CSS Filter Generator

Tune blur, brightness, contrast and more with a live preview, then copy compact filter CSS. Optional local image upload for real-world checks.

Adjust filters

CSS

filter: none;

When do you need CSS filter effects?

What this tool does

This CSS filter generator lets you tune blur, brightness, contrast, saturation, grayscale, sepia, hue-rotate, invert, and opacity with a live preview. Upload your own image or use the default logo to see real-world results. Copy a compact filter declaration with default values stripped — ready to paste into your stylesheet or component.

Why you need it

CSS filters achieve visual effects without opening Photoshop — hover dimming, muted thumbnails, duotone looks, and quick photo treatments in pure CSS. Guessing filter values in DevTools is slow; a dedicated editor shows the combined result as you drag sliders and omits redundant defaults from the output.

Uploading a test image reveals how filters behave on actual content rather than placeholder graphics. Everything processes locally — your assets never leave the browser.

How to use it

  1. Drag the filter sliders and watch the preview update in real time.
  2. Optionally upload an image for a realistic check on your own content.
  3. Copy the compact filter CSS from the output panel.
  4. Reset to clear all effects and start a new combination.

Practical examples

  • Hover dimming: Set brightness to 85% on a card image and apply via :hover { filter: brightness(0.85); }.
  • Disabled state: Combine grayscale(100%) and opacity(60%) for inactive thumbnail grids.
  • Duotone effect: Raise contrast, add sepia, then hue-rotate to shift the color cast without image editing software.
  • Focus blur backdrop: Pair a sharp foreground with a blurred sibling — note that frosted-glass overlays need backdrop-filter instead.

How it works

The CSS filter property accepts a space-separated list of functions, each with a numeric argument. Blur uses pixel radius; brightness, contrast, saturate, grayscale, sepia, invert, and opacity use percentages; hue-rotate uses degrees. Filters apply to the entire rendered element — including text and borders — in declaration order.

This tool chains only non-default values into the output. Uploading an image creates a local object URL for preview; no file is sent to a server. Reset restores every slider to its CSS default (e.g., brightness 100%, blur 0px).

Common mistakes

  • Confusing filter with backdrop-filter: filter affects the element itself; frosted glass behind content requires backdrop-filter.
  • Filtering parent containers: Applying blur to a wrapper blurs all child text and icons — target the image element instead.
  • Overusing blur on large images: High blur values on full-width heroes can cause jank on mobile GPUs.
  • Forgetting transition support: Animate filters with transition: filter 0.2s for smooth hover states.

FAQ

Which CSS filter functions are included?

Blur, brightness, contrast, saturate, grayscale, sepia, hue-rotate, invert and opacity. Default values are omitted from the copied CSS.

Can I preview on my own image?

Yes. Upload an image to preview filters locally — the file never leaves your browser.

Does filter work on backgrounds?

The filter property applies to the element rendering, including images and HTML. For backdrop effects use backdrop-filter separately.

Can I combine multiple filters?

Yes. All active sliders compose into one filter declaration. Order matches the CSS spec — blur, brightness, contrast, and the rest chain left to right.

Do filters affect performance?

Heavy blur on large images can trigger GPU compositing. Test on target devices; prefer smaller thumbnails for filtered galleries.

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