Add comprehensive feature roadmap
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ROADMAP.md
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ROADMAP.md
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# PNGer Feature Roadmap
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## Current Features ✅
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- Basic image upload (file picker)
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- Width/height resizing
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- Aspect ratio control (inside/cover)
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- Crop positioning (9 positions)
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- Format conversion (PNG, WebP, JPEG)
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- Quality adjustment (10-100)
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- Direct download (no server storage)
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- Docker deployment
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---
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## Phase 1: Enhanced User Experience (Priority: HIGH)
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### 1.1 Live Preview 🎯 **TOP PRIORITY**
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**Why**: Immediate visual feedback dramatically improves UX
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**Effort**: Medium | **Impact**: High
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- [ ] Real-time preview of transformations before download
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- [ ] Side-by-side comparison (original vs transformed)
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- [ ] Show file size reduction/increase
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- [ ] Display actual dimensions of output
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- [ ] Preview updates on parameter change (debounced)
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**Technical approach:**
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- Client-side preview using Canvas API for instant feedback
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- Optional: Server preview endpoint for accurate Sharp rendering
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- Show estimated vs actual file size
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### 1.2 Drag & Drop Interface
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**Why**: More intuitive than file picker
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**Effort**: Low | **Impact**: Medium
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- [ ] Drag & drop zone for image upload
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- [ ] Visual feedback on drag over
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- [ ] Support multiple files (batch processing)
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- [ ] Show thumbnail of uploaded image
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### 1.3 Batch Processing
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**Why**: Process multiple images at once
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**Effort**: Medium | **Impact**: High
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- [ ] Upload multiple images
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- [ ] Apply same transformations to all
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- [ ] Download as ZIP file
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- [ ] Progress indicator for batch operations
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- [ ] Individual vs global settings per image
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---
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## Phase 2: Advanced Image Operations (Priority: MEDIUM-HIGH)
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### 2.1 Smart Presets
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**Why**: Common use cases made easy
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**Effort**: Low | **Impact**: High
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- [ ] **Web Thumbnail** (300x300, WebP, 75% quality)
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- [ ] **Social Media** (1200x630 for OG images)
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- [ ] **Profile Picture** (square crop, various sizes)
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- [ ] **Email Friendly** (max 1MB, optimized)
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- [ ] **Retina Display** (@2x, @3x multipliers)
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- [ ] **Icon Set** (16, 32, 64, 128, 256px)
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- [ ] Custom preset saving
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### 2.2 Image Optimization
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**Why**: Reduce file size without quality loss
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**Effort**: Low | **Impact**: High
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- [ ] **Auto-optimize** button (best compression/quality ratio)
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- [ ] Lossless PNG optimization
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- [ ] Strip EXIF metadata (privacy + size)
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- [ ] Progressive JPEG encoding
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- [ ] Show compression statistics
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### 2.3 Additional Transformations
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**Why**: More creative control
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**Effort**: Medium | **Impact**: Medium
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- [ ] Rotation (90°, 180°, 270°, custom)
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- [ ] Flip (horizontal/vertical)
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- [ ] Grayscale conversion
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- [ ] Blur effect (with intensity)
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- [ ] Sharpen filter
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- [ ] Brightness/contrast adjustment
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- [ ] Border/padding addition
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---
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## Phase 3: Utilitarian Power Features (Priority: MEDIUM)
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### 3.1 Image Analysis
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**Why**: Understand your images
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**Effort**: Low | **Impact**: Medium
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- [ ] Display image metadata (dimensions, format, color space)
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- [ ] File size analysis (before/after)
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- [ ] Color palette extraction
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- [ ] Dominant color detection
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- [ ] Transparency detection
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- [ ] Aspect ratio calculator
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### 3.2 Custom Crop Tool
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**Why**: Precise control over cropping
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**Effort**: High | **Impact**: Medium
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- [ ] Visual crop selector (drag handles)
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- [ ] Aspect ratio lock
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- [ ] Freeform cropping
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- [ ] Rule of thirds grid overlay
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- [ ] Zoom for precision
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### 3.3 Watermarking
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**Why**: Brand/protect images
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**Effort**: Medium | **Impact**: Medium
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- [ ] Text watermark with custom font
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- [ ] Image watermark overlay
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- [ ] Position control (9 positions + custom)
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- [ ] Opacity adjustment
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- [ ] Repeat pattern option
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### 3.4 Image Comparison Tool
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**Why**: A/B test different settings
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**Effort**: Medium | **Impact**: Low-Medium
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- [ ] Compare 2-4 versions side-by-side
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- [ ] Slider to reveal differences
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- [ ] Quality vs file size comparison
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- [ ] Export comparison settings
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---
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## Phase 4: Workflow & Automation (Priority: LOW-MEDIUM)
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### 4.1 API Access
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**Why**: Integrate with other tools
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**Effort**: Low | **Impact**: Medium
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- [ ] Generate API keys in UI
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- [ ] Rate limiting per key
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- [ ] Usage statistics dashboard
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- [ ] Webhook support for async processing
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- [ ] OpenAPI/Swagger documentation
