Invert Image Colors
Flip every color in an image to its opposite with one click. Useful for reading negatives, flipping screenshots to a dark version, and checking designs — all processed locally in your browser.
Privacy-first: every image is processed locally in your browser. Nothing is uploaded, stored or transmitted to any server.
What inverting actually does
Each pixel stores an amount of red, green and blue from 0 to 255. Inverting replaces every one of those values with 255 minus itself, so black becomes white, white becomes black, and each color is replaced by its complement: blue turns orange, red turns cyan, green turns magenta. It is a perfectly reversible operation — inverting an inverted image gives you back exactly what you started with, pixel for pixel.
The slider runs to 100% for a full inversion, but partial values are legitimate too. Around 50% the image collapses toward a flat mid-gray, which is occasionally what you want as the base for a subtler effect.
Why people invert images
The most common reason is a scanned film negative: the scan is the inverse of the real photograph, and inverting it reveals the actual scene. The second is dark mode — a screenshot, diagram or chart on a white background inverts into something readable on a dark page, and inverting it back later costs nothing. Designers also use inversion as a quick sanity check: an icon or logo that survives inversion will hold up on both light and dark backgrounds.
It is worth knowing that inverting a photograph of people rarely looks like a film negative from a lab, because the orange mask baked into real negative film is not present in a digital picture. For scans of actual negatives you will often want to nudge the warmth and contrast sliders afterwards.
Local, instant, batch-capable
The inversion is computed on your own device by the browser's own graphics pipeline, so it is immediate even on large images, and the picture is never uploaded to anyone. Invert one image or a whole folder in one pass, then export as PNG for a lossless result, or JPG and WebP if size matters more.
Frequently asked questions
- Is my image uploaded to adjust it?
- No. Every adjustment is computed on a canvas inside your browser, so the photo never leaves your device and no server ever sees it.
- How do I make an image black and white?
- Set the “Black & white” slider to 100% — or click the B&W look, which also adds a little contrast so the result does not look flat. Noir goes further with a much harder contrast curve.
- What does inverting the colors do?
- It replaces every color with its opposite, which turns a photo into a negative: white becomes black, blue becomes orange. It is how you read a scanned film negative, and a quick way to flip a screenshot to a dark version.
- What is the difference between brightness and contrast?
- Brightness moves every tone up or down together, so the whole picture gets lighter or darker. Contrast pushes light and dark tones apart, which adds punch — or, in the negative direction, flattens the image into a soft, hazy look.
- What does Auto levels do?
- It measures each color channel of your photo, ignores the extreme 0.4% at each end, and stretches what is left across the full range. Washed-out, hazy or underexposed shots usually snap back to life with a single click.
- Can I adjust many photos at once?
- Yes. Drop in as many images as you like — the settings apply to all of them, and you can download the results individually or together as a single ZIP.
- Will adjusting reduce quality?
- The adjustment itself works at full resolution with no downscaling. Only the re-encode matters: choose PNG for a lossless result, or keep JPG/WebP at a high quality setting.