Polarr is a lightweight, professional photo editor with a small footprint, yet offering advanced features.

Filters

• 12 hand-crafted quality presets as base filters for adjustments
  
• See the parameters used in filters to make more improvements
  
• Create custom filters based on your editing history
  

Performance

• At 10MB, Polarr is the smallest and most efficient photo editor for OSX.
  
• Exceptional memory/CPU management and low power consumption using Webkit.
  
• Support JPEG, and most RAW images upto 42MP.
  
• Support transparent PNG and exports transparent PNG
  

Design

• Drop images directly into the app from other apps
  
• Designed for mouse, keyboard and touch
  
• Proprietary control slider for speed and precision
  
• Interactive in-app guide to photo editing
  
• Expandable and collapsible workspace
  
• Responsive window size to fit your screen
  

Adjustments

• Color: Temperature, Tint, Contrast, Saturation, Vibrance
  
• Light: Exposure, Highlights and Shadows
  
• Detail: Clarity, Sharpen, Denoise (color and luminance), Diffuse and Dehaze
  
• Optics: Distortions, Vignette, Fringing
  
• Eight channel HSL adjustments
  
• Three channel curve adjustments
  
• Highlights/shadows toning
  
• Filter blending and mixing
  
• Highlights/shadows toning tools
  
• Grain simulation
  

Local Adjustments

• Multiple circular and gradient local adjustments
  
• Flexible 4 point controls to position adjustments and feathering
  
• Adjusting basic color, highlights/shadows, clarity in local adjustments
  

Cropping and Tilting

• Precise tilting with automatic zooming to fill the frame
  
• Horizontal and verticle mirroring and rotations
  
• 10 default crop ratios with custom cropping controls
  

Import and Export

• Import multiple JPEG, PNG and most RAW image formats
  
• Export photos in batch with custom JPEG quality and size
  
• Add and save custom watermark during export
  
• Custom filters can also be imported and exported
  

History Management

• Infinite undo and redo on your photos
  
• Easy navigations to jump to any point in previous edits
  
• Persist editing histories across different editing sessions
  

Version 1.4.0:

• Fixed viewport stretching issue for iMac 5K
  
• Fixed watermark rotation issue
  
• Improved app rendering frame rate
  
• Added video tutorials for Chinese translations
  
• Use .jpg as default export file type now