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### 4.2 Templates & Workflows
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**Why**: Reusable transformation pipelines
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**Effort**: Medium | **Impact**: Medium
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- [ ] Save transformation pipelines
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- [ ] Chain multiple operations
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- [ ] Share templates via URL
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- [ ] Import/export templates (JSON)
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- [ ] Community template gallery
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### 4.3 History & Favorites
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**Why**: Quick access to common tasks
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**Effort**: Low | **Impact**: Low
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- [ ] Recent transformations (local storage)
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- [ ] Favorite presets
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- [ ] Quick re-apply last settings
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- [ ] Clear history button
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---
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## Phase 5: Extended Format Support (Priority: LOW)
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### 5.1 More Input Formats
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**Effort**: Low-Medium | **Impact**: Medium
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- [ ] AVIF support (next-gen format)
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- [ ] TIFF support
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- [ ] SVG to raster conversion
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- [ ] ICO (favicon) generation
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- [ ] PDF to image (first page)
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- [ ] GIF frame extraction
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### 5.2 Advanced Output Options
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**Effort**: Medium | **Impact**: Low
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- [ ] Multi-size export (responsive images)
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- [ ] Generate `<picture>` tag HTML
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- [ ] Create image sprites
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- [ ] Generate CSS for backgrounds
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---
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## Phase 6: Enterprise Features (Priority: LOW)
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### 6.1 User Accounts (Optional)
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**Why**: For managed deployments
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**Effort**: High | **Impact**: Situational
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- [ ] User authentication
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- [ ] Per-user quotas
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- [ ] Saved presets sync
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- [ ] Usage analytics
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- [ ] Team collaboration
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### 6.2 Cloud Storage Integration
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**Why**: Direct save to storage
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**Effort**: High | **Impact**: Low-Medium
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- [ ] S3/MinIO upload
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- [ ] Cloudflare Images integration
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- [ ] Google Drive export
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- [ ] Dropbox integration
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---
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## Quick Wins (Low Effort, High Impact)
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### Immediate Improvements
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1. ✅ **Live Preview** - Phase 1.1 (start here!)
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2. ✅ **Smart Presets** - Phase 2.1
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3. ✅ **Drag & Drop** - Phase 1.2
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4. ✅ **Auto-optimize** - Phase 2.2
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5. ✅ **Image Analysis** - Phase 3.1
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### UI/UX Polish
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- [ ] Dark mode support
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- [ ] Keyboard shortcuts (Ctrl+V paste, Enter to process)
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- [ ] Copy image to clipboard
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- [ ] Undo/redo support
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- [ ] Mobile-responsive design improvements
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- [ ] Loading skeletons instead of spinners
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- [ ] Toast notifications for actions
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- [ ] Image format auto-detection suggestions
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---
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## Technical Debt & Infrastructure
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### Code Quality
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- [ ] Add unit tests (backend)
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- [ ] Add E2E tests (Playwright)
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- [ ] TypeScript strict mode
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- [ ] ESLint + Prettier configuration
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- [ ] CI/CD pipeline (GitHub Actions or Gitea Actions)
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- [ ] Code coverage reporting
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### Performance
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- [ ] Image processing queue (for heavy operations)
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- [ ] Redis caching for repeated transforms
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- [ ] CDN integration
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- [ ] WebP/AVIF auto-detection based on browser support
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- [ ] Lazy loading for UI components
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- [ ] Service worker for offline support
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### Security
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- [ ] Rate limiting (prevent abuse)
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- [ ] File type validation (magic bytes check)
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- [ ] Max file size enforcement (configurable)
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- [ ] CORS configuration
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- [ ] CSP headers
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- [ ] Input sanitization audit
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### Monitoring
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- [ ] Prometheus metrics endpoint
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- [ ] Error tracking (Sentry integration)
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- [ ] Performance monitoring
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- [ ] Usage analytics (privacy-focused)
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---
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## Suggested Implementation Order
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**Sprint 1 (Week 1-2): MVP Enhancements**
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1. Live Preview (Phase 1.1) ⭐
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2. Drag & Drop (Phase 1.2)
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3. Image Analysis (Phase 3.1)
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4. Smart Presets (Phase 2.1)
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**Sprint 2 (Week 3-4): Power User Features**
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5. Batch Processing (Phase 1.3)
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6. Image Optimization (Phase 2.2)
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7. Additional Transformations (Phase 2.3)
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8. Keyboard shortcuts
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**Sprint 3 (Week 5-6): Polish & Advanced**
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9. Custom Crop Tool (Phase 3.2)
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10. Watermarking (Phase 3.3)
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11. API Access (Phase 4.1)
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12. Testing & bug fixes
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---
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## Community Ideas
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Have suggestions? Open an issue on the repository:
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- Feature requests
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- Bug reports
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- Use case discussions
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- Performance improvements
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**Maintainer**: jason
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**Repository**: https://git.alwisp.com/jason/pnger
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**Last Updated**: 2026-03-08
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