Where can I find reliable historical Bitcoin data with 1-minute granularity?

Hi everyone,
I’m working on a project where I need high-resolution historical Bitcoin data (1-minute granularity) for backtesting and analysis. I’ve tried a few platforms, but either the data isn’t detailed enough, or the websites are overly complicated to use. Does anyone know of a reliable source where I can download this kind of data for free? Ideally, it should support multiple exchanges and be easy to use. Thanks in advance for your suggestions!