Photo Denoise
Grainy photos happen — high ISO, low light, aggressive compression. This tool smooths the noise with classic filters (median or mean) and lets you dial the strength so textures survive.
Like every Pixelate tool it runs in your browser, which means no queue, no upload, and no surprise limits.
Filter
Radius
Runs entirely in your browser — no uploads, no cloud AI.
Drop an image, paste it, or click to browse
Your image is processed entirely in this browser. Nothing is ever uploaded.
How It Works
1. Upload the grainy photo.
2. Pick the filter: median removes salt-and-pepper specks, mean softens everything evenly. Choose a 3 × 3 or 5 × 5 radius and a strength percentage.
3. Download the PNG, or flip to the original to compare.
Keep Some Grain
Fully smoothed photos look plastic. Start with median + 3 × 3 at around 70% strength, then back off until the grain is acceptable but the texture — skin, fabric, foliage — still reads.
Frequently Asked Questions
How do I fix grainy photos for free?
Upload the photo here, pick a filter and strength, and download the cleaned PNG. Free, no account, no upload.
Median or mean filter — which should I use?
Median for speckled noise (like sensor grain or JPG artifacts), mean for even softness. Try median first at 3 × 3.
Will denoising remove detail?
Yes, if you push the strength too far. That is what the strength slider is for — back it off until important texture survives.
Does this use AI?
No — classic signal-processing filters, deterministic and free. AI denoising is a possible future upgrade; this tool stays honest about what it is.
Is my photo uploaded anywhere?
No. Processing happens entirely in your browser.