatGPT and rate the usefulness of the response.
  
  PromptLab collects limited anonymous metadata for research and product improvement. It does not store full original prompts, improved prompts, or ChatGPT responses.
  
  ---
  
  PromptLab은 ChatGPT 사용자가 모호한 프롬프트를 더 명확하고 구체적인 프롬프트로 개선할 수 있도록 돕는 확장 프로그램입니다.
  
  목표, 맥락, 출력 형식, 제약 조건, 참고 자료 여부 같은 프롬프트 품질 지표를 분석하고, 사용자는 개선된 프롬프트를 ChatGPT 입력창에 넣은 뒤 답변 만족도를 평가할 수 있습니다.
  
  PromptLab은 연구 및 제품 개선을 위해 제한적인 익명 메타데이터만 수집합니다. 원본 프롬프트 전문, 개선된 프롬프트 전문, ChatGPT 답변 전문은 저장하지 않습니다.

  PromptLab helps ChatGPT users improve vague prompts into clearer and more specific prompts.
  
  It analyzes prompt quality signals such as goal, context, format, constraints, and references. Users can insert the improved prompt into ChatGPT and rate the usefulness of the response.
  
  PromptLab collects limited anonymous metadata for research and product improvement. It does not store full original prompts, improved prompts, or ChatGPT responses.
  ---
  PromptLab은 ChatGPT 사용자가 모호한 프롬프트를 더 명확하고 구체적인 프롬프트로 개선할 수 있도록 돕는 확장 프로그램입니다.
  
  목표, 맥락, 출력 형식, 제약 조건, 참고 자료 여부 같은 프롬프트 품질 지표를 분석하고, 사용자는 개선된 프롬프트를 ChatGPT 입력창에 넣은 뒤 답변 만족도를 평가할 수 있습니다.
  
  PromptLab은 연구 및 제품 개선을 위해 제한적인 익명 메타데이터만 수집합니다. 원본 프롬프트 전문, 개선된 프롬프트 전문, ChatGPT 답변 전문은 저장하지 않습니다.
  
  추후 여러 생성형 AI 모델 추가 예정입니다!

Permissions & access

Permissions

storage

Host access

https://promptlab-server.onrender.com/*

Screenshots