Market selloffs may be unnerving, but for long-term focused investors, they present one of the best opportunities to buy quality stocks at a discount.

Some of the world's greatest investors, including everyone's favourite – Warren Buffett, have built their fortunes by capitalising on temporary market downturns. And there's nothing to stop you from doing the same, even if you don't like stock picking.

That's because rather than trying to pick individual stocks, investors can take advantage of falling prices through exchange-traded funds (ETFs) that focus on high-quality businesses.

These ASX ETFs provide instant diversification and exposure to proven companies with strong competitive advantages. If you're looking to buy the dip, here are three quality-focused ASX ETFs to consider right now.

Betashares Australian Quality ETF (ASX: AQLT)

If you're looking for high-quality Australian stocks at lower prices, the Betashares Australian Quality ETF could be a great pick. It was recently tipped as a buy by the fund manager.

This ASX ETF tracks an index of top-tier ASX-listed companies that score well on key quality metrics, including high return on equity (ROE), strong balance sheets, and consistent earnings growth.

Historically, companies with these characteristics tend to outperform over the long term, especially once market conditions stabilise. By buying during a market downturn, investors can get exposure to some of the Australian share market's best businesses at lower valuations.

Betashares Global Quality Leaders ETF (ASX: QLTY)

For those looking beyond Australia, the Betashares Global Quality Leaders ETF provides access to a hand-picked selection of global companies with outstanding fundamentals.

This ASX ETF invests in world-class businesses with high return on equity, low debt-to-capital, strong cash flow generation, and earnings stability. Companies boasting these traits tend to weather economic downturns well and can emerge even stronger.

The recent market selloff has pulled down valuations across the board, meaning investors now have an opportunity to gain exposure to some of the world's best businesses at more attractive prices.

Betashares also recently named this as an ETF to buy.

VanEck Morningstar Wide Moat ETF (ASX: MOAT)

Finally, another great way to take advantage of the market selloff could be through the VanEck Morningstar Wide Moat ETF.

This ASX ETF focuses on US-listed companies that have sustainable competitive advantages or wide moats.

Businesses with wide moats tend to have pricing power, strong market positions, and long-term profitability, making them well-suited for navigating economic volatility. And with Wall Street experiencing a significant pullback this month, investors can now buy into some of these top-tier companies at discounted prices with this fund.