Brilliance
Enhance your images by adjusting brilliance levels to make them brighter or darker
Drop your image here or
Supports JPEG, PNG, WEBP, GIF, HEIC
Upload an image to adjust brilliance
Free Online Brilliance Adjustment Tool
Enhance your photos by adjusting brilliance levels to make them brighter or darker. Our easy-to-use online tool provides precise control over image brightness, perfect for correcting exposure or creating artistic effects.
How to Use the Brilliance Tool
- Upload Your Image: Drag and drop your photo or click "Upload Photo" to select from your device
- Adjust Brilliance Level: Use the slider to control brilliance from -100 (darker) to +100 (brighter)
- Preview in Real-time: See your changes instantly as you adjust the brilliance level
- Compare Original: Toggle between original and adjusted versions using the "Show Original" button
- Download Result: Click "Save Photo" to download your enhanced image in original quality
Supported File Formats
- JPEG/JPG - Most common photo format with quality preservation
- PNG - High quality with transparency support and lossless 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 Processing
Real-time brilliance adjustment with immediate preview - no waiting 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 enhanced images in the same format and resolution as your original.
Common Use Cases
Photo Correction
Fix underexposed or overexposed photos by adjusting brilliance levels for perfect lighting.
Artistic Effects
Create dramatic lighting effects or enhance mood by making images brighter or darker.
Social Media
Enhance photos for Instagram, Facebook, or other platforms to make them more eye-catching.
Pro Tips
- Subtle Changes: Start with small adjustments (±20 to ±40) for natural-looking results
- Format Choice: Use PNG for graphics with text, JPEG for photos with gradients
- iPhone Photos: HEIC files are automatically converted to JPEG for compatibility
- Compare Easily: Use the toggle button to quickly compare before and after versions
Frequently Asked Questions
What's the difference between brilliance and brightness?
Brilliance adjustment affects the overall luminosity of an image by moving pixel values toward white (positive values) or black (negative values). This creates a more natural-looking brightness adjustment compared to simple brightness changes, preserving image contrast and detail better.
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 brilliance adjustment is applied locally on your device, ensuring complete privacy and security.
What brilliance level should I use?
The ideal brilliance level depends on your image and desired effect. For subtle corrections, try values between -30 to +30. For dramatic effects, you can use the full range of -100 to +100. Dark photos typically benefit from positive values (brighter), while overexposed photos need negative values (darker).
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. The brilliance adjustment preserves all image data while enhancing the luminosity.
Can I undo changes after applying them?
Yes! You can always reset the brilliance slider to 0 to return to the original image. You can also use the "Show Original" toggle button to compare your changes with the original at any time. The original image data is preserved throughout the editing process.
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.
Does this work on mobile devices?
Yes! The brilliance tool 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.