Blur Background
Blur the background of a photo in your browser with AI while keeping the subject sharp.
Blur Background is a browser-based image tool on ImgToolsBase. Blur the background of a photo in your browser with AI while keeping the subject sharp. To use it, upload or drop your image and view the result directly in your browser — no signup and nothing to install.
How this tool works
What it does
Blur Background detects the subject with an in-browser AI model and blurs the background behind it.
Blur strength
One slider (0–100 px); the subject stays sharp.
The model
The AI model files download on first use from the model hub (Hugging Face) and are cached by your browser when possible; if the cache is cleared or blocked they may download again. The download size varies by browser and model package.
Privacy & metadata
In-browser only; nothing is uploaded. Browser canvas export strips EXIF, GPS, and most other source metadata.
Blur Background in your browser
Blur Background keeps your subject sharp and blurs the background of a photo in your browser using an in-browser AI model — nothing is uploaded. It detects the subject, then applies an adjustable blur to everything behind it for a portrait-style look.
Set the blur strength to control how soft the background becomes. The AI model files download on first use from the model hub (Hugging Face) and are cached by your browser when possible; if the cache is cleared or blocked they may download again. The download size varies by browser and model package.
Blur Background shows the output dimensions, the blur used, the AI model, and the file size in the result panel. Browser canvas export strips EXIF, GPS, and most other source metadata. Animated GIFs are processed as a single still frame; animation is not preserved.
How to use Blur Background
- Upload your photo into Blur Background — click, press Enter, or drag it in.
- On first use, wait while Blur Background downloads the AI model files (cached by your browser afterwards when possible).
- Set the blur strength in Blur Background.
- Click Process to detect the subject and blur the background, then download the PNG.
Why use Blur Background
Blur Background blurs the background locally; your photo is never uploaded.
A single slider controls how soft the background becomes while the subject stays sharp.
Blur Background states the model downloads on first use from the model hub (Hugging Face) and caches when possible.
For tricky edges, cut out the subject in the Background Eraser first.
Common uses for Blur Background
Add a soft, out-of-focus background to a portrait or selfie.
Blur a distracting background so the product stands out.
Make a tidy, blurred-background image for a profile photo.
Blur backgrounds from a phone, tablet, or computer browser with the photo staying local.
Frequently asked questions
Are my photos uploaded to a server by Blur Background?
No. Blur Background runs the AI segmentation and the blur in your browser; the photo is never uploaded. On first use, the AI model downloads once from the model hub (Hugging Face) and is then cached by your browser; your image is still processed locally and never uploaded.
Can Blur Background change the blur strength?
Yes. The blur strength slider (0–100 px) controls how soft the background becomes; the subject stays sharp.
Does Blur Background work offline after the model is cached?
Often, yes — after Blur Background downloads the model once, it is cached by your browser. If the cache is cleared or blocked, the files download again, so offline use is not guaranteed.
Why are the subject edges in Blur Background not perfect?
The AI segments the subject automatically; soft hair and fine edges can be imperfect. For hand cleanup, remove the background in the Background Eraser and place the subject on your own blurred image.
Related background tools
Tools that pair well with Blur Background.