Grayscale Converter - Convert Images to Black & White Online Free

🖤 Grayscale Converter

Convert color images to black & white with multiple methods

✨ 100% Free 🔒 Private 🎨 Multiple Methods ⚡ Live Preview
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Drop image here or click to select
Supports: PNG, JPG, JPEG, WebP, GIF, BMP
👁️ Live Preview
🎨 Original
Original
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🖤 Grayscale
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✅ Conversion Complete!
Result Preview
Dimensions
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Method
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File Size
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⬇️ Download Grayscale Image
💡 About Grayscale Methods
  • Luminosity: Uses human perception weights 0.21R + 0.72G + 0.07B - Most natural looking
  • Average: Simple average (R + G + B) / 3 - Equal treatment of all channels
  • Lightness: (max(R,G,B) + min(R,G,B)) / 2 - Preserves tonal range
  • Desaturation: Removes color saturation while preserving lightness
  • Single Channel: Uses only one color channel (R, G, or B)
🎨 Tips
  • Luminosity method works best for portraits and natural scenes
  • High contrast preset creates dramatic black & white images
  • Use single channel methods for creative effects
  • Adjust gamma for fine control over mid-tones