Prompt Library

Curated AI prompt templates plus a role-task-context prompt generator.

Prompt generator

Role

Task

Context

Output format

Constraints

Act as expert copywriter.

Task: write a product tagline.

Context:
audience: indie developers; product: privacy-first toolbox

Output format:
5 options, each under 8 words, numbered list

Constraints:
no jargon, no emojis

Library

Writing

Blog post outline

Act as a senior content strategist. Create a detailed blog post outline about {topic} for {audience}. Include an SEO title, meta description, H2/H3 structure, key talking points under each section, and a call-to-action.

Writing

Rewrite for clarity

Rewrite the following text for clarity, concision, and a {tone} tone. Preserve meaning and factual accuracy. Return only the revised text.

TEXT:
{text}

Writing

Cold email

Write a short cold email to {recipient} at {company}. Goal: {goal}. Tone: friendly, respectful of their time. Under 120 words. Include a soft CTA.

Coding

Explain code

Explain the following code line by line. Then summarize its purpose in 2 sentences and list any bugs, edge cases, or improvements.

CODE:
```
{code}
```

Coding

Refactor request

Refactor this {language} code for readability and performance. Keep behavior identical. Explain the changes as a short bulleted list.

CODE:
```
{code}
```

Coding

Unit tests

Write thorough unit tests for the following function using {framework}. Cover happy path, edge cases, and error handling.

CODE:
```
{code}
```

Marketing

Landing headline

Generate 10 landing page headlines for {product}, a {category} for {audience}. Optimize for clarity and benefit-first language. Include a subheadline for each.

Marketing

Ad copy variants

Write 5 ad copy variants for {product} targeting {audience} on {platform}. Each under 90 characters. Include hook, benefit, CTA.

Image

Product photo

Studio product photograph of {subject}, {angle}, soft directional lighting from the left, seamless {backgroundColor} background, sharp focus, 85mm lens, high detail, commercial photography.

Image

Illustration

Editorial illustration of {subject} in the style of {style}. Limited palette of {colors}. Flat shapes, subtle grain texture, negative space composition.

Research

Literature summary

Summarize the key findings on {topic} across recent sources. Structure: 1) consensus, 2) points of disagreement, 3) open questions. Cite sources inline.

Research

Compare options

Compare {optionA} and {optionB} for {useCase}. Table with columns: criteria, {optionA}, {optionB}. Then a 3-sentence recommendation.

How to use Prompt Library

1
Open Prompt Library
Open the prompt library on Easutil — there is nothing to install and no account to create.
2
Add your input
Paste or type your prompt or text into the input area, or adjust the options shown above the result.
3
Review the output
Prompt Library updates the analysis or improved prompt instantly as you type, so you can iterate without pressing a button.
4
Copy or download
Use the Copy button to grab the result, or download it where a file export is offered.