Lighten Image
Lighten an image. Upload an image, adjust the brightness level, and download a brighter version.
Click to upload an image
Your file is processed entirely in your browser
Recommended Settings
Pro Tips
- •Higher brightness percentages produce a lighter result - 140% is a moderate starting point
- •Lightening can help recover visibility in underexposed or dark photos, though very bright settings will wash out highlights
- •This adjusts overall brightness uniformly - it won't recover detail lost in areas that are fully black
- •The whole file is processed locally in your browser - nothing is uploaded anywhere
Most Popular
Most users start with the default setting and fine-tune using the slider while previewing the result
When to Use This Tool
Use this tool to lighten an image for underexposed photo fixes.
Use this tool to lighten an image for mood & atmosphere editing.
Use this tool to lighten an image for photo correction.
How It Works
Read the uploaded image and decode it using the browser's native image support
Apply a CSS brightness filter to the canvas at the selected percentage
Draw the filtered result onto a new canvas
Encode the canvas as PNG, ready to preview and download
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by Browser native Canvas API for optimal performance on modern browsers.
Secure
No data collection, no tracking, no sign-up required.
Frequently Asked Questions
How much brighter will my image get?
The brightness slider directly scales pixel brightness - 150% means every pixel is rendered at one and a half times its original brightness.
Will this wash out my highlights?
Very high settings can push bright areas to pure white, losing detail there. Try a lower percentage if highlights start looking blown out.
Is my image uploaded to a server?
No. The entire conversion happens locally in your browser using the Canvas API. Your image never leaves your device.
What format is the output?
The result is downloaded as a PNG file, which preserves any transparency in the original image.
Can I darken an image instead?
Yes - use the separate Darken Image tool, which decreases brightness below 100% instead of increasing it.