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Free AI prompt toolkit

Better prompts, better answers from any AI

A free toolkit that turns a rough idea into a clear, well-structured prompt — and guides that teach you how prompting actually works. No account, nothing to install.

Optimize a promptBrowse all tools
100% free, no sign-up Runs in your browser Works with every AI model Private by design
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0Free AI tools
0In-depth guides
0Languages
0Cost, forever
The toolkit

Ten tools for every part of prompting

Whether you write, code, design or research, there is a tool here that gets you a stronger prompt in seconds.

Prompt Optimizer

Turn a plain request into a clear, structured prompt any AI can follow.

Prompt Analyzer

Score any prompt and get specific, actionable fixes.

Image Prompt Generator

Build detailed prompts for Midjourney, DALL·E and Stable Diffusion.

Prompt Templates Library

Copy-ready prompt templates for work, study and creative projects.

System Prompt Generator

Design the system prompt behind a custom assistant, GPT or agent.

Rewrite Prompt Generator

Get a precise prompt to rewrite any text in the tone you want.

Reasoning Prompt Builder

Wrap any problem in a reasoning scaffold for more reliable answers.

JSON Prompt Builder

Force clean, structured JSON output with a schema the AI must follow.

Token Counter & Cost Estimator

Estimate tokens and API cost for your text across popular models.

Negative Prompt Generator

List what to exclude and get a clean negative prompt for image models.

See all tools
Why it helps

Prompting is a skill. These tools shorten the learning curve.

Small changes to how you ask make a big difference to what you get back. Here is what you gain.

Structure in seconds

A vague request becomes a prompt with a clear role, task, constraints and output format — the parts models respond to best.

Completely private

Every tool runs locally in your browser. Your text is never sent to a server, stored or logged.

Model-aware

Get output tuned for ChatGPT, Claude, Gemini, Llama and more, instead of a one-size-fits-all template.

Free with no catch

No account, no credit card, no usage limits. The tools and every guide are free to use as often as you like.

Learn as you go

Each tool pairs with a plain-English guide, so you understand why a prompt works, not just what to paste.

For everyone

From first-time users to engineers building AI features — the tools scale from simple asks to advanced workflows.

How it works

From idea to great prompt in three steps

1

Describe what you want

Type your idea in ordinary language. No special syntax, no jargon — just say what you are trying to get the AI to do.

2

Add a little direction

Pick a target model, a tone and a few options. The tool fills in the structure that professional prompt writers use by default.

3

Copy and use it

Get a clean, ready-to-paste prompt plus a quality score. Drop it into your favourite AI and compare the difference.

Learn prompting

Guides that actually teach you something

Short, practical, example-heavy. Read one and your next prompt will be noticeably better.

Basics

How to Write Effective AI Prompts

The single skill that improves every AI result. Learn the simple structure behind prompts that work, with plenty of before-and-after examples.

9 min read
Fundamentals

Prompt Engineering Fundamentals

Role, context, constraints, format, examples. The six building blocks that underpin almost every strong prompt — explained with examples you can reuse.

11 min read
ChatGPT

ChatGPT Prompts Guide

How to get sharper, more useful answers from ChatGPT — from custom instructions and roles to iteration and formatting tricks that make a real difference.

10 min read
Claude

Claude Prompting Guide

Claude rewards clear structure and context. Learn the techniques that work especially well with Anthropic's models, including XML tags and long-context tips.

10 min read
Techniques

Few-Shot vs Zero-Shot Prompting

Adding examples to a prompt can transform the output — or waste tokens. Here's how zero-shot, one-shot and few-shot compare, and when to reach for each.

8 min read
Techniques

Chain-of-Thought Prompting

Ask a model to think step by step and it gets multi-step problems right far more often. Here's how chain-of-thought works and how to use it well.

9 min read
Read all guides
FAQ

Frequently asked questions

Yes. Every tool and every guide is free to use with no account, no credit card and no usage limits. The site is supported by unobtrusive ads, not by charging you.
No. You can use everything immediately. There is nothing to sign up for and nothing to install.
All of them. The prompts you build work with ChatGPT, Claude, Gemini, Llama, Grok, Mistral, DeepSeek, Perplexity and any other chat-based model. Several tools also let you tune the output for a specific model.
Completely. The tools run entirely in your browser using JavaScript. Nothing you type is uploaded, saved on a server or shared with anyone.
Not at all. The tools are built for people who have never heard the term. If you want to go deeper, the guides explain the ideas in plain language with real examples.
Yes. Prompts you create are yours to use for any purpose, including work and client projects.

Write your next prompt in seconds

Turn a rough idea into a clear, structured prompt any AI can follow. Free, private, and no account needed.

Open the Prompt OptimizerSee all tools