6 Best Instant Crypto Swap Services in 2026
The best instant crypto swap services in 2026 compared on fees, coins supported, KYC rules and custody. See FixedFloat, Changelly, ChangeNOW, SimpleSwap, StealthEX and Exolix.
By Jonathan West · Updated July 2026
Finding the best instant crypto exchange comes down to comparing fee models, coin counts, KYC policies, and custody terms across providers. This comparison evaluates six services to help you swap crypto instantly. We evaluate each provider based on published fee structures, asset selection, account requirements, and wallet custody models. Custody terms differ: ChangeNOW, for example, offers an optional custodial Pro account next to its non-custodial swaps. Platform terms, coin lineups, and verification rules change over time, and all details in this guide reflect vendor publications as of Oct 2026.
Learn what KYC means before you pick a swap service
FixedFloat
Best for: Best for stated fixed and floating fee percentages
FixedFloat operates as an instant crypto exchange with published rates. It charges 1.0% for fixed transactions and 0.5% for floating swaps. The service requires no registration or personal details, and its FAQ states that it does not hold your funds.
Strengths
Stated 0.5% floating fee and 1.0% fixed fee
No registration or personal details required
FAQ confirms it does not hold your funds
Limitations
Total coin count not stated beyond roughly 70 entries
Minimum and maximum transaction limits are not published
Pricing: 1.0% fixed rate; 0.5% floating rate
Changelly
Best for: Best for a stated fee and published KYC thresholds
Changelly is an instant crypto exchange supporting over 1000 cryptocurrencies and published exchange caps. Its website advertises crypto exchange fees of up to 0.25%. Basic KYC requires a passport with transactions capped at 10,000 EUR per 48 hours, and Changelly states that it does not store cryptocurrencies.
Strengths
Published crypto exchange fee of up to 0.25%
Coverage spanning over 1000 cryptocurrencies
Clear basic KYC limit of 10,000 EUR per 48 hours
Limitations
Full fee schedule is not published on the page
Services are unavailable to users in Hong Kong
Pricing: Up to 0.25% on crypto exchanges, per its page
ChangeNOW
Best for: Best for wide coverage with no account for swaps
ChangeNOW serves as an instant crypto exchange covering 1000+ assets across 110+ blockchains. Standard crypto swaps require no account or registration, with all costs included in the displayed exchange rate. Automated risk systems check transactions under European AML rules and can request an ID scan and fund origin details.
Strengths
Supports 1000+ assets across 110+ blockchains
No registration or account required for regular swaps
Minimum crypto-to-crypto swap of $2
Limitations
Specific swap fee percentage is not published
Risk checks may request ID and source-of-funds information
Pricing: Fees included in the rate; no percentage stated
SimpleSwap
Best for: Best for the longest coin list
SimpleSwap aggregates liquidity across more than 20 centralized and decentralized exchanges to offer 2,800+ cryptocurrencies. It provides both fixed and floating rates across its supported pairs. SimpleSwap may request identity or source of funds information in select cases.
Strengths
Extensive catalog of 2,800+ cryptocurrencies
Aggregates 20+ centralized and decentralized platforms
Provides both fixed and floating exchange options
Limitations
No swap fee percentage published on its FAQ page
Certain geographic regions are restricted by its terms
Pricing: No swap percentage published; network fees apply
StealthEX
Best for: Best for card purchases alongside swaps
StealthEX lists over 2000 coins and tokens with no user registration or account creation required. The platform operates on a non-custodial model that holds no user funds. It enables card purchases through third-party partners without KYC up to $700, while requiring identity verification above that threshold.
Strengths
Over 2000 coins and tokens available for swaps
Non-custodial architecture that holds no customer assets
Card purchases require no KYC up to $700
Limitations
Exact swap fee percentage is not published
An exchange fails if the rate moves more than 5% during processing
Pricing: Network fee plus possible provider fees; no percentage stated
Exolix
Best for: Best for a fixed rate with no maximum limit
Exolix pools liquidity from over 50 centralized exchanges across thousands of tokens on 200+ blockchains. Its FAQ states that it requires no registration, no personal data, and enforces no maximum transaction limits. Swaps process with zero extra fees beyond the initial rate, fixing your output from the start.
