I just reviewed the options available for practicing trading without risking real money, and honestly, there is quite a variety depending on what you're looking for. It's not the same as a stock simulator and a demo account, although many confuse them.

Stock simulators are mainly educational tools, usually developed by finance-focused websites. They allow you to get a feel for trading, but without the full complexity of a real platform. In contrast, broker demo accounts are virtually identical to what you'd use with real money: same tools, same assets, same execution speed.

To train properly, the best approach is to use both. First, learn the basics with a simulator, then practice with the broker's demo account that you'll actually use. Some brokers even let you switch between virtual and real accounts at any time, which is quite useful.

Regarding which assets you can practice with, it depends on where you practice. Basic simulators offer stocks, indices, and forex. Serious broker demo accounts also give access to cryptocurrencies, CFDs, ETFs, and commodities. If you're looking for the best free stock simulator that is serious, you need to verify that it offers a sufficient variety of instruments.

I've tried several, and these five stand out to me. MyTrade has an unlimited demo account with $50,000 virtual dollars, accessible via web and mobile, and you can practice with CFDs on thousands of assets. The good thing is that it doesn't limit your time, so you can practice as long as you need. MarketWatch has a simulator called Virtual Stock Exchange that is quite straightforward: register for free and start building portfolios. IG is one of the oldest and most reputable brokers, offering demo accounts with access to MetaTrader and many educational resources. HowTheMarketWorks is probably the most focused on education, training half a million students a year and giving you $100,000 virtual dollars to experiment with. eToro is famous for its social approach; the demo account lets you see how copy trading works and view other traders' panels, which is useful if that's your strategy.

Now, there's a catch to all this. When you have virtual money that isn't yours, you're more likely to invest more riskily than you would with your own capital. This is called the euphoria of fake money. Also, demo accounts give you tens of thousands of dollars, but when you trade with real money, you'll probably have much less, so you'll need to be more selective.

Another issue is that some brokers limit the demo account to 30 days, which pressures you to switch to real money before you're ready. That's why I prefer platforms that have no time limit.

If you're going to use a demo account properly, you need to take it seriously. Even though it's fake money, track everything as if it were real, because otherwise, you're not learning anything valuable. Experiment with strategies you've never tried before, but use the tool to learn, not as a casino. Combine practice with real education—reading, watching analysis, studying. The best free stock simulator only works if you pair it with education.

What's interesting is that demo accounts aren't just for beginners. Professional managers also use simulators before executing live trades. So, no matter your level, there's always room to practice.

The reality is that among the options available today, there are quite solid choices without spending a dime. Pick one that fits what you want to learn, dedicate real time to it, and you'll see how your confidence improves before risking your own money.