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About this tool
Adjust brightness, saturation, inversion, grayscale, rotation, and flip on your images.
Image Editor applies four CSS filter adjustments — brightness and saturation from 0 to 200 percent, inversion and grayscale from 0 to 100 percent — plus 90-degree rotation and horizontal or vertical flipping, then bakes them into a downloadable JPEG at the photo's original pixel dimensions. The preview updates live as you drag a slider, and a single reset returns every control to its neutral value. It is for quick corrections where opening a full editor would be overkill.
Open Image Editor on AltFTool — it loads instantly in your browser.
Drop an image here or click to browse files — the Choose Image button also opens the picker — and the photo loads locally through an object URL.
Pick a filter chip — Brightness, Saturation, Inversion, Grayscale — and drag its slider (0-200% for the first two, 0-100% for the rest), or use the Rotate & Flip buttons: Left, Right, H-Flip, V-Flip.
Press Save Image to bake the filters into a JPEG named edited-image.jpg at the image's natural width and height; Reset returns every control to its neutral value.
The save step draws to a canvas sized to the image's natural width and height, so a 4000 px photo comes back 4000 px, not preview-sized.
Brightness, saturation, inversion and grayscale are composed with rotation and flips and applied together when you export.
Adjustments render live through CSS filters, and reset returns brightness and saturation to 100 percent with everything else at zero.
Brightness (0-200%), saturation (0-200%), inversion (0-100%), grayscale (0-100%), rotation in 90-degree steps either direction, and horizontal or vertical flip. 100% is the neutral setting for brightness and saturation; 0% is neutral for inversion and grayscale.
A JPEG named edited-image.jpg, rendered at the source image's native pixel dimensions. JPEG has no transparency, so a PNG with a transparent background will come back with that area filled rather than clear.
No. The file is loaded through a local object URL, previewed with CSS filters and re-drawn into a canvas in the page, so nothing is transmitted anywhere.
The preview uses CSS filters on the displayed element while the export applies the same filter string to a canvas at full resolution, and rotation is applied about the canvas centre without resizing the canvas. That means a 90-degree rotation on a non-square photo can crop the long edge, so check the downloaded file when rotation is involved.