There might be a few platforms that offer some free crypto earning opportunities without requiring a deposit or referrals, although they may have certain limitations or conditions. Keep in mind that the crypto space is often associated with risks and scams, so it's crucial to thoroughly research any platform before engaging with it. Some options you might explore include:

Faucet Websites: These websites offer small amounts of cryptocurrency for completing simple tasks or captcha. However, earnings are usually very low, and it might take a while to accumulate enough for a withdrawal.
Crypto Mining Pools: Some mining pools allow you to join and contribute your computing power to mine cryptocurrencies. While this doesn't require a deposit, it does require hardware and energy costs, and the earnings might not be significant without substantial resources.
Airdrops and Bounty Programs: Occasionally, crypto projects distribute free tokens through airdrops or bounty programs. Participating in these might not require a deposit, but it often involves tasks like social media promotion, content creation, or community engagement.
Crypto Gaming Platforms: Some gaming platforms reward players with cryptocurrency for playing games or achieving certain milestones within the games. These platforms might offer free tokens or rewards that can be withdrawn without deposits.
Remember to be cautious and skeptical of platforms that promise high returns or require sensitive information without a clear explanation of their business model. It's always wise to do your due diligence and consider the risks involved before participating in any crypto-related activities.

There are a few reputable crypto earning websites that allow you to earn cryptocurrency without making a deposit or providing referrals. However, it's important to be cautious when using these platforms as some may have questionable practices or be scams. Always conduct thorough research before using any service. Here are a few platforms you might consider:

Cointiply: Cointiply is a website that offers various ways to earn Bitcoin, such as watching videos, playing games, and completing surveys. You can withdraw your earnings without making a deposit.
FreeBitco.in: FreeBitco.in is a website where you can earn free Bitcoin through a faucet (a small amount every hour). You can also play games and participate in promotions to earn more.
CryptoTab Browser: CryptoTab Browser is a browser that allows you to mine Bitcoin while you browse the internet. You can withdraw your earnings without a deposit.
Pi Network: Pi Network is a mobile-based app that allows you to mine Pi cryptocurrency using your phone. While Pi Network doesn't require a deposit, it operates differently from traditional crypto earning sites, and the value of Pi is still uncertain.
Remember to use these websites cautiously, as there are many scams and illegitimate platforms in the crypto space. Verify the legitimacy and reputation of any platform you use, and ensure you understand the risks involved. Additionally, be mindful of withdrawal thresholds and fees, as some platforms may impose limits on how much you can withdraw at a time or charge high fees for transactions.