Pixelfix: Remove the black edges on scaled images

I ran into this issue today and it’s driving me insane.

Roblox just needs to fix their image interpolation algo.


Thanks! Found this web based version from XAXA Fixing images in Roblox ui (black outlines) - #13 by XAXA

My computer won’t let me run the shortcut…

Press “More Info” then press “Run Anyway”

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My brain is really having a hard time wrapping its head around how to install pixelfix. do you have a video showing how to install and set it up? thanks!

I don’t have a video, sorry.

If you’re on windows:

  1. Go to this link
  2. Download this
  4. Open your Downloads folder. Right click pixelfix-win-x64, then click “Copy”.
  5. Minimize all of your windows. Right click on your desktop, the click “Paste”.
  6. It’s now “installed”!

To use Pixelfix:

  1. Drag images onto the pixelfix-win-x64 icon on your desktop
  2. It will open a window to tell you that your image is fixed
  3. You can close that window and upload your fixed images to Roblox now!

Thanks, but when i put an image in there, its stuck like this.

Any solutions?

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I’m not sure why it would do this. Occasionally it can take a few seconds to start up, so that could be all it is.

If you can’t get Pixelfix to work, there are other alternatives in this thread that work through your web browser.

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If you are using pixelfix on a large image it might take a while to finish, just wait a bit and see if it works!


I have the same issue as @Nezuo . The javascript one you linked still results in black outlines too.

The same issue occurred for me, waited a bit and it worked

Arguably the best, the gimp solution is not working for me but this works now look at this

It has no black outlines!

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Can anyone send me an image that reproduces alpha bleeding? I’ve been implementing a JavaScript alpha bleed solution in my workflow for several years. (Credit: XAXA)

Recently when installing PixelFix, I was completely unable to create an image with Alpha Bleeding issues.
In months previous, when using “Save as” or “Export as” to PNG from Photoshop, it resulted in alpha bleeding when scaled.

(256Px Photoshop, 256Px PixelFix, 64Px Photoshop, 64Px PixelFix)

Obviously, I would love to not have to use any Alpha Bleed fix whatsoever, if it’s no longer needed! :smiley:


Do you have any tutorial for doing this on MacOS?

Over three years later and this is still saving lives. Thank you!

On the left was before and on the right is after. Night and day difference.

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Thanks for this amazing tool! I hope it will get added into roblox one day (I know it propably won’t be) as an option in the builk importer it would be very useful

It broke, please fix! (cmd bar just pops up and nothing happends)


It’s actually working it just asks you to press a key and then it exit the code and the image is modified
edit: I just release if it takes a long time it’s normal just wait ^^


GOAT!! I use this literally every single day when importing my UI designs, truly a life saver when it comes to having clean edges!! :sob: :heart_eyes: :heart_eyes:

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how long did you wait? Having the same issue.