# Blur Image

> Apply blur effect to your images online for free. Adjustable intensity up to 200px. Batch processing, format selection (JPG/PNG/WebP). Privacy protected.

URL: https://acrafto.com/en/blur-images-online-free/

Tools are interactive browser apps; there is no public API, no endpoints to call and no server-side processing. To use a tool, open its HTML page in a browser.

Whether you need to quickly **anonymize sensitive data** in screenshots, create an **aesthetically blurred background** for your website, or just want to cover faces in photos, our **Image Blur Tool** is here for you.

Forget launching Photoshop for simple blurring. Here you can apply a **blur effect to hundreds of photos at once**, set the precise blur intensity, and download everything in one package – all securely within your browser.

## Why Use Our Online Blur Tool?

Our editor combines speed with precise settings, allowing you to achieve exactly the result you’re looking for.

### 1\. Absolute Control Over Blur Intensity 🎚️

Not every image requires the same adjustment. Our tool offers you a slider for **blur intensity** – in pixels (up to 200 px) or as a percentage of the shorter side (up to 30 %), so the effect scales with the image size. You can choose between Gaussian, motion and radial (zoom) blur, or start from a preset (Censor, Blurred background, Soften).

- **Subtle Blur (1–5 px):** Ideal for softening details or creating a “dreamy” feel.
- **Strong Blur (20+ px):** Perfect for absolute illegibility of text or anonymizing individuals.
- You see the result in a live preview with a before/after comparison slider, so you can fine-tune it until it looks right.
- **Blur only what matters:** draw rectangles or ellipses in the preview and blur just those areas – or everything except them. The selection applies to every image in the batch.

### 2\. Security First – Anonymize Without Risk 🔒

Sensitive documents, car license plates, or children’s faces are often blurred. Most online editors require data to be uploaded to an external server. We don’t.

- **Client-side Processing:** All adjustments take place directly in your browser, using your device’s power.
- Your photos are **never uploaded anywhere**. What’s on your computer stays there.

### 3\. Batch Edits and Smart Export ⚡

Do you have a folder full of product photos from which you want to create backgrounds?

- **Batch Processing:** Upload even 100 images at once.
- **Format Flexibility:** Input files can be diverse (JPG, PNG…), but you determine the output. You can unify everything into an efficient **WebP**, for example.
- **Download as ZIP:** Don’t save files one by one. At the end of the process, we’ll offer you a single ZIP archive with all the blurred images.

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## When to Use a Blur Effect?

Blurring isn’t just a photography mistake; it’s a powerful graphic tool:

- **Privacy Protection (GDPR):** Do you need to publish a screenshot, but names, emails, or passwords are visible? Blurring the entire image or just selected areas of it is the fastest way to anonymity.
- **Background Creation:** A sharp photo under text often looks distracting and makes the text unreadable. By heavily blurring the photo, you create an abstract, color-harmonized background on which white text stands out perfectly.
- **Focus and Attention:** In e-commerce and design, blur is used to suppress less important elements to highlight what’s essential (e.g., a button or a product in the foreground).
- **Placeholder Images:** Developers often use blurred versions of images (called LQIP - Low Quality Image Placeholders) for faster website loading before the full version is fetched.

---

## Quality and Format Settings Guide

Our tool gives you full control over how the resulting file will look.

| Setting | Recommended Value | When to Use? |
| :--- | :--- | :--- |
| **Blur Intensity** | **5–10 px** | For subtle blurring where content is still recognizable (e.g., website background). |
| **Blur Intensity** | **20+ px** | For complete censorship and illegibility of text. |
| **Output Quality** | **90 %** | The golden mean. The image looks great, but the file isn’t unnecessarily large. |
| **Format: WebP** | **Always for Web** | If you’re putting images on the internet, WebP ensures the smallest size while maintaining quality. |

---

## How to Batch Blur Photos (Guide)

1. **Upload Images:** Drag files with your mouse into the window or click the **“Browse files”** button. We support JPG, PNG, WebP, and GIF.
2. **Effect Settings:**
   - Use the **Blur Intensity** slider to determine how much the image should be “blurred.” The higher the value (px or %), the stronger the effect.
   - Optionally switch **Apply to** to selected areas (or everything except the selection) and drag in the preview to mark them.
   - Use the **Output Quality** slider to optimize file size.
3. **Select Format:** In the dropdown, choose whether to keep the original format or convert everything (e.g., to modern WebP).
4. **Download:** Once done, download individual files or use the button to download everything in a **ZIP archive**.

