Greyscale Photo
Convert your images to grayscale with a simple toggle button
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Supports JPEG, PNG, WEBP, GIF, HEIC
Upload an image to convert to greyscale
Free Online Greyscale Image Converter
Convert your color photos to classic black and white images instantly with our easy-to-use online greyscale converter. Perfect for creating timeless artistic effects, professional portraits, or vintage-style photography.
How to Use the Greyscale Converter
- Upload Your Image: Drag and drop your photo or click "Upload Photo" to select from your device
- Toggle Greyscale: Click the "Toggle Greyscale" button to convert between color and black & white
- Preview Instantly: See the greyscale conversion immediately with one click
- Compare Original: Use the "Show Original" button to compare color and greyscale versions
- Download Result: Click "Save Photo" to download your greyscale image
Supported File Formats
- JPEG/JPG - Most common photo format with excellent greyscale conversion
- PNG - High quality with transparency support and lossless greyscale output
- WEBP - Modern web format with excellent compression and quality
- HEIC - iPhone photos (automatically converted to JPEG)
- GIF - Simple graphics (converted to PNG for better quality)
Key Features
Instant Conversion
Convert to greyscale instantly with one click - no waiting or processing time required.
Mobile Friendly
Works perfectly on smartphones, tablets, and desktop computers with responsive design.
Privacy Protected
Images are processed locally in your browser - nothing uploaded to servers.
Original Quality
Download greyscale images in the same format and resolution as your original.
Common Use Cases
Artistic Photography
Create timeless black and white photographs with dramatic contrast and mood.
Professional Portraits
Convert portraits to classic black and white for professional headshots and profiles.
Social Media
Create stunning monochrome posts for Instagram, Facebook, and other social platforms.
Pro Tips
- High Contrast: Images with strong contrast work best for greyscale conversion
- Quality Preservation: Use PNG format to maintain the highest quality in greyscale
- iPhone Photos: HEIC files are automatically converted to JPEG with greyscale applied
- Easy Comparison: Use the toggle button to quickly switch between color and greyscale
Frequently Asked Questions
Is my image data safe and secure?
Yes, absolutely! All image processing happens directly in your browser using JavaScript. Your images are never uploaded to our servers or stored anywhere. The greyscale conversion is applied locally on your device, ensuring complete privacy and security.
What greyscale conversion method is used?
We use the luminance formula for optimal greyscale conversion: 0.299 × Red + 0.587 × Green + 0.114 × Blue. This method considers how the human eye perceives different colors, resulting in natural-looking black and white images with proper contrast and detail preservation.
Will the output image quality be reduced?
The output image maintains the same resolution and format as your original image. For JPEG images, we use high quality settings (90% quality) to preserve image detail. PNG images maintain lossless quality. Only HEIC and GIF files are converted to more compatible formats.
Can I convert back from greyscale to color?
While you're editing, you can easily toggle back to the original color version using the "Toggle Greyscale" button. However, once you download a greyscale image, the color information is permanently removed and cannot be restored. Always keep a copy of your original color image.
Why do HEIC files take longer to process?
HEIC files (common on iPhones) need to be converted to JPEG format first since web browsers don't natively support HEIC. This conversion process takes a few extra seconds but ensures compatibility and allows you to work with iPhone photos seamlessly before applying greyscale.
Does this work on mobile devices?
Yes! The greyscale converter is fully responsive and works perfectly on smartphones and tablets. The interface automatically adapts to smaller screens, and you can easily upload photos directly from your device's camera or photo library.
What's the difference between greyscale and black & white?
Greyscale images contain shades of gray between pure black and pure white, preserving details and gradients from the original color image. True black & white images contain only pure black and white pixels. Our tool creates greyscale images, which provide more natural and detailed results for photographs.