How is this ranking made?
Every option below is scored on the same three attributes: who holds your coins during the swap (custody), what you pay (fees) and how your rate is set (rate mechanism). Rate quality is measured one way throughout: by the amount you receive after all costs, not by the headline fee. The order reflects a self-custody swap between tokens that trade on-chain, and it is an editorial judgment based on those attributes, not a paid placement. If you are buying crypto with dollars or euros instead, start at option three: centralized exchanges are still the practical bridge from bank money.
1. DEX aggregators: one quote across many venues
An aggregator hosts no liquidity of its own. It reads prices across many DEXes and routes your swap along the best path it finds, splitting the amount across pools when that improves the outcome. For popular pairs the venues sit close together; for long-tail tokens and larger sizes, routing quality shows up directly in the amount received. 1inch works this way: an aggregation protocol quoting competitive rates, aggregated across 300+ sources, while your tokens stay in your wallet until the swap settles. On intent-based swaps, professional fillers called resolvers settle the order on-chain, pay the settlement gas and keep it away from MEV bots. How a DEX aggregator routes a swap is its own guide.
- Custody
- Self-custody. Tokens leave your wallet only in the settlement transaction
- Fees
- Pool fees along the route are in the quote; on intent-based 1inch swaps the resolver pays the settlement gas
- Rate mechanism
- Aggregated: prices compared across hundreds of on-chain sources for each quote
Fits best when you already hold tokens on-chain and want rate quality without giving up custody. For wallet-to-wallet swaps this is the strongest default, which is why it ranks first. If a pair is so exotic that no on-chain route exists, drop to option four.
2. Single DEXes: swap straight against a pool
Swapping directly on one DEX is the most direct on-chain route and works well when you know where a pair's deepest pool lives. The trade-off is field of view: one venue quotes only its own pools, so you cannot see whether another venue would fill the same swap better. Going direct also teaches the mechanics: approvals, pool choice and price impact are all visible without an abstraction in front of them. Fees depend on the pool: Uniswap v3 tiers, for example, run from 0.01% to 1% per swap. New to the model? Start with what a decentralized exchange is.
- Custody
- Self-custody. The pool contract moves tokens only inside the swap transaction
- Fees
- The pool's fee tier plus network gas, both paid by you
- Rate mechanism
- One venue's pool formula; price impact grows with swap size
Fits best when the pair's canonical pool lives on that venue, you already provide liquidity there or you want the fewest moving parts.
3. Centralized exchanges: deep books behind an account
Centralized exchanges remain the deepest spot markets and the main bridge between bank money and crypto. Per their published schedules, the base spot fee is 0.1% per trade on Binance and 0.04% to 0.60% taker across Coinbase Exchange volume tiers, and CoinGecko's 2026 report still measured more than $1 trillion in monthly spot volume on centralized venues. The structural difference is custody: deposited coins sit in the exchange's wallets until you withdraw, and withdrawal carries its own fee. Withdrawal is the step many first-time buyers skip; coins left on the venue live in its account system, not in your wallet.
- Custody
- The exchange holds deposited coins until you withdraw them
- Fees
- A spot fee per trade (0.1% base on Binance) plus a withdrawal fee to move coins on-chain
- Rate mechanism
- Central limit order books with maker and taker pricing
Fits best when you are converting between cash and crypto or need order-book depth for large size. Depth is also why very large trades often run in stages rather than as one order.
4. Instant exchange services: send coins, receive coins
Services such as SimpleSwap and ChangeNOW convert one coin into another: you provide a payout address, send coins to a one-time deposit address and receive the converted amount. Coverage is the draw: SimpleSwap lists 2,800+ currencies and ChangeNOW more than 900, per their sites, including assets with no on-chain markets. The flow difference matters too: your coins pass through the service mid-swap rather than moving wallet to wallet in one transaction. The costs sit inside the quote, and a fixed-rate quote carries a reserve premium that ChangeNOW's own guide puts at roughly 0.5% to 1% over the market rate.
- Custody
- The service controls the deposit address while the conversion runs
- Fees
- Built into the quoted rate; fixed quotes include a reserve premium of roughly 0.5% to 1% (ChangeNOW's guide)
- Rate mechanism
- Quotes from the service's partner venues; floating quotes can change until your deposit confirms
Fits best when an asset has no on-chain market you can reach or you are converting across chains without wallets set up on both sides.
What do all four options have in common?
- Every route shows a quote before you commit, and the quote is where the costs hide
- Every route has a cost, even when no fee line is visible: margins, pool fees, gas or withdrawal charges
- The amount received is the only number that compares all four fairly, so judge quotes by it
Which option fits your situation?
- You hold tokens in a wallet and want a competitive rate for an on-chain pair: use an aggregator
- You are buying crypto with a card or a bank transfer: start on a centralized exchange, then withdraw to your own wallet
- You are moving value between two chains: compare a cross-chain swap on 1inch with an instant exchange quote
- You need one specific pool, or you already work on that venue: go to the DEX directly
Moving between networks has its own mechanics and its own guide: how cross-chain swaps work in one flow.
Compare what you actually receive, not the headline fee. A quote already nets the rate, the venue's margin or pool fee and, for on-chain swaps, gas. Aggregators automate that comparison across venues; for cash purchases, add the exchange's spot fee and the withdrawal cost before judging.
It is convenient, and the convenience is priced in: wallet swap features usually route through aggregation and add their own service fee. MetaMask, for example, factors a 0.875% fee into each swap quote, per its help center. Whatever the app, read the fee line before confirming.
Yes. On intent-based 1inch swaps the resolver that fills your order settles it on-chain and pays the gas for that settlement. You approve the quoted rate and the minimum received before signing, so the costs are visible up front.
The attributes are stable; the numbers move. Fee schedules, listings and liquidity depth shift, which is why every figure on this page names its source and the page shows the date it was last updated.
Start with the ranked-first option
Swap from your own wallet with competitive rates, aggregated across 300+ sources.
