Founded 2018 · 2,100+ reviews · Lightning Network

Swap crypto.
No account.
No KYC.

FixedFloat is a fully automatic, non-custodial exchange. Choose your coins, pick fixed or floating rate, send crypto to a generated address — and receive the result in your wallet. Three steps. No forms. Since 2018.

No registration No KYC Lightning Network Fixed 1% fee Float 0.5% fee 100+ coins $1 minimum Non-custodial
You send On-chain
Min: $1.00 equivalent
Rate typeFixed — guaranteed amount
Service fee1%
Exchange rateShown at confirmation on ff.io
Network feeIncluded in fee
You receive
Rate locked on ff.io at confirmation
✓ Fixed: exact amount guaranteed when you submit the order

Automatic exchange on ff.io · No registration · Non-custodial

🔒 Your funds are never stored. This is a bridge to ff.io — the official FixedFloat exchange.
100+
Coins
BTC LN · ETH · XMR
0.5%
Min. fee
Float rate
$1
Minimum swap
Lowest available
2018
Founded
6+ years running

Rate types

Fixed or floating.
You choose.

FixedFloat gets its name from supporting both rate models — one offering certainty, the other a lower fee. Pick based on what matters more for your swap.

🔒 Fixed Rate
%1

Guaranteed receive amount

When you create a fixed-rate order, FixedFloat locks the exchange rate. The exact amount you will receive is guaranteed from the moment you submit — regardless of price movements during the confirmation period. FixedFloat absorbs the market risk.

Large amounts where precision matters
Volatile market conditions
When you need to know exactly what you'll receive
Chains with slow confirmation times (e.g. BTC on-chain)
📈 Float Rate
%0.5

Market price at confirmation

With a floating rate, the final amount you receive is based on the live market price at the moment your transaction is confirmed. The fee is halved (0.5%) — you save on cost but accept the risk that the rate may shift during processing.

Smaller, faster swaps where fees matter
Stable market conditions
Lightning Network BTC (near-instant confirmation)
When saving 0.5% on a large volume swap matters

How it works

Three steps.
That's it.

FixedFloat is built around simplicity. No account, no dashboard, no waiting for approvals. Select, send, receive.

01

Select coins & rate type

Choose the coin you're sending and the coin you want to receive. Enter the amount you're sending. Select fixed (1%, guaranteed amount) or floating (0.5%, market price at confirmation). Enter your destination wallet address.

100+ COINS · FIXED OR FLOAT · WALLET ADDRESS
02

Send to deposit address

FixedFloat generates a unique one-time deposit address for your order. Send exactly the specified amount from your own wallet to that address. Lightning Network is supported for Bitcoin — near-instant with sub-cent fees.

ONE-TIME ADDRESS · LIGHTNING SUPPORTED · YOUR WALLET
03

Receive in your wallet

FixedFloat detects your deposit, automatically executes the swap at the agreed rate, and sends the converted amount directly to your destination wallet. The exchange is fully automatic — no manual steps after sending. Track the order status in real time.

AUTOMATIC · REAL-TIME TRACKING · NON-CUSTODIAL

Platform features

Built for
fast, private swaps.

Privacy — 01

No KYC, no registration

No email, no phone, no ID verification for standard swaps. Pick coins, enter wallet address, send. You can optionally create an account to view exchange history — but it's never required. One of the most private exchanges operating today.

NO EMAIL · NO ID · NO SIGN-UP · OPTIONAL ACCOUNT
Speed — 02

Lightning Network BTC

FixedFloat was the first instant crypto exchange to integrate Bitcoin's Lightning Network. Lightning BTC transfers complete in seconds at near-zero network fees — instead of 10–60 minute on-chain confirmations. Available on both send and receive sides.

FIRST LIGHTNING EXCHANGE · SECONDS NOT MINUTES
Custody — 03

Fully non-custodial

FixedFloat never holds your funds. Your crypto goes from your wallet to a temporary order address, gets converted, and is sent immediately to your destination wallet. No exchange wallet, no withdrawal process, no waiting for balance confirmations.

