Think once. Build right.
An AI-powered thinking tool that helps you break down goals, surface hidden assumptions, and create clarity before you create chaos.
🔗 Live Demo | 📖 Documentation | 💬 Community
Seven thinking modules, each tackling a different challenge:
- ⬡ Prerequisite Mapper - Break any goal into what must be true first
- ◇ Assumption Register - Surface hidden beliefs you didn't know you were making
- ⇄ Handover Machine - Extract tacit knowledge before it walks out the door
- ◎ Constraint Ratchet - Creativity under pressure with timed challenges
- ✧ Collision Engine - Spark ideas by colliding problems with random domains
- ↻ Fragment Resurrector - Revive abandoned drafts with AI suggestions
- ⊘ Inverse Brief - Define by exclusion, map the possibility space
Just visit clarity.berta.one and start using it immediately. No signup required.
Simply open the HTML file in any modern browser:
# Clone the repository
git clone https://github.com/luigipascal/Clarity.git
cd Clarity
# Open in your browser
open clarity-engine-v2.html # macOS
xdg-open clarity-engine-v2.html # Linux
start clarity-engine-v2.html # Windows (PowerShell)Or drag clarity-engine-v2.html into your browser window.
Go to Settings (⚙️) and choose your AI provider:
- Best for: Complex reasoning, nuanced analysis
- Cost: ~$0.001-0.003 per query
- API Key: Get from console.anthropic.com
- Free tier: $5 credit to start
- Best for: Speed, general-purpose
- Cost: ~$0.015 per query
- API Key: Get from platform.openai.com
- Best for: Long-context, affordability
- Cost: ~$0.00005-0.0001 per query
- API Key: Get from ai.google.dev
Privacy: Your API keys are stored only in your browser's local storage. We never see them or log them anywhere.
- Choose a thinking module from the left sidebar
- Enter your goal or problem in the main input
- Click AI buttons to get Claude's analysis:
- "AI Decompose" - Break into prerequisites
- "AI Surface Hidden" - Find blind spot assumptions
- "AI Expand" - Generate options
- Export as Markdown, JSON, or generate full Report
Goal: Launch our SaaS product by Q2 2024
↓ Click "AI Decompose"
Prerequisites:
- Validate 50+ customers would pay
- Build MVP feature set
- Set up billing/payment processing
- Create marketing site
- Recruit founding customers
- Guided Tour - Learn all modules with examples
- Export Reports - Generate comprehensive strategic briefs
- Cloud Sync - Save projects (coming soon)
- AI Summary - Auto-generate executive summaries (coming soon)
- Frontend: Single-file vanilla JavaScript app (~1700 lines)
- Storage: Browser localStorage (no backend required)
- AI: Direct calls to OpenAI, Anthropic, or Google APIs
- Deployment: Works offline, entirely static (can serve from CDN)
No backend needed. Pure client-side execution means:
- ✅ Maximum privacy (your data stays local)
- ✅ Zero server costs
- ✅ Works completely offline
- ✅ Easy self-hosting
- No account required - Use immediately without signup
- No tracking - No analytics, no cookies, no telemetry
- Local-first - All data stored in browser's localStorage
- API-direct - AI calls go directly to the provider, never through our servers
- Open source - Inspect the code, fork it, host it yourself
The tool itself is completely free. You only pay for AI API usage:
| Provider | Cost | Free Tier |
|---|---|---|
| Anthropic Claude | ~$0.001-0.003/query | $5 credit |
| OpenAI GPT-4o | ~$0.015/query | $5 credit |
| Google Gemini | ~$0.0001/query | Free tier available |
Typical usage: A full thinking session (5-10 AI calls) costs $0.01-0.05.
We welcome contributions! See CONTRIBUTING.md for guidelines.
# Clone
git clone https://github.com/luigipascal/Clarity.git
# Make changes to clarity-engine-v2.html
# Test in browser
# Submit PR with description- New thinking modules
- Improved prompt engineering
- Export formats (PDF, DOCX)
- Keyboard shortcuts
- Mobile UI improvements
- Additional AI providers
- Translations
MIT License - feel free to use for personal or commercial projects.
See LICENSE for details.
If Clarity helps you think better:
- ⭐ Star this repo - Shows support on GitHub
- 💬 Share feedback - Open an issue
- ☕ Buy me a coffee
- 💖 Become a GitHub Sponsor
- Website: berta.one
- Live App: clarity.berta.one
- X/Twitter: @berta_one
- Email: hello@berta.one
Made by Rondanini Publishing