Upload an image to adjust
Accepted formats: JPG, PNG, WEBP, BMP, GIF (non-animated)
Paste (Ctrl/⌘+V) or drop an image — or import from a URL
Hue, saturation, and lightness are the three knobs of color. This tool converts every pixel into the HSL color model so you can turn each one independently: rotate the hue to spin the whole image around the color wheel (turn a red car blue, shift a sky's tone), raise or lower saturation to make colors pop or fade toward grayscale, and adjust lightness to brighten or darken everything. Image Machine applies all three with live sliders — hue from −180° to +180°, saturation and lightness from −100 to +100 — and shows the result instantly. It's the everyday adjustment you reach for to recolor an object, mute an over-saturated photo, revive a flat one, or correct a color cast. Because hue and saturation only act on color, neutral grays, blacks, and whites are left alone except by the lightness slider. Everything runs locally in your browser on the HTML canvas — your image is never uploaded, transparency is preserved, and there's no sign-up and no watermark.
How It Works
Choose a tool
Pick from 120+ tools to resize, convert, compress, or enhance your image.
Upload & edit
Drag and drop your image and adjust the settings. It stays on your device.
Download
Save your result instantly — no watermark, no sign-up required.
Why Image Machine?
Your files never leave your device
All processing runs locally in your browser. Your images are never uploaded to a server.
Completely free
Every tool is free, with no limits, no watermarks, and no hidden costs.
Lightning fast
No upload waiting — your images are processed instantly on your own device.
Professional quality
Pixel-perfect output with full control over format, size, and quality.
Frequently Asked Questions
What's the difference between hue, saturation, and lightness?
Hue is the color itself — its position on the color wheel (red, orange, green, blue…), so rotating it shifts every color toward a different one. Saturation is how intense or pure the color is: high saturation is vivid, zero saturation is grayscale. Lightness is how bright the pixel is, from black through the color to white. Adjusting them separately lets you change color without touching brightness, or vice versa.
How do I recolor an object or change a color in my image?
Drag the Hue slider. It rotates every color around the wheel by the number of degrees you choose, so a red object becomes orange, green, or blue depending on how far you turn it (±180° covers the full range in both directions). This shifts all colors at once; for changing just one color while leaving others alone you'd need a selective-color tool, but for an overall recolor or color-cast fix, the hue slider is the fastest way.
Why doesn't saturation change the gray or black-and-white parts?
Gray, black, and white are neutral — they have no hue and zero saturation to begin with, so rotating the hue or boosting saturation has nothing to act on and they stay exactly as they are. Only the Lightness slider changes them. This is the standard behavior of a hue/saturation adjustment and is usually what you want, since it leaves shadows and highlights neutral while you recolor everything else.
Is my image uploaded, and does it keep transparency?
No upload — the adjustment runs entirely in your browser using the HTML canvas, so your image never leaves your device, and it works offline once the page has loaded. Only the red, green, and blue channels are changed; the alpha channel is left untouched, so transparent areas of a PNG stay transparent. There's no sign-up and no watermark.