YouTube has launched its Remixer tool, which is available on TestTube. Check it out here. The remixer lets you add effects and graphics, text and audio, overlays and transitions to your YouTube videos, directly in your browser. The remix tool is powered by Adobe. It’s the same as Photobucket’s Remix tool, which is also powered by Adobe. So if you’ve become a pro with the Photobucket remixing tool, you’ll have no trouble with YouTube’s.