CSS Filter Generator

Apply and preview CSS filter effects with sliders and visual presets

What is it and how does it work?

CSS filters apply visual effects to images, backgrounds, and entire HTML elements using GPU-accelerated rendering — no JavaScript or canvas required. The filter property accepts one or more functions: blur(), brightness(), contrast(), grayscale(), hue-rotate(), invert(), opacity(), saturate(), sepia(), and drop-shadow(). They compose: applying brightness(1.2) then contrast(1.3) is different from contrast(1.3) then brightness(1.2) because each filter transforms the output of the previous one.

This generator provides live sliders for each filter function and shows a real-time preview on a sample image (or your own uploaded image). The output is a single CSS filter property declaration ready to paste. A key use case beyond image styling is creating coloured icon variants from SVG icons — you can invert a black icon to white or tint a grayscale icon to any colour using a combination of invert, sepia, saturate, and hue-rotate without needing to edit the SVG.

Common use cases

• Instagram-style filter: combine saturate(1.3), contrast(1.1), and brightness(1.05) for a vivid, punchy photo effect without touching the image file.
• Dark mode images: apply invert(1) hue-rotate(180deg) to images on a dark-mode page so they don't appear as bright white boxes against a dark background.
• Recolour SVG icons: turn a black icon into a specific brand colour using filter: invert(1) sepia(1) saturate(5) hue-rotate(200deg) — the exact values depend on the target colour.

Frequently asked questions

What is the difference between filter and backdrop-filter?

filter applies to the element and its contents. backdrop-filter applies only to the area behind the element (the background), leaving the element's own content unaffected. backdrop-filter is used for frosted glass effects on overlapping elements like modals and tooltips.

Do CSS filters affect performance?

Filters are GPU-accelerated in modern browsers and are generally very fast for static elements. Animating filters on large elements or applying them to many elements simultaneously can cause jank — profile before optimising. Adding will-change: filter tells the browser to promote the element to its own compositing layer.

Can I use filter on background images?

filter applies to the entire element including its background. To filter only the background image without affecting the content, place the image in a ::before pseudo-element (with filter applied) while keeping the content in the parent.

What does hue-rotate do exactly?

hue-rotate shifts all colours in the element around the colour wheel by the specified angle in degrees. 0deg = no change; 180deg = complementary colours (red becomes cyan, blue becomes orange). 360deg returns to the original. It's useful for creating colour variants without separate image files.

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