What is Red-Eye Remover?

Red-Eye Remover automatically detects and corrects red-eye caused by camera flash in your photos. Click on red eyes or use automatic detection to fix them. The tool replaces the red glare with natural eye color and leaves the rest of your photo as-is.

The tool works on PNG, JPEG, and WebP images up to 20 MB. Auto-detect scans the photo for the characteristic bright red dot inside a darker iris using a tolerance and sensitivity threshold you control. Switch to Pet eye mode for cats, dogs, and other animals where the flash returns as bright white, yellow, or green from the tapetum instead of red. The manual brush lets you click directly on a pupil when the algorithm misses small eyes or you want pixel-level control; a circular preview shows exactly which area you are about to fix.

How to use

1. Upload a photo that has red-eye from camera flash.
2. Click directly on each red eye to fix it, or try automatic detection to find and fix all red eyes at once.
3. Download the corrected photo with natural-looking eyes.

When to use

• Fixing family portraits, group photos, or wedding shots where flash caused red pupils.
• Cleaning up old digital photos from compact cameras before printing or sharing.
• Touching up product photos of people or pets that need to look natural.

Result

Your family holiday photo has everyone looking like vampires thanks to the flash. Upload the image, click on each red eye (or hit auto-detect), and the tool replaces the red glare with natural dark pupils — save the fixed photo for your album.

FAQ

Why does the flash cause red eyes in the first place?

Light from the flash bounces off the blood vessels at the back of the retina and returns to the lens before the pupil has time to contract. The smaller the angle between flash and lens (compact cameras, phones), the worse the effect.

Can the tool fix pet-eye, where the glare is green or yellow?

Yes, switch to the Pet eye mode. Standard red-eye looks for a saturated red dot inside the pupil, which animals rarely produce. Pet eye looks for the bright, washed-out glare from the tapetum reflector behind the retina, whether it comes back green, yellow, or white. Auto-detect and the manual brush both work in either mode.

What does the tolerance slider actually control?

Tolerance sets how saturated a pixel must be to count as red. Low tolerance only catches deep reds; high tolerance also catches pink and orange pixels. If the tool starts darkening lipstick or red clothing, lower it.

Will the fix damage the rest of the eye?

No. The tool only changes pixels that match the red threshold inside the brush radius. The iris colour, eyelashes, and skin around the eye stay untouched. Every click or auto-detect is saved as a separate step, so you can press Undo as many times as you like to walk back through the corrections one by one.

Why does auto-detect sometimes miss small eyes in group photos?

Detection works by looking for a red region above a minimum size. In a group shot where each face is only 30–40 pixels wide, the red dot may be too small to register. Raise sensitivity or switch to manual.

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