hey so im trying to make a sig of just someone's name, with an outer glow that fades in and out, but also being borderless, how can this be done? i cant figure it out, they always have that white border when uploaded

Use "save for web" when you're saving/exporting it and turn off the matte color (that's what makes it have a white/black/x color outline)
If you do this though, the edges will be very rough because .gif doesn't do good with half (incomplete) pixels, so that's why it fills the space with white (or the matte color)

This +1

i will give you the answer

dont do this