If you're looking for an easy way to build a diversified portfolio, then ASX exchange-traded funds (ETFs) could be the answer.

ETFs allow investors to gain exposure to a wide range of shares, sectors, or even asset classes without having to pick individual stocks. This makes them a popular choice for both beginner and experienced investors.

But with so many ETFs available on the ASX, it can be difficult to know which ones to choose. To help narrow things down, let's look at five of the best ASX ETFs out there to buy in February. They are as follows:

iShares S&P 500 ETF (ASX: IVV)

A great option for investors seeking broad exposure to the U.S. stock market is the iShares S&P 500 ETF. This ASX ETF tracks the performance of 500 of the largest companies on Wall Street, covering a diverse range of industries. By investing in the iShares S&P 500 ETF, you gain access to global giants like Apple (NASDAQ: AAPL), Microsoft (NASDAQ: MSFT), Walmart (NYSE: WMT), and Exxon Mobil (NYSE: XOM). Given the strong historical performance of the S&P 500, this ETF could be a solid long-term investment.

BetaShares Global Cash Flow Kings ETF (ASX: CFLO)

For those looking for companies with strong financial fundamentals, the BetaShares Global Cash Flow Kings ETF could be a great pick. This ASX ETF focuses on companies that generate high levels of free cash flow—an indicator of financial health and resilience. Free cash flow leaders, such as Alphabet (NASDAQ: GOOG) and Visa (NYSE: V), have historically outperformed the market over time. BetaShares has recommended this ETF, highlighting its potential as a core holding for global equities exposure.

BetaShares Global Cybersecurity ETF (ASX: HACK)

With cyber threats on the rise, the cybersecurity industry is becoming an increasingly vital part of the global economy. The BetaShares Global Cybersecurity ETF provides investors with exposure to leading cybersecurity companies, an industry that McKinsey estimates to be worth up to $2 trillion globally. As digital security becomes more critical for businesses and governments, the companies held by this ASX ETF could benefit from long-term structural tailwinds.

Vanguard MSCI Index International Shares ETF (ASX: VGS)

If you're looking for global diversification beyond the Australian market, the Vanguard MSCI Index International Shares ETF could be a great choice. This ASX ETF provides exposure to approximately 1,500 of the world's largest companies (excluding Australian stocks), offering instant diversification across industries and regions. It could be particularly useful for investors who may already have heavy exposure to local stocks and want to spread risk across global markets.

BetaShares S&P/ASX Australian Technology ETF (ASX: ATEC)

Finally, for investors who believe in the long-term growth of the tech sector, the BetaShares S&P/ASX Australian Technology ETF could be worth considering. This ASX ETF focuses on Australia's leading tech companies, including Xero Ltd (ASX: XRO), TechnologyOne Ltd (ASX: TNE), and Pro Medicus Limited (ASX: PME). As AI, cloud computing, and automation continue to evolve, the Australian tech sector could see strong growth. BetaShares recently highlighted ATEC as one to buy, citing the transformative potential of emerging technologies over the next decade.