---

## Frequently Asked Questions (FAQ)

### Does blurring affect file size?

Yes, and often positively! A blurred image contains fewer details and high-frequency noise, which compression algorithms ( like JPG or WebP) love. A heavily blurred image can have a significantly smaller data size than a sharp original, even while maintaining resolution.

### Can I blur only a part of the image (e.g., a face)?

Yes. Set **Apply to** to selected areas and drag in the preview to draw rectangles or ellipses – as many as you need, e.g. over faces or licence plates. You can also invert the selection and blur everything except the chosen areas, which keeps the subject sharp against a blurred background.

### Does the tool work on mobile?

Absolutely. Our website is fully responsive. You can easily blur photos directly from your iPhone or Android gallery before sharing them on social media.

### Is there a limit to the number of photos uploaded?

We don't set any limits. Processing takes place on your device, so you are only limited by your computer's or phone's memory. Typically, dozens to hundreds of photos can be processed within seconds.

## Other languages

- Čeština (cs): [Rozmazání fotky](https://acrafto.com/cs/rozmazani-obrazku/) ([Markdown](https://acrafto.com/cs/rozmazani-obrazku/index.md))
- Slovenčina (sk): [Rozmazanie fotky](https://acrafto.com/sk/rozmazanie-obrazkov-online/) ([Markdown](https://acrafto.com/sk/rozmazanie-obrazkov-online/index.md))
- Deutsch (de): [Bild unscharf machen](https://acrafto.com/de/bilder-verwischen-online/) ([Markdown](https://acrafto.com/de/bilder-verwischen-online/index.md))
- Français (fr): [Flouter une image](https://acrafto.com/fr/flouter-images-en-ligne/) ([Markdown](https://acrafto.com/fr/flouter-images-en-ligne/index.md))
- Español (es): [Desenfocar imagen online](https://acrafto.com/es/desenfocar-imagenes-online-gratis/) ([Markdown](https://acrafto.com/es/desenfocar-imagenes-online-gratis/index.md))
- Italiano (it): [Sfocare immagini](https://acrafto.com/it/sfocatura-immagini-online-gratis/) ([Markdown](https://acrafto.com/it/sfocatura-immagini-online-gratis/index.md))
- Português (pt): [Desfocar imagem](https://acrafto.com/pt/desfocar-imagens-online-gratis/) ([Markdown](https://acrafto.com/pt/desfocar-imagens-online-gratis/index.md))
- Nederlands (nl): [Foto vervagen](https://acrafto.com/nl/afbeeldingen-vervagen-online/) ([Markdown](https://acrafto.com/nl/afbeeldingen-vervagen-online/index.md))
- Polski (pl): [Rozmycie zdjęcia](https://acrafto.com/pl/rozmycie-zdjec-online/) ([Markdown](https://acrafto.com/pl/rozmycie-zdjec-online/index.md))
- Română (ro): [Estompare imagini](https://acrafto.com/ro/estompare-imagini-online-gratuit/) ([Markdown](https://acrafto.com/ro/estompare-imagini-online-gratuit/index.md))
- Magyar (hu): [Kép homályosítása](https://acrafto.com/hu/kepek-elmosasa-online/) ([Markdown](https://acrafto.com/hu/kepek-elmosasa-online/index.md))
- Ελληνικά (el): [Θόλωμα φωτογραφίας](https://acrafto.com/el/image-blur-online/) ([Markdown](https://acrafto.com/el/image-blur-online/index.md))
- Български (bg): [Размазване на снимка](https://acrafto.com/bg/blur-snimki-online/) ([Markdown](https://acrafto.com/bg/blur-snimki-online/index.md))
- Hrvatski (hr): [Zamućivanje slike](https://acrafto.com/hr/zamucivanje-slika-online-blur-efekt/) ([Markdown](https://acrafto.com/hr/zamucivanje-slika-online-blur-efekt/index.md))
