Is Uniswap just for Ethereum?

Excuse me, I've been hearing a lot about Uniswap recently, and I'm trying to understand its scope and functionality. Could you please clarify something for me? Is Uniswap strictly limited to Ethereum, or does it have the potential to operate on other blockchain platforms as well? I'm particularly interested in exploring the possibilities of decentralized exchanges beyond Ethereum, and I'm wondering if Uniswap could be a part of that. Thank you for your time and assistance in clarifying this matter for me.