FixedFloat

FixedFloat is an instant, non-custodial crypto swap service aimed at people who want to exchange coins without opening a trading account. Its pitch was simple and compelling for years: pick a pair, send the funds, receive the destination asset, and move on. It became especially popular with Bitcoin and Lightning Network users because it supported quick conversions without the clutter of a conventional exchange interface.

The service sits in a more difficult position now than its polished website suggests. FixedFloat built a meaningful following before its February 2024 security incident, when blockchain investigators linked suspicious outflows from its wallets to thefts estimated at roughly $26 million. The operator did not initially offer the clear, detailed public incident response that customers had a right to expect. That silence damaged confidence far more than the fact that an incident occurred.

That history matters because instant exchangers ask customers to make a leap of faith. A user sends crypto to a deposit address before receiving the converted asset. Even if the service describes itself as non-custodial, there is still a period in which the operator controls the transaction flow. FixedFloat's design reduces the need to leave a standing balance on a platform, but it does not remove counterparty risk during a swap.

Before the incident, FixedFloat's fee model was one of its strongest features. Floating-rate swaps were advertised with a 0.5% service fee, while fixed-rate swaps carried a 1% fee. Network fees were added separately and could materially affect small transactions, especially on Bitcoin and Ethereum during congestion. The distinction was clear enough, and users could choose between a cheaper floating quote and a guaranteed quoted output.

The floating option is better for users who can tolerate price movement during confirmation. FixedFloat recalculates against available liquidity, so the amount received can change if the market moves sharply or the incoming transaction arrives later than expected. The fixed option costs more, yet it is often the sensible choice for a time-sensitive payment or a swap where a shortfall would cause problems. That 1% headline charge was not cheap compared with deep order-book exchanges, but it was reasonable for a no-account convenience service.

Small swaps were never where FixedFloat looked best. Bitcoin miner fees, Ethereum gas, and liquidity-provider spreads can turn a modest percentage fee into a disappointing effective price. Someone swapping a few hundred dollars generally had a cleaner experience than someone converting a small leftover wallet balance. FixedFloat showed estimated outputs before a user sent funds, but estimates should never be mistaken for a full execution report.

Speed was the other reason people used it. For a straightforward transaction on active networks, FixedFloat could complete a conversion after the required confirmations and send the outgoing transaction quickly. Litecoin, Tron, XRP, and Lightning-connected workflows could feel close to immediate. Bitcoin and Ethereum swaps were predictably slower because the service had to wait for confirmations, and congestion could make a supposedly quick swap take much longer.

Lightning Network support was a genuine differentiator. A user could exchange Bitcoin on-chain for a Lightning invoice, or route in the other direction, without manually opening channels or using a dedicated Lightning-focused broker. That is useful for experienced Bitcoin users, particularly people moving funds between a cold wallet and a Lightning wallet. It also creates room for errors, because an expired invoice, an incorrect network choice, or a low inbound-capacity issue can complicate what appears to be a simple swap.

FixedFloat's no-registration model remains attractive, but users should read it accurately. No routine account setup does not mean every transaction is beyond review. Like most instant exchange services, it reserved the right to apply anti-money-laundering checks and request identification where its monitoring systems flagged a transaction. If a swap is held for review, the convenience advantage disappears quickly, and support responsiveness becomes vital.

That is where the service has struggled in the court of public opinion. Its support used to be associated with Telegram and email-based help rather than a substantial public support operation. For routine technical questions, that can be enough. For a delayed or frozen transaction, customers need a clear ticket trail, named escalation route, and timely explanations. FixedFloat has never inspired confidence on that front comparable to a large regulated exchange with a dedicated dispute process.

Reputation is the score that pulls this review down hardest. FixedFloat had a recognizable brand and a long operating history by instant-exchange standards. It was not an anonymous website that appeared last week. Yet the 2024 breach allegations, followed by limited public communication, changed the calculation. A security-minded user should not dismiss that because earlier swaps went smoothly.

The interface itself is still one of the better examples of this product category. It is direct, technically literate, and avoids burying the customer under trading charts or account prompts. The transaction page gives users an exchange ID and status tracking, which is helpful. Still, a nice transaction tracker cannot compensate for uncertain operational resilience.

I would only use FixedFloat for a small, non-urgent transaction after independently checking that the service is processing current swaps and that the displayed addresses and domain are legitimate. Never treat an instant exchanger as a wallet. Send a test amount first, save the exchange ID, and avoid using a fixed quote if you cannot complete the deposit inside its stated time window.

FixedFloat remains a clever product with unusually useful Lightning functionality and a historically transparent fee choice. But trust is part of the product, particularly in a business that briefly takes possession of a customer's crypto. The security incident and weak public reassurance make it hard to recommend for meaningful amounts. There are safer places to pay a similar spread, even if they are less elegant.