Move a photo toward a color negative without uploading

Pick light, medium or full, then download PNG or JPG. Light keeps a hint of the original. Full flips every color. The work runs in this tab.

Runs in your browser Free No sign-up
  1. Choose file
  2. Set options
  3. Get result

Your file never leaves your device. Processed locally in your browser. Nothing is uploaded. Location and camera metadata (EXIF) are removed from the result.

Light moves each color 40% of the way to its opposite. Medium moves 70%. Full flips every color. Width and height stay the same. PNG keeps transparency. JPG fills empty pixels with white. Camera location is not copied.

How to invert an image

1. Drop a photo you already have. A video or an audio file is refused here. 2. Leave full, or pick light or medium. 3. Leave PNG, or pick JPG. 4. Press “Invert image” and download.

GustKit moves each red, green and blue channel toward 255 minus itself. Light moves 40% of the way. Medium moves 70%. Full lands on the opposite color, so black becomes white and a bright red becomes cyan. Width and height stay the same. PNG keeps transparency. JPG fills empty pixels with white. Camera location is not copied.

A mix, then a full flip

Invert colors always flips 100% and can also save WebP. This page stops partway when you want the original still visible, and it saves PNG or JPG. Grayscale throws the hues away. Sepia pushes them toward brown. A video belongs on Invert video colors.

The photo stays in this tab

The canvas of this browser does the math. GustKit does not fetch a photo from a link. Close the tab and the file is gone. Photos up to the limit shown next to the button.

How to check the negative

1. Open the original and the download at the same zoom. 2. On Full, a bright red should turn cyan. 3. On Light, the red should still look reddish. If the size changed, you opened a different page.

Invert colors always flips 100% and can save WebP. This page can stop at 40% or 70% and saves PNG or JPG. Nothing is uploaded.

Frequently asked questions

A red pixel went cyan and the size stayed. Did it work?

Yes, on Full. Light and medium stop before the opposite color. Width and height stay the same.

Why is there no WebP?

This page saves PNG or JPG. Invert colors is the page that also writes WebP, and it always flips 100%.

Can I invert a photo and also make it grayscale in one step?

No. Invert it first, or make it grayscale first, then open the other page on the download.

Is the photo uploaded?

No. The mix runs in this tab.

The red turned cyan and the size did not change. Did it work?

Yes, on Full. Light moves 40% of the way. Width and height stay the same.

Can I invert a photo and also add a border in one step?

No. Invert it first, or add the border first, then open the other page on the download.