What is the best crypto exchange for altcoins?

There's no single "best" — it depends on whether you want the widest altcoin selection, the lowest fees, or the most liquid/deep market. Here's how the top candidates compare on the things that actually matter for altcoins.

For the widest altcoin selection — KuCoin and MEXC are the traditional picks for listing long-tail and newly-listed altcoins (often before the bigger exchanges). KuCoin is the older, more established of the two; MEXC pairs its broad listings with the cheapest fees in the group. KuCoin — 0.1%/0.1% fees, trust score 9 (per CoinGecko), serving non-US users. Great altcoin depth, especially small/mid-caps. MEXC — 0% maker / 0.05% taker, trust score 9 (per CoinGecko). Cheapest of the group and a very broad listing catalog — a strong default for cost-efficient altcoin trading.

For liquidity and size — Binance has the deepest order books and highest trust score, but stricter listing standards, so you'll find fewer long-tail altcoins there. Its edge is trading the more established alts without slippage. Binance — 0.1%/0.1%, trust score 10 (per CoinGecko), by far the largest 24h volume (~120K BTC). Best for liquid, established altcoins.

For a middle ground — Bybit combines solid liquidity with a reasonably broad altcoin roster. Bybit — 0.1%/0.1%, trust score 9 (per CoinGecko), ~30K BTC 24h volume.

A practical way to think about it: if you're chasing new/small altcoins and want low fees → MEXC. If you want a balance of breadth and reputation → KuCoin. If you're trading well-known alts and need deep liquidity → Binance.

One caveat worth noting: none of these serve US-based users (except Binance's non-US entity), and all are basic-KYC. All four are strong — this isn't financial advice, just the trade-offs to weigh for your own situation.

Want me to narrow this down by your region or check which of these actually lists a specific altcoin you have in mind?

Also tracked: OKX, Bitget.