Free Blur Image Tool — Add Gaussian Blur to Photos Online
Soften a photo or create a background blur with an adjustable strength slider. Processed entirely in your browser — no upload, no signup.
Runs in your browser — your files are never uploaded.
Your result will appear here.
Using Blur Effectively
A light blur (1–3 px) softens skin and noise; a strong blur (10–20 px) makes an ideal backdrop behind text overlays. The preview updates as you drag the slider.
This tool applies the blur to the whole image. Blurring is not a safe way to hide sensitive information such as licence plates or passwords — use solid shapes to redact instead.
Frequently Asked Questions
The value is the blur radius in pixels. Larger images need a larger value for the same look.
Not in this tool — it blurs the entire image.
Yes. A fallback blur is used where the browser lacks canvas filters.
No.
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