Image Filters

About Image Filters - Free Online Photo Editor

Image filters are powerful tools that allow you to enhance, modify, and stylize your photos online without any software installation. This free image filter tool provides a comprehensive set of professional filters including brightness adjustment, contrast enhancement, saturation control, hue rotation, blur effects, grayscale conversion, sepia tone, and color inversion. All filters can be adjusted in real-time with instant preview, making it easy to achieve the perfect look for your images. No watermark, no registration required, and completely free to use.

What filters are available?

This tool provides 8 professional filters: Brightness (0-200%), Contrast (0-200%), Saturation (0-200%), Hue Rotation (0-360°), Blur (0-20px), Grayscale (0-100%), Sepia (0-100%), and Invert (0-100%). You can combine multiple filters to create unique effects.

How does real-time preview work?

As you adjust any slider, the filter is immediately applied to the preview canvas. This allows you to see the results in real-time and fine-tune your settings before downloading the final image. The preview uses CSS filters and canvas rendering for smooth, instant feedback.

What is the difference between Sepia and Grayscale?

Grayscale converts the image to black and white by removing all color information. Sepia adds a warm, brownish tone to create a vintage or antique photograph effect. Sepia is often used for nostalgic or artistic purposes.

Can I combine multiple filters?

Yes! You can adjust multiple filter sliders simultaneously. For example, you can increase brightness while also adding a sepia tone and slight blur. The filters are applied in combination, allowing for endless creative possibilities.

What does Hue Rotation do?

Hue Rotation shifts all colors in the image along the color wheel. A value of 0° shows the original colors, 180° shows complementary colors, and 360° returns to the original. This is great for creating color variations or artistic effects.

Does applying filters reduce image quality?

The filters are applied using high-quality canvas operations that preserve image detail. However, extreme filter values (especially high blur or very low brightness) may affect perceived quality. For JPEG and WebP exports you control the quality with a slider (default 92%); PNG is always lossless.

Is my image uploaded to a server?

No. All filtering happens entirely in your browser using the HTML canvas - your image never leaves your device and is never sent to any server. This makes the tool safe for private, confidential, or client work, and it keeps working even offline once the page has loaded.

Can I copy the CSS filter() code?

Yes. The CSS Filter Code box shows the exact filter: brightness() contrast() saturate() hue-rotate() blur() grayscale() sepia() invert() declaration that reproduces your current sliders. Copy it and paste it into your stylesheet or inline style to apply the same look in code - ideal for front-end developers and UI designers.

Which output format should I choose?

Pick PNG to keep transparency and lossless quality (best for logos, screenshots, graphics with alpha). Choose JPEG for photographs where small file size matters and transparency is not needed. Choose WebP for the best compression at high quality on the modern web. JPEG and WebP add a quality slider so you can balance size against fidelity.

What image formats are supported?

You can load JPEG, PNG, WebP, BMP, GIF, and more. Because the browser canvas can only write PNG, JPEG, and WebP, GIF and BMP inputs are re-encoded to the output format you select - so a filtered GIF or BMP is exported as a real PNG, JPEG, or WebP file with a matching extension, never a mislabeled file.

What are the size limits?

Maximum input file size is 10MB. Images of any dimensions are supported, though very large images may take longer to process. The filtered image maintains the same dimensions as the original.