# Documentation Index

**Last Updated:** October 22, 2025

This document provides an overview of all project documentation and their purposes.

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## 📚 Core Documentation

### **PROJECT_ROADMAP.md** 🎯
**Purpose:** High-level project vision, roadmap, and strategic planning  
**Audience:** Project leads, stakeholders  
**Contains:**
- Vision and goals
- Current status (8 active tools)
- Completed features (Markdown Editor, SEO, tool consolidation)
- Future phases (Diagram Tool, PRO tier, monetization)
- Success metrics and growth strategy

**Status:** ✅ Updated (Oct 22, 2025)

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### **TODO.md** ✅
**Purpose:** Detailed task list with checkboxes for tracking progress  
**Audience:** Developers, project managers  
**Contains:**
- Phase 1: Foundation & Monetization (✅ Mostly complete)
- Phase 2: Content Expansion (✅ Markdown Editor done)
- Phase 3: Monetization Backend (Planned)
- Quick wins and metrics to track

**Status:** ✅ Updated (Oct 22, 2025)

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## 🛠️ Technical Guides

### **EDITOR_TOOL_GUIDE.md** 📖
**Purpose:** Comprehensive guide for building new editor tools  
**Audience:** Developers  
**Contains:**
- Consistent UX patterns
- Input methods (Create/URL/Paste/Open)
- Data loss prevention
- Export patterns
- Code examples

**Status:** ✅ Active reference

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### **EDITOR_CHECKLIST.md** ☑️
**Purpose:** Quality checklist for new tools  
**Audience:** Developers, QA  
**Contains:**
- Feature completeness checklist
- UX consistency checks
- Testing requirements
- Documentation requirements

**Status:** ✅ Active reference

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### **FEATURE_TOGGLE_GUIDE.md** 🎛️
**Purpose:** Guide for implementing feature toggles  
**Audience:** Developers  
**Contains:**
- Feature flag patterns
- PRO tier features
- A/B testing setup
- Configuration management

**Status:** ✅ Active reference

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## 💰 Monetization Documentation

### **ADSENSE_REVISED_STRATEGY.md** 📊
**Purpose:** Current AdSense implementation strategy  
**Audience:** Project leads, developers  
**Contains:**
- Clean homepage strategy (no ads)
- Tool pages monetization (3 desktop ads, 1 mobile)
- Revenue projections
- Implementation details
- **This is the ACTIVE strategy**

**Status:** ✅ Current strategy

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### **ADSENSE_SETUP_GUIDE.md** 🔧
**Purpose:** Step-by-step AdSense setup instructions  
**Audience:** Developers, admins  
**Contains:**
- Account setup steps
- Ad unit creation
- Code implementation
- Testing procedures

**Status:** ✅ Active guide

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### **ADSENSE_STRATEGY.md** 📝
**Purpose:** Original AdSense strategy (with homepage ads)  
**Audience:** Reference only  
**Contains:**
- Alternative strategy with homepage ads
- Comparison with revised strategy
- **NOT the current strategy**

**Status:** ⚠️ Reference only (superseded by REVISED)

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### **BACKEND_REQUIREMENTS.md** 🖥️
**Purpose:** Backend requirements for PRO tier  
**Audience:** Backend developers  
**Contains:**
- Authentication system
- Payment integration
- CORS proxy service
- Database schema
- API endpoints

**Status:** 📅 Future reference (Phase 3)

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## 🔍 SEO Documentation

### **SEO_IMPROVEMENT_PLAN.md** 🚀
**Purpose:** Comprehensive SEO strategy and implementation guide  
**Audience:** Developers, marketers  
**Contains:**
- Priority 1: Critical improvements (✅ DONE)
  - Sitemap updates
  - FAQ schema
  - Breadcrumb schema
  - Internal linking
- Priority 2-6: Ongoing improvements
- Long-term strategy
- Expected results

**Status:** ✅ Partially complete (Priority 1 done)

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## 📖 User Documentation

### **README.md** 📄
**Purpose:** Project overview and setup instructions  
**Audience:** Developers, contributors  
**Contains:**
- Project description
- Installation instructions
- Development setup
- Deployment guide

**Status:** ✅ Active

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## 🗑️ Removed Documentation

The following documents were **removed** as they were redundant or completed:

- ❌ `MARKDOWN_EDITOR_TASKS.md` - Merged into TODO.md
- ❌ `MARKDOWN_EDITOR_PLAN.md` - Merged into PROJECT_ROADMAP.md
- ❌ `MARKDOWN_EDITOR_ANALYSIS.md` - No longer needed (completed)
- ❌ `NEXT_TASK_RECOMMENDATION.md` - Outdated (Markdown Editor done)
- ❌ `SEO_FIX_GUIDE.md` - Merged into SEO_IMPROVEMENT_PLAN.md
- ❌ `SEO_QUICK_WINS.md` - Merged into SEO_IMPROVEMENT_PLAN.md
- ❌ `ADVANCED_URL_FETCH_FIXES.md` - Completed, no longer needed
- ❌ `CORS_AND_IMPROVEMENTS.md` - Completed, no longer needed

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## 🎯 Quick Reference

### **What to Read First:**
1. **PROJECT_ROADMAP.md** - Understand the vision
2. **TODO.md** - See what's next
3. **EDITOR_TOOL_GUIDE.md** - Learn the patterns

### **Building a New Tool:**
1. Read **EDITOR_TOOL_GUIDE.md**
2. Follow **EDITOR_CHECKLIST.md**
3. Update **TODO.md** when done

### **Implementing AdSense:**
1. Read **ADSENSE_REVISED_STRATEGY.md** (current strategy)
2. Follow **ADSENSE_SETUP_GUIDE.md**
3. Ignore **ADSENSE_STRATEGY.md** (old strategy)

### **SEO Improvements:**
1. Check **SEO_IMPROVEMENT_PLAN.md**
2. Priority 1 is ✅ DONE
3. Work on Priority 2-6 as needed

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## 📊 Current Project Status

### ✅ Completed (October 22, 2025):
- **8 Active Tools** (Markdown Editor, Object Editor, Table Editor, Invoice Editor, URL/Base64/Beautifier/Diff/Text Length)
- **Tool Consolidation** (Merged JSON, Serialize, CSV-JSON into main editors)
- **SEO Optimization** (FAQ schema, breadcrumbs, internal linking, sitemap)
- **Related Tools** (Recommendations on each tool page)
- **Custom 404 Page** (With tool suggestions)
- **Ad Infrastructure** (Placeholder ads ready)

### ⏳ In Progress:
- **AdSense Approval** (Awaiting Google review)

### 📅 Next Up:
- **Diagram Tool** (After AdSense approval)
- **PRO Tier** (Backend, auth, payment)
- **More Small Tools** (Hash, UUID, Timestamp, Color, etc.)

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## 🔄 Document Maintenance

### When to Update:
- **PROJECT_ROADMAP.md**: When completing major phases or changing strategy
- **TODO.md**: Mark tasks as done, add new tasks
- **SEO_IMPROVEMENT_PLAN.md**: After implementing SEO improvements
- **ADSENSE_REVISED_STRATEGY.md**: When changing ad strategy or getting new data

### Archive Policy:
- Completed task-specific docs → Delete
- Outdated strategies → Keep for reference, mark as "Reference Only"
- Active guides → Keep updated

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**Single Source of Truth:** PROJECT_ROADMAP.md + TODO.md  
**Everything else:** Supporting documentation