NON-CUSTODIAL · DIRECT TO YOUR WALLET
L2 support — 04

Layer-2 networks

Swap across Arbitrum, Optimism, Base, and zkSync Era — in addition to Ethereum mainnet. Also supports Solana (SOL, SPL tokens) and multiple USDT/USDC networks including TRON TRC-20 for low-cost stablecoin swaps.

ARBITRUM · BASE · OPTIMISM · ZKSYNC · SOLANA · TRON
Minimum — 05

$1 minimum

The $1 minimum swap is among the lowest available on any exchange. Whether you're testing a new wallet with a small amount or converting dust balances, FixedFloat handles any viable amount above $1 equivalent.

$1 MINIMUM · NO MAXIMUM · DUST CONVERSION
Automation — 06

API & Telegram bot

FixedFloat's API lets developers build on top of the exchange — check rates, create orders, and track status programmatically. The FixedFloatBot on Telegram lets users execute swaps and track orders without opening a browser.

API ACCESS · FIXEDFLOATBOT · TELEGRAM INTEGRATION

Bitcoin Lightning Network

BTC in
seconds.

FixedFloat was the first instant swap exchange to integrate Bitcoin's Lightning Network — enabling BTC swaps that settle in seconds with negligible network fees.

⚡
Send any coin, receive Lightning BTC
Send ETH, USDT, XMR or any supported coin and receive Bitcoin via the Lightning Network. The conversion is instant — no need to wait for on-chain BTC confirmation. Perfect for topping up Lightning wallets.
ANY COIN → LIGHTNING BTC · SECONDS
🔁
Send Lightning BTC, receive any coin
Pay a Lightning invoice or paste a BOLT11 payment request and receive ETH, USDT, SOL, XMR or any supported coin directly in your wallet. The fastest way to convert Lightning funds to on-chain assets.
LIGHTNING BTC → ANY COIN · BOLT11 SUPPORT
🎯
Near-zero fees on Lightning routes
Bitcoin Lightning Network transactions carry near-zero network fees — often less than $0.01 regardless of amount. Combined with FixedFloat's 0.5% floating rate, Lightning swaps are among the cheapest crypto-to-crypto conversions available.
<$0.01 NETWORK FEE · 0.5% SERVICE FEE
Industry first
First Lightning swap
FixedFloat launched Lightning Network integration before other instant swap exchanges — establishing itself as the go-to choice for users who need fast, low-cost Bitcoin swaps. The Lightning integration works on both the send and receive sides.
Speed comparison
Seconds vs hours
On-chain Bitcoin confirmation: 10–60 minutes. Lightning Bitcoin settlement: 1–10 seconds. For time-sensitive swaps, Lightning changes the experience entirely — from waiting to instant.
Supported wallets
Any Lightning wallet
FixedFloat Lightning works with any Bitcoin Lightning wallet — Phoenix, Breez, Muun, Wallet of Satoshi, Zeus, BlueWallet (Lightning), and more. BOLT11 invoice format is universally supported.

100+ supported coins

All the major
coins. Many networks.

FixedFloat focuses on quality over quantity — major, liquid assets with real demand, across the networks people actually use including L2s and Solana.

₿
BTC
+ Lightning
⟠
ETH
Ethereum
💵
USDT
Multi-network
🔒
XMR
Monero
◎
SOL
Solana
🔷
LTC
Litecoin
🟡
BNB
BNB Chain
💧
XRP
Ripple
🔵
ADA
Cardano
🐕
DOGE
Dogecoin
🔵
USDC
Multi-network
＋
+90
more coins
Monero — no-KYC privacy
XMR fully supported
FixedFloat is one of the few exchanges that supports Monero swaps without KYC. Users consistently cite this as a key reason for choosing FixedFloat — it's the go-to platform for private XMR swaps.
USDT networks
ERC-20 · TRC-20 · More
USDT is available across multiple networks — including Ethereum ERC-20, Tron TRC-20, BNB Chain BEP-20, Solana SPL, and Arbitrum. Convert between USDT networks or swap to other coins across any combination.
Layer-2 tokens
L2 native support
Native support for Arbitrum, Optimism, Base, and zkSync Era — including network-specific tokens. Swap ETH directly to ARB or OP without bridging through mainnet first.

