What does saturation change?

Saturation controls how strong the colors are: higher makes them vivid, lower makes them muted, and −100 gives black and white.

Is this tool free and private?

Yes. It is free with no limits, sign-up or watermark, and your images are processed inside your browser — nothing is uploaded to a server.

Which image formats are supported?

You can open JPG, PNG, WebP, HEIC, AVIF, GIF, BMP, SVG, TIFF, PSD, ICO, TGA, JPEG XL and camera RAW files, and save the result as JPG, PNG, WebP, AVIF and more.

Adjust Image Brightness and Contrast

100% In-Browser Execution

Category: Image Converter & Editor • Free Online Utility

Fix dark or dull photos with brightness, contrast, saturation and hue sliders. Everything runs in your browser: no upload, no sign-up and no watermark.

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Privacy Guarantee: This tool processes all data locally inside your browser memory using HTML5 APIs. No text, code, or personal data is transmitted over the network.