Strengths
Zero extra fees stated beyond the displayed rate
No registration, no personal data, and no upper limits
Covers thousands of tokens across 200+ blockchains
Limitations
Specific exchange fee percentage is not stated
Processing usually takes between 5 and 30 minutes
Pricing: Zero extra fees stated; no percentage given
Summary comparison
| Option | Fees | Coins supported | Account and KYC | Custody model |
|---|---|---|---|---|
| FeaturedYour company here, pinned above every listing Get featured → | ||||
| FixedFloat | 1.0% fixed rate; 0.5% floating rate | About 70 listed; total not stated | No registration; no personal details, per its FAQ | States it does not hold your funds |
| Changelly | Up to 0.25% on crypto exchanges, per its page | 1000+ cryptocurrencies | Basic KYC needs a passport; 10,000 EUR per 48 hours cap | States it does not store cryptocurrencies |
| ChangeNOW | Fees included in the rate; no percentage stated | 1000+ assets, 110+ blockchains | No account for swaps; ID may be requested after risk checks | Non-custodial swaps; optional custodial Pro account |
| SimpleSwap | No swap percentage published; network fees apply | 2,800+ cryptocurrencies | No account for most swaps; KYC may be requested | Self-custodial, per its FAQ |
| StealthEX | Network fee plus possible provider fees; no percentage stated | 2000+ coins and tokens | No account; card purchases need KYC above $700 | Non-custodial; holds no user funds |
| Exolix | Zero extra fees stated; no percentage given | Thousands of tokens on 200+ blockchains | No registration or personal data, per its FAQ | Non-custodial; no deposit storage |
| SideShift.ai | Not published | 300+ coins | Not published | Sends swapped coins directly to your wallet |
| Swapzone | No Swapzone fee stated; partner and network fees built into rate | 1000+ cryptocurrencies, 18+ partner exchanges | No Swapzone account needed; partner KYC not described | Non-custodial aggregator; swap runs on partner exchange |
| Houdini Swap | No fees on top of exchange partners | 120+ chains; Private Swap lists 13 coins | No account or KYC required | Non-custodial; says it does not hold user assets |
| GhostSwap | Not published; shown as all fees included | 1,600+ coins | No account, email or ID upload | States it holds no balances |
| SwapRocket | Small fee built into rate; no percentage published | 700+ cryptocurrencies | No account for standard swaps; flagged transactions may be held | Non-custodial; says it stores no funds |
| WizardSwap | Not published | 12 coins listed, including Monero, Zcash, Firo | No registration | Not published |
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Swap Service Choice by Fees and KYC
Choosing the best instant crypto exchange depends on how you weigh fee transparency against identity verification rules and asset coverage. There is no single universal option that fits every transaction size and currency preference. If your primary goal is finding an exchange with explicitly stated fee percentages, FixedFloat offers a 0.5% floating fee and a 1.0% fixed rate, while Changelly advertises exchange fees of up to 0.25%. If you want to start a swap without opening an account, ChangeNOW, SimpleSwap, StealthEX and Exolix describe doing so. Identity verification rules form the second major dividing line when you swap crypto instantly. Changelly requires a passport for basic KYC with a 10,000 EUR limit per 48 hours, whereas FixedFloat and Exolix state in their FAQs that they do not require registration or personal details. ChangeNOW's standard swaps and most SimpleSwap swaps need no account, but their automated risk checks can trigger requests for an identity document scan and fund origin information. StealthEX permits fiat card purchases without verification up to $700 per user, while above that amount all of its providers require KYC. Custody models and catalog depth complete the selection process. FixedFloat, Changelly, StealthEX, and Exolix state that they do not hold or store user funds. For asset variety, SimpleSwap lists over 2,800 cryptocurrencies across 20+ liquidity sources, StealthEX supports 2000+ assets, and ChangeNOW provides 1000+ tokens across 110+ blockchains. Other providers exist across the wider market.
Fixed Rate Versus Floating Rate
FixedFloat charges 0.5% for a floating rate. StealthEX notes in its FAQ that an exchange fails if the rate moves more than 5% up or down during processing. ChangeNOW's FAQ defines a fixed rate exchange as one performed at the rate displayed at the start. FixedFloat charges 1.0% for a fixed rate. SimpleSwap offers both fixed and floating rates across its trading pairs. Exolix operates entirely on a model where the rate fixes at the start of the transaction, advertising zero extra commissions beyond the quote displayed during order creation.
