Free Online CSS Filter Generator Tool

Generate CSS filter effects online instantly with this free CSS Filter Generator. Use the tool below to create blur, brightness, contrast, grayscale, sepia, saturation, hue rotation, opacity and drop-shadow CSS filters for images and UI elements.

CSS filter settings

Create CSS filter effects for images, cards and UI previews with blur, brightness, contrast, saturation, grayscale and more.

The uploaded image is only used locally for preview. It is not uploaded anywhere.

Filter controls

Adjust each filter value and preview the generated CSS in real time.

Blur 0px
Brightness 100%
Contrast 100%
Grayscale 0%
Hue rotate 0deg
Invert 0%
Opacity 100%
Saturate 100%
Sepia 0%
Drop shadow X 0px
Drop shadow Y 12px
Drop shadow blur 24px
Drop shadow opacity 24%

Live preview

Preview the filter on a generated image block or your own local image.

CSS filter preview

Generated CSS

Filter value none

Saved filters

Recent and favorite filter presets are saved locally in this browser.

Recent filters

Favorite filters

What is a CSS Filter Generator?

A CSS Filter Generator is an online tool that helps you create CSS filter effects visually. Instead of writing filter values manually, you can adjust blur, brightness, contrast, grayscale, sepia, saturation, hue rotation, opacity and drop shadow settings, preview the result and copy the generated CSS code.

The CSS filter property is commonly used to apply visual effects to images, icons, backgrounds, cards, buttons, thumbnails and UI elements. It can help you create image effects directly with CSS without editing the original image file.

This CSS Filter Generator runs directly in your browser, making it fast and simple to create CSS filter code without installing software.

What can you use it for?

You can use this online CSS filter generator to create image filters, hover effects, grayscale images, blurred backgrounds, darkened images, brightened photos, sepia effects, saturated visuals, color-shifted elements and drop-shadow effects.

For example, you may want to make an image black and white, add a blur effect to a background, increase contrast on a thumbnail, reduce brightness behind text, create a sepia photo style, or apply a hover filter to cards and buttons.

How to use the CSS Filter Generator

Step 1: Adjust the filter values

Use the controls to change filter values such as blur, brightness, contrast, grayscale, sepia, saturation, hue rotation, opacity and drop shadow.

Step 2: Preview the filter effect

Check the live preview to see how the CSS filter changes the image or element. Adjust the values until the effect matches your design.

Step 3: Copy the CSS code

Copy the generated CSS filter code and paste it into your stylesheet, component, page builder, theme or frontend project.

CSS filter options

This CSS Filter Generator can help with common filter effect tasks such as:

  • Generate CSS filter effects
  • Create image filters with CSS
  • Create blur filter CSS
  • Create brightness filter CSS
  • Create contrast filter CSS
  • Create grayscale filter CSS
  • Create sepia filter CSS
  • Create saturation filter CSS
  • Create hue rotation CSS
  • Create opacity filter CSS
  • Create drop-shadow filter CSS
  • Preview filter effects live
  • Generate clean CSS code
  • Copy CSS filter code instantly
  • Create image hover effects
  • Create dark overlay-style image effects
  • Create black and white images with CSS
  • Use the tool without installing software

The final CSS output may depend on the values you choose, the image or element being styled and how the generated code is applied in your project.

What does filter do in CSS?

The CSS filter property applies graphical effects to an element. It is often used on images, but it can also be applied to other HTML elements.

With CSS filters, you can change how an element looks without modifying the source file. For example, you can make an image grayscale, increase its brightness, blur it, adjust contrast, add sepia, change saturation or apply a drop shadow.

CSS filters are useful for visual design, image styling, UI states, hover effects, overlays and creative web layouts.

CSS filter syntax

The basic syntax uses the filter property followed by one or more filter functions.

.image {
  filter: brightness(90%) contrast(120%) grayscale(20%);
}

You can combine multiple filters in a single line. The browser applies them in order from left to right.

.image {
  filter: blur(2px) brightness(80%) saturate(140%);
}

Common CSS filter examples

Blur filter

The blur() function softens the element.

filter: blur(4px);

This is useful for background effects, disabled states, overlays and creative image styling.

Brightness filter

The brightness() function makes an element lighter or darker.

filter: brightness(80%);

Values below 100% make the element darker. Values above 100% make it brighter.

Contrast filter

The contrast() function adjusts the difference between light and dark areas.

filter: contrast(120%);

Higher contrast can make an image feel sharper and more dramatic.

