Image Tool

在线模糊图片

免费在线模糊图片。用高斯或运动模糊柔化照片或复杂背景,下载前对比清晰与模糊效果。

Free to use No account required Stays on your device Nothing uploaded
1 (subtle) 20 (heavy)

Blur image online — what this tool does

Use this page to blur image files in the browser. Upload a photo, choose gaussian or motion blur, set the radius, and download a softened version. Processing runs in your browser, so nothing needs installing. The result includes a before/after preview so you can judge the effect against the clear original.

Blur image online free

Blur image online free means no account, no watermark, and no software install. Your image is processed locally in your browser and is not uploaded to ImgTask's server. Image files never leave your device. Size limits still apply (200 MB per image).

Blur image to clear image — what people mean

Searches for "blur image to clear image" or "blur image to clear image online" usually want the opposite of this tool: restoring a blurry photo into a sharp one. ImgTask does not unblur or AI-sharpen. What it does offer is the clear-to-blurred direction with a side-by-side preview, so you can start from a clear image, apply blur online, and compare the clear original with the blurred result before downloading.

Blur image background

Want to soften a busy background? Full-image blur will reduce background detail along with everything else in the frame. There is no selective mask, so the subject is blurred too. For product shots or screenshots where the whole scene should look softer, that is often enough. For true portrait-style background-only blur, you would need a tool with subject masking — this one does not provide that.

When to blur an image

  • Obscuring details. Soften faces, numbers, or text before sharing a screenshot or photo.
  • Softening a busy background. Reduce clutter across the whole frame when selective background blur is not required.
  • Motion effects. Add a directional streak for creative or presentation use.
  • Preparing public posts. Make fine detail less readable while keeping the overall composition.

Need a smaller or differently sized file afterward? Continue with Compress Image or Resize Image.

How to blur an image online

  1. 上传图片. 将一张或多张照片拖放到上传区域(每张最大 200 MB)。支持 JPEG、PNG、WEBP、HEIC 及其他格式。
  2. 选择模糊类型和半径. 高斯用于均匀柔和效果,运动用于方向性条纹。半径从 1(轻微)到 20(强烈)。
  3. 在线模糊图片. 点击模糊图片。处理在浏览器中运行 — 免费,无需账户。
  4. 对比清晰与模糊后下载. 使用前后预览对比清晰原图与模糊结果,按需调整,然后下载文件。

Gaussian vs motion blur

Topic Gaussian Motion
Look Even soft focus across the frame Directional streak suggesting movement
Best for Softening detail or a busy background Creative motion effects
Radius 1 subtle → 20 heavy 1 subtle → 20 heavy
Scope Full image Full image

Formats and limitations

Accepted uploads: JPEG, PNG, WEBP, GIF, BMP, TIFF, AVIF, HEIC. Max 200 MB.

Limitations: Blur applies to the full image — not a masked background only. Heavy radii remove more detail. This tool cannot turn a blurry photo into a clear one. HEIC inputs are processed and typically returned as JPEG.

Privacy: Your image is processed locally in your browser and is not uploaded to ImgTask's server. Image files never leave your device. No account is needed and results carry no watermark.

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Frequently Asked Questions

上传照片,选择高斯或运动模糊,设置半径,点击模糊图片,然后下载结果。无需账户。
是的。免费在线模糊图片,无需注册、无水印、无需安装软件。上传限制为每张 200 MB。
不能。此工具将清晰图片变模糊 — 柔化细节。无法将模糊照片恢复为清晰锐利的图片。
不能选择性处理。模糊应用于整张图片。没有区域蒙版或人像抠图来实现仅背景模糊。
高斯模糊均匀柔化整张图片。通常用于减少细节、柔化复杂背景或使文字和面部难以辨认。
运动模糊添加可暗示运动的方向性条纹。强度仍取决于您选择的模糊半径。
有。上传限制为每张 200 MB。
模糊在浏览器中运行。图片在本地处理,不会上传到 ImgTask 的服务器。

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Guides and tips from the blog

Short, practical articles to get more out of ImgTask and your image or PDF workflow.

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