---
title: "Blur Image Free – Selective Photo Blurring — Nexvert"
description: "Apply adjustable Gaussian blur to photos and screenshots for privacy or artistic focus. Free, instant, and processed locally without any upload."
url: https://nexvert.online/blur-image/
---

# Blur Image Free

Apply adjustable Gaussian blur to photos and screenshots for privacy or artistic focus. Free, instant, and processed locally without any upload.

## What is Blur Image?

Blur entire photos for background wallpapers or obscure private details before sharing. The browser computes multi-radius 2D box and Gaussian convolutions locally with instantaneous rendering.

## How to use Blur Image

1. **Add your file or input** — Choose a supported file, drag it onto the upload area, or type/paste the data this tool works with.
2. **Adjust the options** — Pick the output format, quality, size or other settings the tool offers. Defaults work well for most files.
3. **Process and download** — Run the tool and save the result. Processing happens in your browser, so nothing is uploaded to a server.

## Frequently asked questions

### How does Gaussian blur work mathematically?

Gaussian blur applies a normal distribution bell curve convolution kernel across neighboring pixels, creating smooth, organic transitions without harsh edges.

### Can blurred text or faces be unblurred by someone else?

No. Gaussian blur permanently discards high-frequency pixel details by blending them irreversibly into neighboring colors. Once saved, the original data cannot be reconstructed.

### What is the maximum blur radius supported?

You can adjust blur intensity from a subtle 1px softening filter all the way to heavy 50px abstract color washes.

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Source: https://nexvert.online/blur-image/
HTML version: https://nexvert.online/blur-image/