How do you invert a PNG's colours?
Drop your PNG into the tool above and download the result — the inversion runs instantly in your browser. There are no settings: the effect is a single, exact transformation, so the output is predictable every time.
What does inverting colours actually do?
Inverting replaces every channel value with its opposite on the 0–255 scale: a red of 30 becomes 225, black (0) becomes white (255), and so on. The result is a photo negative — the same image with light and dark, and every hue, swapped for its complement. Run the tool a second time and you get the original back, because inverting twice cancels out.
Why would you invert a PNG?
Common reasons include turning a dark-on-light diagram into a light-on-dark version for a dark-themed slide or site, recovering a readable image from a scanned film negative, creating high-contrast or artistic effects, and quickly checking how a graphic reads when its tones are reversed.
Is this invert tool free and private?
Yes. It's completely free with no signup, and the image is processed entirely on your device — nothing is uploaded.
Frequently asked questions
- Does inverting keep PNG transparency?
- Yes. Only the colour channels are inverted; the alpha channel is left alone, so transparent areas stay transparent.
- How do I undo the inversion?
- Invert the result again. Because inversion is its own opposite, applying it twice restores the original colours exactly.
- Is inverting the same as grayscale?
- No. Grayscale removes colour and keeps brightness; inverting keeps colour but flips every value to its opposite, producing a negative.
- Do you upload my image?
- No. Everything happens in your browser — your file is never uploaded, stored, or seen by us.