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CSS Filter Generator

100% Free

Visually compose CSS filters — blur, brightness, contrast, grayscale, saturate, sepia, invert, hue-rotate and opacity — on a live image preview, then copy clean CSS.

Live Preview
Filter Presets
100% Client-Side
No Sign Up
Presets
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Live preview
Sample
CSS
filter: none;

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  • Responsive design
  • Lightweight & fast
  • No backend required
  • Always up-to-date 
<iframe
  src="https://tools.town/embed/css-filter-generator/"
  width="100%"
  height="600"
  style="border:none; border-radius:12px;"
  loading="lazy"
  title="CSS Filter Generator">
</iframe>

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How to Use

  1. 1 Drag the sliders for blur, brightness, contrast, grayscale and more
  2. 2 Or start from a preset: Vintage, B&W, Cool, Dramatic, or Faded
  3. 3 Upload your own image to preview the filter on real content
  4. 4 Watch the preview update live as you tune each value
  5. 5 Copy the filter CSS and apply it to any element

Features

  • Nine filter functions: blur, brightness, contrast, grayscale, saturate, sepia, invert, hue-rotate, opacity
  • Five curated presets for instant looks
  • Upload your own image, or use the built-in sample
  • Only non-default filters are emitted, so the CSS stays clean
  • Reset button to return every slider to neutral
  • Runs entirely in your browser — your image never leaves your device

Why it Matters

The CSS filter property applies image-editing effects — blur, desaturation, colour shifts — directly in the browser, with no Photoshop round-trip and no extra image files to host. Stacking the functions in the right order by hand is awkward, so generating the value from live sliders lets you dial in exactly the look you want and ship a single, cache-friendly line of CSS.

★★★★★

Use Cases

Image Treatments

Apply vintage, black-and-white, or dramatic looks without editing files

Hover & Focus States

Brighten, blur, or desaturate images on interaction

Overlays & Backdrops

Blur a background behind a modal or hero text for legibility

Learning Filters

See how each filter function changes an image in real time

What this tool does

The CSS Filter Generator builds the filter property from nine adjustable functions and shows the result on a live image. Slide blur, brightness, contrast, grayscale, saturate, sepia, invert, hue-rotate, and opacity — or pick a preset — and copy a clean one-line value when it looks right.

How it works

Each slider maps to a CSS filter function with a neutral default (100% for brightness/contrast/saturate/opacity, 0 for the rest). The generator emits only the functions you’ve actually changed, so the output stays short and readable, and joins them in a fixed order for reproducible results. The pure buildFilter function does the assembly.

Privacy

Everything runs locally in your browser. Any image you upload is used only for the preview and is never uploaded or stored.

Frequently Asked Questions

Does the order of filter functions matter?
Yes. Filters are applied left to right, and the output of one feeds into the next. Grayscale followed by sepia looks different from sepia followed by grayscale, for example. This generator emits the functions in a consistent, predictable order so your results are reproducible.
What's the difference between brightness and opacity?
Brightness multiplies the lightness of the pixels — at 0% the image is black, at 200% it's blown out. Opacity controls how transparent the element is, letting the background show through. They look similar at a glance but do completely different things.
Can I use filter to blur the background behind a modal?
To blur the page behind an element you usually want backdrop-filter rather than filter — filter blurs the element it's applied to, while backdrop-filter blurs whatever is behind it. The blur value you build here works in both properties.
Will filters slow down my page?
Filters are GPU-accelerated in modern browsers and are generally cheap, but large blur radii over big areas can cost performance, especially on mobile. Use them deliberately and test on a real device if you're filtering full-screen elements.
Is my uploaded image stored anywhere?
No. The image is read locally in your browser for the preview only. It is never uploaded to a server, logged, or saved.
📖

Want to understand the math?

Browse all guides →
CSS filter Explained
css

CSS filter Explained: Blur, Brightness, Hue-Rotate and More

A complete guide to the CSS filter property — every filter function, why order matters, the difference between filter and backdrop-filter, performance tips, and building effects visually.

23 Jun 2026

5 min read

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