What is the safest free VPN?

I'm curious to know, what is considered the safest free VPN available on the market today? With so many options out there, it's hard to discern which ones truly prioritize user privacy and security. Are there any specific features or protocols that I should be looking for when evaluating a free VPN's safety? Additionally, are there any known risks or limitations associated with using a free VPN that I should be aware of? I'm looking for a reliable solution that won't compromise my online safety or put my personal information at risk.