Free Chatbot Prompt Designer

Create effective AI chatbot prompts with guided templates. Define your bot's personality, tone, and behavior to get a ready-to-use system prompt with greeting messages and configuration tips.

AI-Powered
Customizable
Ready to Use

Describe the main purpose and tasks of your chatbot

What is a Chatbot Prompt Designer?

A Chatbot Prompt Designer helps you create effective system prompts for AI chatbots. The system prompt defines your bot's personality, behavior, capabilities, and limitations—it's the foundation that shapes every conversation.

Our free tool generates complete, ready-to-use prompts based on your specifications. Simply describe what you want your chatbot to do, select its tone and personality, and get a professional system prompt along with greeting messages, sample conversations, and configuration tips.

Whether you're building a customer support bot, sales assistant, FAQ responder, or any other conversational AI, this tool helps you skip the trial-and-error phase and start with a solid foundation.

How the Designer Works

1. Describe Your Bot

Tell us what your chatbot should do—its purpose, tasks, and any specific requirements or constraints.

2. Configure Personality

Choose the tone, personality type, identity style, and response format that matches your brand and use case.

3. Get Your Prompt

Receive a complete system prompt, greeting message, sample conversations, and tips to deploy your chatbot.

What You'll Get

System Prompt

A complete, ready-to-use system prompt that defines your bot's personality, capabilities, and behavior guidelines.

Greeting Message

A welcoming first message that sets the right tone and helps users understand what your bot can do.

Sample Conversations

Example dialogues showing how your bot should respond to typical user queries in your use case.

Configuration Tips

Best practices and recommendations for deploying and fine-tuning your chatbot for optimal performance.

Customization Options

6 Tone Options

Professional, friendly, casual, enthusiastic, empathetic, or witty communication styles.

6 Personality Types

Helpful assistant, expert advisor, friendly companion, concise responder, patient teacher, or brand ambassador.

4 Identity Styles

Clearly AI, human-like, named character, or neutral identity presentation.

8 Use Cases

Customer support, sales, onboarding, FAQ, booking, e-commerce, education, and general purpose.

4 Response Styles

Concise, detailed, conversational, or structured response formats.

Free & Private

Completely free to use with no sign-up. Your content is processed securely.

Popular Use Cases

Create prompts for any type of conversational AI application.

Customer support bots
Sales assistants
FAQ responders
Booking assistants
Product recommenders
Lead qualification bots
Onboarding guides
Technical support
Virtual tutors
Survey collectors
Feedback gatherers
General assistants

Frequently Asked Questions

What is a system prompt?

A system prompt is the initial instruction given to an AI that defines its role, personality, capabilities, and constraints. It shapes how the AI responds to every user message and is essential for creating consistent, on-brand chatbot experiences.

Can I customize the generated prompt?

Absolutely! The generated prompt is a starting point. Copy it and modify any part to better fit your specific needs, add company-specific information, or adjust the tone and behavior.

What AI platforms does this work with?

The generated prompts work with any AI platform that accepts system prompts, including OpenAI (ChatGPT/GPT-4), Anthropic (Claude), and other LLM providers. The format is universal and platform-agnostic.

Should my bot admit it's an AI?

It depends on your use case and audience expectations. Being transparent about AI nature builds trust, but some scenarios benefit from a more natural, conversational style. Our identity options let you choose what works best for you.

How do I test my chatbot prompt?

Start by testing in a development environment with various user queries. Check that the bot maintains its personality, handles edge cases appropriately, and provides helpful responses. Iterate based on real user feedback once deployed.

Deploy Your Chatbot

Ready to Launch Your AI Chatbot?

With 99helpers, you can deploy a fully customized AI chatbot on your website in minutes. Train it on your content, apply your prompt, and start engaging customers—24/7.

No credit card required • Setup in minutes • Cancel anytime

Free Chatbot Prompt Designer - Create AI Chatbot Prompts | 99helpers | 99helpers.com