Free AI Prompt Library - ChatGPT, Claude, Gemini
Library of 4106 free AI prompts for ChatGPT, Claude and Gemini. Sorted by category, one-click copy, no signup required.
Looking for free AI prompts that actually work? Our library gathers 4106 prompts tested and optimized for ChatGPT, Claude and Gemini. Everything is 100% free - no signup, no copy limit.
Every prompt is sorted by category (writing, productivity, marketing, code, education…) and comes with concrete examples. You save time by reaching for proven formulations instead of trial-and-error each time.
100% free
No paywall, no mandatory signup to copy a prompt.
Multi-AI
Every prompt works with ChatGPT, Claude, Gemini and Mistral.
Categorized
Filter by topic, difficulty and use case.
Bilingual
Available in French and English, tailored to each audience.
Showing 4069-4080 of 4106 prompts
Generate Technical API Documentation
Generates complete, developer-oriented technical documentation for an API, including quickstart guide, endpoint reference and error table.
Optimize a Slow SQL Query
Analyzes the execution plan of a slow SQL query, identifies bottlenecks and proposes indexes, rewrites and advanced optimization strategies.
Refactor Legacy Python Code
Analyzes legacy Python code, identifies code smells and produces a commented refactored version with a prioritized action plan and regression tests.
Design a REST API Following Best Practices
Guides the design of a complete, well-structured REST API, from endpoint definition to OpenAPI documentation, following industry standards.
Write Comprehensive Unit Tests for a Function
Generates a comprehensive unit test suite following the AAA pattern, covering all nominal, edge and error scenarios for a given function.
Design a Microservices Architecture for an Application
Guides the design of a complete microservices architecture, from service decomposition to deployment strategy, adapted to project constraints.
Perform a Code Review Like a Senior Developer
Simulates the code review of an experienced tech lead, covering all aspects of a PR: quality, security, performance and maintainability.
Debug a JavaScript Error Systematically
A structured prompt to analyze and fix a JavaScript error methodically, identifying the root cause and applying a documented fix.
Design a Marketing Webinar That Converts to Customers
This prompt generates a complete webinar plan from the registration page to post-event follow-up, with a narrative structure optimized for conversion.
Write High Click-Through Rate Google Ads
This prompt generates a complete set of responsive Google Ads (15 headlines + 4 descriptions + extensions) optimized to maximize CTR and Quality Score.
Create an Innovative Customer Loyalty Program
This prompt generates a complete loyalty program with point mechanics, tiers, gamified rewards catalog and projected ROI, adapted to your economics.
Build a Brand Podcast Strategy
This prompt generates a complete podcast strategy from conception to distribution, with differentiated positioning and an operational launch plan.