Affiliate program

Refer swaps.
Earn commissions.

FixedFloat's affiliate program is free to join and open to anyone — no existing account or volume requirement. Earn a commission on every swap completed by users you refer.

🔗
Free to join — no requirements
Registration is free and you don't need to be an existing FixedFloat user to join the affiliate program. Sign up, get your referral link, and start sharing immediately.
FREE · NO MINIMUM · OPEN TO ALL
📊
Real-time dashboard
Track exactly what your referrals are trading and what you're earning — all visible in a real-time affiliate dashboard. No delays, no manual reporting.
REAL-TIME · TRADE TRACKING · EARNINGS DASHBOARD
💰
Commission on every swap
Earn a percentage of the service fee on every swap completed by your referred users. Both fixed and floating rate swaps generate affiliate commissions.
FIXED & FLOAT RATES · PER-SWAP COMMISSION
API access
Full REST API
The FixedFloat API lets developers query exchange rates, create orders, and track transaction status programmatically. Build FixedFloat-powered exchange functionality directly into apps, bots, or services.
Telegram bot
@FixedFloatBot
Execute swaps, check orders, and get price alerts directly in Telegram. Direct-to-wallet swaps from TON-based and EVM wallets within chat. No browser required.
24/7 support
Live chat
FixedFloat offers 24/7 live chat support. Users consistently mention fast response times in Trustpilot reviews. Over 2,100 reviews with generally positive feedback on speed and reliability.

FAQ

Questions & answers

Everything about FixedFloat's exchange process, rates, fees, KYC policy, Lightning Network, and affiliate program.

  • FixedFloat (ff.io) is a fully automatic, non-custodial cryptocurrency exchange founded in 2018. It enables instant crypto-to-crypto swaps with no registration or KYC required. It supports 100+ coins, Bitcoin Lightning Network, and offers both fixed (1% fee, guaranteed receive amount) and floating (0.5% fee, market rate) exchange options. The $1 minimum is among the lowest available on any exchange.
  • Fixed rate (1% fee): FixedFloat guarantees the exact amount you will receive when you create the order — the rate is locked at submission. The exchange absorbs market volatility risk. Best for larger amounts or volatile market conditions. Floating rate (0.5% fee): The final amount depends on the live market price at confirmation. Lower fee, but the amount may vary slightly. Best for Lightning BTC swaps (near-instant confirmation) or when saving on fees matters more.
  • No. FixedFloat does not require registration, email, or KYC for standard swaps. You select your pair, enter your destination wallet address, and send. No account required. Users can optionally create an account to view past exchange history. FixedFloat does reserve the right to request proof of funds if transactions are flagged, but this is rare for standard swaps.
  • Most exchanges complete within a few minutes. Bitcoin Lightning Network swaps are near-instant (seconds). On-chain Bitcoin typically requires 1–3 confirmations (10–30 min). Ethereum and L2 chains confirm within 1–3 minutes. The exchange itself is fully automatic once your deposit is detected — no manual steps required on FixedFloat's side.
  • Live exchange rates change constantly. Displaying a rate here would be misleading — by the time you complete the form and send funds, the rate shown would no longer be accurate. The actual rate is shown and locked on ff.io (FixedFloat's official exchange) when you create the order. For fixed-rate orders, the displayed amount on ff.io is what you'll receive, guaranteed. For floating-rate orders, the final amount is based on the market price at confirmation time.
  • FixedFloat is non-custodial — it never stores your funds. Your crypto goes directly from your wallet to a temporary order address, gets swapped, and is sent to your destination wallet. The platform experienced security incidents in early 2024 but resumed normal operations after addressing the infrastructure. Over 2,100 Trustpilot reviews reflect generally positive user experiences. As with any service, use sensible amounts and verify the deposit address before sending.

Swap crypto.
No account needed.

100+ coins. Lightning Network BTC. Fixed 1% or floating 0.5% rates. $1 minimum. Fully automatic and non-custodial. No registration, no KYC, no hassle — since 2018.

Non-custodial · No KYC · No registration · ff.io since 2018