One image or a batch
Source images
JPEG, PNG, WebP
Static images. Up to 4 MiB per file, 12 MiB total and 4 million pixels per image. At most six source images.
Gaussian Image Blur
Apply a bounded number of Gaussian blur passes.
Open this toolGaussian blur softens details across the image rather than moving or removing them.
Choose the pass count and review the effect at a useful viewing size.
Inputs and controls
Blur passes
Tool inputs
Allowed range: 1 to 10
Download format
Tool inputs
PNG, preserves alpha, JPEG, flattens alpha, WebP, server support needed
Quality
Tool inputs
Allowed range: 1 to 100
How to use
- Choose a static JPEG, PNG or WebP source. Check the displayed upload limits before processing.
- Set Blur passes, Download format and Quality. Review the selected units and options before preparing the output.
- Select Prepare image. Inspect the resulting preview, dimensions and file size, then download the output you need.
Why use this tool
The bounded pass control makes the strength of the visual effect explicit.
Before relying on the result
Compare the finished picture with its source. Do not rely on a blur effect to guarantee that sensitive details cannot be inferred.
Questions
Is blur secure redaction?
No. Do not rely on a blur effect to guarantee that sensitive details cannot be inferred.
What should I check before using Gaussian Image Blur?
Prepare a supported source image and check Blur passes, Download format and Quality. Use the exact units shown beside the controls and replace any example values with your own inputs.
Source page last modified: 2026-10-04T18:22:34+00:00. This profile describes the tool; use its page to run it.
Markdown profile