Prompt+
FeaturesExtensionGitHubLog inGet Started→

Enhance Your Prompts for Claude

Build clear, constraint-rich prompts that make the most of Claude's long context and careful reasoning.

Start Building Free Get the Chrome Extension
Try your own prompt
Raw Prompt InputEditable
~0 tokensPricing needs verification
Your enhanced prompt
Your result will appear here after you enhance a prompt.
No model run yetReview before use
Adds explicit role, context, and step-by-step instructions Claude follows reliably
One-click open your enhanced prompt in Claude
Free Chrome extension that enhances right inside claude.ai
Expert level adds chain-of-thought reasoning for complex tasks
No limits, no credit card — genuinely free forever

Works with Claude, ChatGPT, Claude, Gemini, DeepSeek, Llama, and any other major model — free forever, no limits.

Prompt+

// Free AI Prompt Architect & Extension Platform

GitHub RepositorySupport Email

Product

  • Features
  • Chrome Extension
  • AI Sandbox
  • Documentation

Resources

  • Prompt Templates
  • Engineering Guide
  • Token Cost Calculator

Model Optimizers

  • Enhance for ChatGPT
  • Enhance for Claude
  • Enhance for Gemini

Legal & Privacy

  • Privacy Policy
  • Terms of Service
  • Contact Us

© 2026 Prompt+ Architect AI. Your prompts stay yours.

100% Free • On-Device AI Available