- Slovenščina (sl): [Zameglitev slik](https://acrafto.com/sl/zameglitev-slik-online/) ([Markdown](https://acrafto.com/sl/zameglitev-slik-online/index.md))
- Eesti (et): [Pildi hägustamine](https://acrafto.com/et/hagusta-pildid-online/) ([Markdown](https://acrafto.com/et/hagusta-pildid-online/index.md))
- Latviešu (lv): [Attēla izpludināšana](https://acrafto.com/lv/attelu-izpludinasana-online/) ([Markdown](https://acrafto.com/lv/attelu-izpludinasana-online/index.md))
- Lietuvių (lt): [Nuotraukų suliejimas](https://acrafto.com/lt/nuotrauku-suliejimas-internetu-nemokamai/) ([Markdown](https://acrafto.com/lt/nuotrauku-suliejimas-internetu-nemokamai/index.md))
- Svenska (sv): [Sudda ut bild](https://acrafto.com/sv/oskarpa-bilder-online/) ([Markdown](https://acrafto.com/sv/oskarpa-bilder-online/index.md))
- Dansk (da): [Slør billeder](https://acrafto.com/da/slor-billeder-online/) ([Markdown](https://acrafto.com/da/slor-billeder-online/index.md))
- Suomi (fi): [Kuvan sumennus](https://acrafto.com/fi/kuvien-sumennus/) ([Markdown](https://acrafto.com/fi/kuvien-sumennus/index.md))
- Norsk (no): [Blur bilder](https://acrafto.com/no/uskarphet-bilder-online/) ([Markdown](https://acrafto.com/no/uskarphet-bilder-online/index.md))
- Українська (uk): [Розмиття фото](https://acrafto.com/uk/rozmittya-foto-onlayn/) ([Markdown](https://acrafto.com/uk/rozmittya-foto-onlayn/index.md))
- Русский (ru): [Размытие изображений](https://acrafto.com/ru/razmytie-izobrazheniy-onlayn/) ([Markdown](https://acrafto.com/ru/razmytie-izobrazheniy-onlayn/index.md))
- Српски (sr): [Zamućenje slike](https://acrafto.com/sr/zamuti-slike-online/) ([Markdown](https://acrafto.com/sr/zamuti-slike-online/index.md))
- Македонски (mk): [Заматување слики](https://acrafto.com/mk/razmazuvanje-sliki-online-besplatno/) ([Markdown](https://acrafto.com/mk/razmazuvanje-sliki-online-besplatno/index.md))
- Bosanski (bs): [Zamućivanje slike](https://acrafto.com/bs/zamuti-slike-online/) ([Markdown](https://acrafto.com/bs/zamuti-slike-online/index.md))
- Shqip (sq): [Turbullo fotot](https://acrafto.com/sq/turbullo-fotot-online-falas/) ([Markdown](https://acrafto.com/sq/turbullo-fotot-online-falas/index.md))
- Türkçe (tr): [Fotoğraf bulanıklaştırma](https://acrafto.com/tr/online-fotograf-bulaniklastirici/) ([Markdown](https://acrafto.com/tr/online-fotograf-bulaniklastirici/index.md))
- 日本語 (ja): [画像ぼかし加工](https://acrafto.com/ja/image-blur-online-tool/) ([Markdown](https://acrafto.com/ja/image-blur-online-tool/index.md))
- 한국어 (ko): [이미지 블러 처리](https://acrafto.com/ko/image-blur-online/) ([Markdown](https://acrafto.com/ko/image-blur-online/index.md))
- العربية (ar): [تغبيش الصور](https://acrafto.com/ar/blur-images-online-tool/) ([Markdown](https://acrafto.com/ar/blur-images-online-tool/index.md))
- हिन्दी (hi): [फोटो ब्लर करें](https://acrafto.com/hi/online-image-blur-tool/) ([Markdown](https://acrafto.com/hi/online-image-blur-tool/index.md))
- Bahasa Indonesia (id): [Blur gambar](https://acrafto.com/id/efek-blur-gambar-online/) ([Markdown](https://acrafto.com/id/efek-blur-gambar-online/index.md))
- Tiếng Việt (vi): [Làm mờ ảnh](https://acrafto.com/vi/cong-cu-lam-mo-anh-truc-tuyen/) ([Markdown](https://acrafto.com/vi/cong-cu-lam-mo-anh-truc-tuyen/index.md))
- ไทย (th): [เบลอรูปภาพ](https://acrafto.com/th/blur-image-online-free/) ([Markdown](https://acrafto.com/th/blur-image-online-free/index.md))
- עברית (he): [טשטוש תמונה](https://acrafto.com/he/blur-images-online/) ([Markdown](https://acrafto.com/he/blur-images-online/index.md))