CSS Image Filter & Effect Generator (Blur, Sepia, Grayscale)
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This tool applies visual effects to an image and shows the result instantly. Drop in a PNG, JPEG, WebP, GIF, or BMP file and adjust blur, pixelation, grayscale, sepia, invert, hue rotation, brightness, saturation, and contrast with individual sliders, or start from a preset such as Mono, Fade, Cool, or Censor. Pixelation and blur are the usual tools for redacting a face, a licence plate, an address, or an account number before sharing a screenshot, and because the effect is baked into the exported image rather than layered over it in CSS, the underlying detail is genuinely gone from the file you download — which is not true of a CSS overlay that anyone can disable in dev tools. Effects combine freely, so you can stack a slight blur with reduced saturation for a soft background treatment. Alongside the exported image, the tool shows the equivalent CSS filter string, so front-end developers can copy the exact declaration to reproduce the same look live on the web. All processing happens locally through the browser canvas, so your image is never uploaded — which matters when the whole point is redacting something sensitive. Upload an image below to begin.
Features
- Pixelate or blur regions to redact sensitive details
- Grayscale, sepia, invert, hue rotate, brightness, saturation, and contrast
- One-click presets including Mono, Fade, Cool, and Censor
- Effects are baked into the exported image, not just applied in CSS
- Live preview as you move each slider
- Copies the equivalent CSS filter string for use on the web
- Export as PNG, JPEG, or WebP
- Runs entirely client-side — nothing is uploaded
Why use this image css filter & effect generator?
- Instant visual feedback with zero rendering delay
- Fully private — preview images are never uploaded
- Accurate CSS syntax that matches browser filter() spec exactly
- Simple slider-based interface, no code knowledge required
- Free with unlimited filter combinations
Frequently asked questions
What CSS property is used for image filters?
The filter property, applied like filter: blur(5px) or filter: grayscale(100%), controls visual effects on images and other elements.
Can I combine multiple CSS filters together?
Yes, you can chain multiple filter functions in one declaration, such as filter: blur(2px) sepia(50%) contrast(120%), and they apply in order.
Does a CSS filter change the actual image file?
No, CSS filters are applied visually at render time in the browser and never modify the source image file.
What's a typical blur value for a subtle hover effect?
A blur of 2-5px is common for subtle hover or background effects without making the image unrecognizable.
How do I make an image fully black and white with CSS?
Use filter: grayscale(100%) to fully desaturate an image while keeping its original brightness and contrast.
Are CSS filters supported in all browsers?
CSS filters are well supported in all modern browsers, though very old browser versions may not render them.
Is my preview image uploaded anywhere?
No, previews render locally in your browser and are never sent to a server.