How do CSS filters work?

The browser's CSS filter property applies mathematical transforms to pixels — brightness changes all channel values uniformly, contrast stretches them around 50%, hue-rotate cycles them through the colour wheel. The browser uses hardware acceleration so previews stay smooth.

Will the exported PNG match the preview?

Yes. We render the same CSS filter into an offscreen canvas at original resolution, so the downloaded image is pixel-identical to the preview.

Can I apply the filter without downloading?

Yes — click 'Copy CSS filter' to get the filter string. Paste it into your stylesheet on an element and it applies without modifying the image file.

Does this work on HEIC or RAW?

Only if your browser can decode them. Most browsers handle JPEG, PNG, WebP, GIF, BMP. HEIC support is variable; RAW typically is not supported. Convert to a standard format first.

Why is there a small delay on larger images?

Rendering the filter into a canvas at full resolution takes a moment. The preview updates instantly; only the export step takes time (usually under a second for images up to 20 MP).

Image Filters

Apply brightness, contrast, blur, and vintage filters in the browser.

Filters are applied in your browser — images never upload.

Drop an image or click to upload

Drop an image to apply CSS filters in real time.

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Convert any image to a Base64 data URL for inline use.

What is an Image Filter Tool?

An image filter tool applies colour and tonal adjustments to a picture — brightness, contrast, saturation, blur, sepia, grayscale — to change its mood without re-drawing the content. Instagram-style colour grades, black-and-white conversions, vintage yellowed-photograph looks, and dreamy blurred backdrops are all just CSS filter stacks. Our tool is a visual editor for those stacks with a live preview and PNG export.

The engine is the browser's CSS filter property. It supports eight standard functions: brightness(), contrast(), saturate(),hue-rotate(), blur(), sepia(),grayscale(), and invert(). Chaining multiple functions in a single declaration applies them in order, so filter: grayscale(100%) contrast(120%) produces a black-and-white image with punched-up contrast. Every function runs in hardware on modern browsers, so the live preview updates at 60fps even on large images.

Preset filters cover the common looks. Vintage adds sepia and slight saturation loss for a faded-photograph feel. B&W strips colour and boosts contrast. Dramatic pushes contrast and saturation hard for a commercial/editorial look. Warm and Cool shift the overall temperature using hue and saturation tweaks. Faded washes out colour slightly for a soft photo-album feel. Every preset is a starting point — tune the sliders after applying one to get exactly your look.

Export. The tool renders the filter into an offscreen canvas at the image's original resolution and saves a PNG. That means the exported file has the filter permanently applied (unlike previewing with CSS on a live page, which keeps the original pixels untouched). For animated image effects on a website, copy the filter CSS string and apply it to your actual <img> element instead of exporting.

Practical notes. Browser filter on a canvas draws the image with the browser's own filter implementation, which matches what users will see in a live page — consistent across Chrome, Firefox, Safari. Very large images (above ~12 megapixels) can hit memory limits on mobile browsers; for those, resize first with our Image Resizer, then apply filters.

Privacy: the image is processed entirely in your browser. No upload, no server round-trip. The exported PNG is generated client-side and saved straight to your device.

How to apply image filters

Upload an image. Any common format.
Try a preset to get a quick starting look.
Tune the sliders — brightness, contrast, saturation, hue, and more.
Download PNG with the filter baked in, or copy the CSS to apply to a live page.

Features

Eight CSS filter functions with per-control sliders.
Eight curated presets (Vintage, B&W, Dramatic, Warm, Cool, Faded, Inverted, Original).
Live preview at 60fps.
PNG export at original resolution.
Copy the CSS filter string for use in your own pages.
Runs entirely in your browser — images never upload.

Frequently asked questions

How do CSS filters work?: The browser's CSS filter property applies mathematical transforms to pixels — brightness changes all channel values uniformly, contrast stretches them around 50%, hue-rotate cycles them through the colour wheel. The browser uses hardware acceleration so previews stay smooth.
Will the exported PNG match the preview?: Yes. We render the same CSS filter into an offscreen canvas at original resolution, so the downloaded image is pixel-identical to the preview.
Can I apply the filter without downloading?: Yes — click 'Copy CSS filter' to get the filter string. Paste it into your stylesheet on an <img> element and it applies without modifying the image file.
Does this work on HEIC or RAW?: Only if your browser can decode them. Most browsers handle JPEG, PNG, WebP, GIF, BMP. HEIC support is variable; RAW typically is not supported. Convert to a standard format first.
Why is there a small delay on larger images?: Rendering the filter into a canvas at full resolution takes a moment. The preview updates instantly; only the export step takes time (usually under a second for images up to 20 MP).