Webbing is typically cut with a 90 degree, “square” cut. But there’s no real reason to do this.

Instead, cut your webbing at a 45° angle. This gives you a bit of a pointy end, making easier to tie any sort of a rewoven knot, like a water knot or a double fisherman’s.

Making this angled cut is a lot easier at a climbing store that has one of those nifty hot knife tools. Just ask them to do it for you, even if they give you a funny look.

If you don't have a climbing store with a hot knife, you can do it at home. Put the webbing on a piece of scrap wood. Get a cheap utility blade (or hold a razor blade in pliers) and heat it up over a gas stove for about 15 seconds. Make your cut. The hot blade should cauterize the wedding just like the climbing store knife.

(Don’t use a good quality knife for this, because you're probably gonna get some melted webbing gunk on it that will be quite hard to remove. Ask me how I know this . . .)

Lacking this, you can always use a good pair of scissors. After you make the cut, burn the ends in a flame of some kind for a few seconds, and then give the ends a quick squeeze with needle nose pliers to press the melted ends together.

Below - 90 degree “normal” cut on left, 45 degree cut on right.