Grayscale filter

The grayscale() function removes color from an element.

filter: grayscale(100%);

This is useful for black and white images, disabled states, muted cards and hover transitions.

Sepia filter

The sepia() function gives an image a warm brown-toned effect.

filter: sepia(70%);

This can create vintage, editorial or warm photo effects.

Saturation filter

The saturate() function controls color intensity.

filter: saturate(150%);

Higher values make colors stronger. Lower values make colors more muted.

Hue rotation filter

The hue-rotate() function shifts the colors of an element around the color wheel.

filter: hue-rotate(90deg);

This is useful for creative color effects, icon variations and experimental UI styles.

Opacity filter

The opacity() function controls transparency.

filter: opacity(70%);

This can be useful for subtle states, muted elements and layered designs.

Drop-shadow filter

The drop-shadow() function adds a shadow based on the visible shape of the element.

filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.25));

This can work especially well for transparent PNGs, SVGs, icons and cut-out images.

CSS filter vs backdrop-filter

CSS filter

The filter property applies effects directly to the element itself. If you apply filter: blur(4px); to an image, the image becomes blurred.

Backdrop filter

The backdrop-filter property applies effects to the area behind an element. It is commonly used for glassmorphism, frosted glass panels and blurred overlays.

Use filter when you want to style the element itself. Use backdrop-filter when you want to blur or modify what appears behind the element.

CSS filter vs image editing

CSS filter

CSS filters are applied in the browser. They do not permanently change the original image file. This makes them useful for hover effects, responsive designs, UI states and reversible styling.

Image editing

Image editing changes the actual image file. This is better when you need to export a final optimized image with the effect already applied.

If you want a flexible website effect, use CSS filters. If you need a permanent image result, use an image editor or export tool.

CSS filters for hover effects

CSS filters are commonly used for hover interactions. For example, you can start with a grayscale image and restore full color on hover.

.card img {
  filter: grayscale(100%);
  transition: filter 0.2s ease;
}

.card:hover img {
  filter: grayscale(0%);
}

You can also use brightness, contrast, blur, opacity or saturation to create interactive image states.

.card:hover img {
  filter: brightness(110%) contrast(105%);
}

CSS filter design tips

Keep readability in mind

If you apply filters to images behind text, make sure the text remains readable. Darkening or blurring an image can help improve contrast.

Use transitions for interaction

Filters feel smoother when combined with CSS transitions, especially for hover effects.

Avoid too much blur

Heavy blur can be visually expensive and may reduce clarity. Use it carefully, especially on large elements.

Combine filters carefully

Multiple filters can create powerful effects, but too many can make an image look unnatural or reduce performance.

Test on different images

The same filter values can look different depending on the original image colors, brightness and contrast.

Use drop-shadow for transparent assets

drop-shadow() can be more useful than box-shadow for PNGs, SVGs and icons because it follows the visible shape of the content.

Common filter use cases

For images

Apply grayscale, sepia, brightness, contrast and saturation effects to photos, thumbnails and galleries.

For hover effects

Create interactive image states for cards, portfolios, blog grids, product images and navigation elements.

For backgrounds

Blur, darken or desaturate background images to make foreground text easier to read.

For icons and logos

Use filters to adjust icon brightness, opacity, color feel or drop shadows without editing the original asset.

For cards and UI components

Apply filters to media cards, image overlays, banners, hero sections and visual components.

For creative effects

Create vintage images, muted visuals, neon color shifts, dramatic contrast and stylized design treatments.

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Frequently Asked Questions

Is this CSS Filter Generator free?

Yes. This CSS Filter Generator is completely free to use.

No. You can generate CSS filter effects directly in your browser without installing software.

filter is a CSS property that applies graphical effects such as blur, brightness, contrast, grayscale, sepia, saturation, hue rotation, opacity and drop shadow to an element.

Yes. CSS filters are commonly used on images, thumbnails, icons, backgrounds and visual UI elements.

Yes. You can use filter: grayscale(100%); to make an image black and white.

Yes. You can use the blur() filter function to blur an image or element.

Yes. You can use the brightness() filter function with a value below 100% to make an image darker.

Yes. You can combine multiple filter functions in the same filter property.

Yes. CSS filters work well with hover states and transitions for interactive image effects.

Yes. After creating your filter effect, you can copy the generated CSS code and use it in your project.

Yes. You can copy the generated CSS and use it in WordPress, Elementor, custom CSS fields, blocks, themes or frontend projects.

filter affects the element itself, while backdrop-filter affects the area behind an element.

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