Title

Red Eye Remover

Drop or click to upload

Pupil Size 20px
Darken Amount 0.50

Click on red pupils to remove red eye.

Ctrl/Cmd + +/− to adjust pupil size.

Mouse Wheel: scroll over canvas to adjust pupil size.

Ctrl/Cmd + Scroll to zoom in/out.

Tap a red pupil to fix it.

Pinch to zoom in/out.

Drag to pan when zoomed in.

100%

Upload a photo to get started

Or try a sample:

Red Eye Sample
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Remove Red Eye Online – Free & Instant

Our free online red eye remover lets you fix red pupils in any photo in seconds — no software to install and no account required. Simply upload your image, hover your cursor over a red eye, and click to correct it. The tool processes your photo entirely in your browser, so your images are never uploaded to any server.

How to Remove Red Eye

1
Upload Your Photo

Drop a photo onto the panel, or click Upload Photo. Supports JPEG, PNG, WebP, HEIC & GIF.

2
Adjust & Click

Use the green circle to aim at a red pupil. Adjust Pupil Size and Darken Amount, then click to apply the fix.

3
Save Your Photo

Click Save Photo to download the corrected image at its full original resolution.

Tips for Best Results

  • Zoom in first – use Ctrl/Cmd + scroll or the zoom buttons to enlarge the eyes before clicking for greater precision.
  • Match the circle to the pupil – scroll over the canvas (without Ctrl) or drag the Pupil Size slider until the green circle matches the red area exactly.
  • Start with a lower Darken Amount – a value around 0.4–0.6 usually looks natural; increase it only if red is still visible.
  • Use Undo if needed – each click is saved to the undo stack so you can step back and try again.
  • Click multiple times – for very bright red eyes, two or three overlapping clicks with a lower darken amount produce a more natural result than one heavy correction.

Why Red Eye Happens

Red eye is caused by camera flash reflecting off the blood vessels at the back of the eye (the retina). It is most common when shooting in low-light conditions, because the pupils are fully dilated and allow more light to penetrate deep into the eye. Direct on-camera flash — especially on smartphones and compact cameras — is the primary cause. Using a separate flash unit, enabling your camera’s red-eye reduction mode (a pre-flash that constricts pupils), or simply taking photos in brighter environments all help prevent red eye in the first place.

Why Use This Red Eye Remover?

  • Full-resolution output – corrections are applied to the original image size, not a downscaled preview.
  • HEIC support – iPhone photos in HEIC/HEIF format are automatically converted before editing.
  • Feathered correction – the algorithm gradually fades the effect from the centre outward for a natural, seamless result.
  • Works entirely in your browser – your photos are never uploaded to any server.
  • Precise zoom – Ctrl/Cmd + scroll zooms toward the cursor so you can target small pupils accurately.
  • Free & unlimited – no signup, no watermarks, no limits.

Frequently Asked Questions

Yes, the tool is 100% free with no usage limits. You do not need to create an account or provide any payment information.
No. All processing happens entirely inside your browser using the HTML5 Canvas API. Your image is never sent to any server, so your privacy is fully protected.
Yes. HEIC and HEIF files (the default format on modern iPhones) are automatically converted to JPEG in your browser before editing. A loading indicator is shown during conversion.
Yes. The red eye correction is applied to an off-screen canvas at the original image dimensions, so the downloaded file has the same pixel width and height as the photo you uploaded.
Pupil Size controls the radius of the correction circle in pixels — set it to roughly match the size of the red pupil in the original image. Darken Amount controls how strongly the red channel is suppressed and the overall pixel darkened; 0.5 is a good starting point for most photos.
Yes. Click the Undo Last button to reverse the most recent correction. Each click on the canvas is saved as a separate undo step, so you can step back as many times as needed.
The algorithm is optimised for the classic red-eye effect produced by camera flash. It reduces the red channel and applies a darkening pass across the entire correction circle, so it can also help with orange or pinkish tints, though results may vary for other eye-color artifacts.