What is Teeth Whitener?

A free teeth whitening tool that brightens teeth in photos while keeping results natural. Upload a portrait, brush over the teeth area, and adjust whitening intensity. The tool selectively lightens yellow tones without affecting skin or lips.

The brush lets you paint over just the teeth so the rest of the photo stays untouched. Internally, the tool desaturates yellow tones and lifts brightness inside the painted mask, so lips and gums keep their natural colour. Intensity runs from 0 to 100%, with anything above 80% looking obviously edited — stick to the 40 to 65 range for results that pass on social media.

How to use

1. Upload a portrait photo showing teeth.
2. Paint over the teeth area with the brush tool — adjust brush size as needed.
3. Slide the whitening intensity to get a natural look, then download the result.

When to use

• Cleaning up a wedding or graduation portrait before printing or sharing.
• Touching up a LinkedIn or Tinder headshot after a coffee-stained day.
• Brightening teeth in product photos for cosmetic dentistry or orthodontic clinics.

Result

You have a group photo where your smile looks slightly yellow from coffee stains. Upload it, brush over your teeth, set intensity to 60%, and download a natural-looking result with visibly brighter teeth.

FAQ

Will the result look fake or obviously edited?

At intensity 40 to 60% it's close to undetectable — that's the same range professional retouchers use. Above 80% teeth start to look unnaturally white and matte. The before/after toggle helps you check before downloading.

What if I accidentally paint over the lips or gums?

Use the mask preview to see exactly what's selected and erase mistakes with the eraser. The whitening filter targets yellow saturation specifically, so a small overlap onto pink lips won't change them much — but clean edges look better.

Why does my photo upload but nothing happens when I brush?

The brush size may be too small for the image resolution. For a 4000 px wide photo, set the brush to 40 to 60 px. Also zoom in first — painting works on the visible canvas pixels, so zooming makes the brush more accurate.

Does the tool work on group photos with multiple smiles?

Yes. Paint over each person's teeth separately. The mask supports any shape, so you can target multiple non-contiguous regions in a single image and apply the same whitening intensity to all of them.

What image formats and sizes work best?

JPEG and PNG up to 20 MB. Choose your download format: PNG keeps the cleanest edges around the painted area, JPEG at 90% quality cuts the file size roughly in half for sharing on social media. WebP uploads are converted on the way in. Aim for source photos at least 1200 px wide so the teeth area has enough pixel detail.

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