Fees and KYC Compared
Exchange fee models differ between services that state a set percentage and platforms that include fees in the displayed rate. FixedFloat lists explicit costs of 0.5% for floating transactions and 1.0% for fixed transactions. Changelly advertises fees of up to 0.25% on crypto exchanges, though its home page does not provide a comprehensive fee schedule. Meanwhile, ChangeNOW, SimpleSwap, StealthEX, and Exolix do not publish specific swap fee percentages on their primary documentation pages. Identity verification policies also divide these platforms into distinct compliance categories. Changelly requires basic KYC involving a passport scan to unlock trading volume up to 10,000 EUR every 48 hours, requiring advanced verification for higher thresholds. ChangeNOW uses an automated risk management system following European AML directives that may ask for an ID scan and information on the origin of funds. SimpleSwap similarly notes in its FAQ that it may request KYC and source-of-funds details in specific cases, even though most standard swaps execute without an account. FixedFloat's FAQ confirms that users face no registration and no requests for personal details, while Exolix states that it requires no personal data and enforces no maximum transaction caps. StealthEX bridges both models by listing card purchases through Mercuryo, Simplex and Guardarian without KYC up to $700 per user, with KYC required above that.
Coins and Custody
Asset catalogs and custody models dictate how each swap service handles your desired token route. SimpleSwap lists over 2,800 cryptocurrencies and 3.2 million trading pairs by aggregating liquidity from more than 20 centralized and decentralized exchanges. StealthEX features 2000+ coins and tokens, while Changelly and ChangeNOW each support over 1000 cryptocurrencies, with ChangeNOW explicitly detailing support for 110+ individual blockchains. Exolix covers thousands of tokens spanning 200+ blockchains, whereas FixedFloat displays a currency list showing roughly 70 entries without stating a grand total. Each vendor describes custody in its own words. FixedFloat explicitly states on its website that it does not hold customer funds. Changelly states that it does not store cryptocurrencies, forwarding converted funds to the user's provided wallet address upon completion. SimpleSwap defines its workflow as self-custodial, routing tokens directly to the address you supply without holding user deposits. StealthEX confirms that it holds no user funds during exchanges, and Exolix notes a non-custodial architecture with no deposit storage. ChangeNOW provides a dual structure, running standard swaps non-custodially while offering an optional custodial ChangeNOW Pro account.
The verdict
The best instant crypto exchange depends on whether you require stated fee percentages or maximum token availability. FixedFloat fits users seeking stated fee percentages with its published 0.5% floating and 1.0% fixed fees and no account requirements. Changelly advertises fees of up to 0.25% and asks for a passport at basic KYC. For broad coin variety without an account, SimpleSwap lists 2,800+ assets, while StealthEX and Exolix provide non-custodial swaps with no registration requirements.
Frequently asked questions
What is the best instant crypto swap service?
There is no single best service for every user because requirements differ across fees, asset selection, and verification rules. FixedFloat fits if you want published fee percentages of 0.5% floating and 1.0% fixed with no registration. Changelly advertises fees of up to 0.25% and asks for a passport at basic KYC, while SimpleSwap provides over 2,800 cryptocurrencies.
Do instant swap services charge a fee?
Fee models vary by service. FixedFloat publishes rates of 0.5% for floating swaps and 1.0% for fixed swaps, while Changelly advertises crypto exchange fees of up to 0.25%. Other platforms like ChangeNOW, SimpleSwap, StealthEX, and Exolix do not publish exact fee percentages.
Do I need to verify my identity to swap crypto?
Identity verification requirements depend on the platform and transaction details. Changelly requires a passport for basic KYC to trade up to 10,000 EUR every 48 hours. FixedFloat, ChangeNOW, SimpleSwap, StealthEX, and Exolix allow users to initiate standard crypto swaps without creating an account, though ChangeNOW and SimpleSwap reserve the right to trigger risk-based KYC checks on flagged transactions.
Do swap services hold my funds?
Each vendor describes custody in its own words. FixedFloat, Changelly, SimpleSwap, StealthEX, and Exolix state that they do not hold or store user funds. ChangeNOW processes standard swaps without holding funds, though it also offers an optional custodial Pro account service.
What is the difference between a fixed and a floating rate?
ChangeNOW's FAQ defines a fixed rate exchange as one performed at the same rate displayed at the beginning of the exchange, regardless of later rate fluctuations. FixedFloat charges 0.5% for floating rates and 1.0% for fixed rates, while Exolix fixes the exchange rate at transaction creation.
Sources
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