AI Image Denoiser

Photos shot in low light or at high ISO come out grainy. Traditional denoising blurs the noise but also smears important detail. Our AI denoiser is trained to distinguish noise from texture — it removes the grain while keeping skin texture, fabric weave, hair strands intact. Free for the first try.

Why high-ISO photos look noisy

Camera sensors collect light. In low light there's not much to collect, so the camera amplifies the signal — which also amplifies the random electronic noise present in every digital sensor. Higher ISO settings mean more amplification and more visible grain. Phone cameras at night routinely shoot at ISO 3200+, where noise is severe.

Modern phones do automatic noise reduction in their image-processing pipeline, but the result is often heavy smoothing that loses detail (the "watercolour" look you get from aggressive phone night-mode). Manually-controlled denoising — done at the right strength after the fact — produces a cleaner result with detail preserved.

How to denoise a photo

1. Drop your photo. Best results on photos shot at high ISO (1600+) where noise is the dominant problem.
2. Wait 5–10 seconds.
3. Compare before/after. The tool shows a side-by-side at 100% zoom so you can see noise removed and detail preserved.
4. Download the JPG. Quality 90 by default. EXIF preserved.

What the AI denoiser does well

Excellent: low-light phone photos taken indoors at night. High-ISO DSLR shots. Old digital photos from 2008-era cameras at high ISO. Webcam stills from poor lighting.

Decent: photos with mixed noise + slight blur (combine with our Sharpener for best result). Heavily compressed JPGs where noise + JPEG artifacts are both present.

Tricky: photos where the "noise" is actually intended texture (film grain effect, intentional grit). The AI may smooth those out unwantedly. For those, use traditional denoising with manual strength control.

Where denoising fits in the workflow

If your photo also needs general enhancement (colour, exposure, sharpness) in addition to denoising, our AI Photo Enhancer includes denoising as one of its passes. Use the Denoiser specifically when noise is the only problem to solve.

For extremely noisy photos that are also low-resolution, denoise FIRST then upscale with the AI Upscaler. Upscaling noise just makes it bigger noise. Denoising first leaves the upscaler with cleaner input to work from.