Yes. All free tools work in the browser with no signup required.

Which models does this work with?

Works great with ChatGPT, Claude, Gemini, Grok, DeepSeek and more. Copy the prompt and paste wherever you use AI.

Can I use the outputs commercially?

Yes. Outputs are yours to use for any purpose.

Can I customize the structure?

Yes. Adjust the inputs and regenerate to refine tone, context and constraints.

General LLM

Gemini Prompt Generator

Name: Prompt Sloth
Availability: InStock
Rating: 4.8 (138 reviews)
Author: Prompt Sloth

Create powerful, well-structured prompts for Google Gemini — tuned for reasoning, writing, and analysis. Free Gemini prompt generator, no signup required.

10,000+ people use this on every website. Join them.

Add to Chrome

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Pro Tip

100,000+ Prompts Already Improved

The unfair advantage 10,000+ people already have. One click to improve any prompt on ChatGPT, Claude, Gemini — or any website. Don’t get left behind.

Add to Chrome - It's Free

★★★★★4.8 rating•10,000+ users

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Want it inside Gemini?

Skip the copy-paste. The free Prompt Sloth extension improves your prompts in one click, right inside gemini.google.com.

See Prompt Sloth for Gemini

Prompt wording is measurable, not cosmetic. Researchers at the University of Washington and the Allen Institute for AI found that prompt formatting changes alone can swing LLM accuracy by up to 76 points (Sclar et al., ICLR 2024), and adding a single reasoning sentence lifted one math benchmark from 17.7% to 78.7% accuracy (Kojima et al., NeurIPS 2022).

FAQs about Gemini Prompt Generator

Enter your idea or task, then generate a structured, high-quality prompt. Copy the result into your AI tool.