Firefish.io offers a refreshingly simple and transparent way to get a loan backed by Bitcoin. The platform walks you through the process in clear steps: set your terms, get matched with a lender, lo... See more
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Firefish is a global, non-custodial platform that enables users to access cash or stablecoins by using Bitcoin as collateral—without ever needing to sell it. Whether you're looking to borrow or earn, Firefish connects people directly in a secure, peer-to-peer marketplace. Security and transparency are at the core of everything we do. Bitcoin collateral is stored in a multi-signature escrow, where no single party—including Firefish—can access your funds unilaterally. This decentralized model removes the risks common with centralized lending platforms. Borrowers receive loans in traditional currencies or stablecoins, while retaining their Bitcoin exposure. Investors earn interest by funding loans backed by overcollateralized Bitcoin, all without needing to handle crypto directly. Available to users in supported countries around the world, Firefish makes lending and borrowing simple, transparent, and secure. Our platform is built on open, auditable technology and supports multiple languages, making it accessible and user-friendly for everyone. Firefish: Keep your Bitcoin. Unlock its value.
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Czech Republic
- firefish.io
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Perfectly smooth experience
Perfectly smooth experience. No issues. Everything is clear and intuitive. Loans are trust-less with very low 3rd party risk factor.
Easy and quick
All good, very easy and smooth experience.
What's missing: Loan rollover so I never have to pay the principal back. Are you guys working on that ?
Thanks 👍
Number One in Bitcoin Loans
Perfect for trustless P2P Bitcoin Loans. Open Source and no counterparty risk. Intuitive Website and sleek design. More and more functionalities and automations in the pipeline. Nice peers who act very fast and reliable.
impeccable service
once my data were verified, which took unexpectedly long, their service was impeccable!
I was genuinely interested in joining…
I was genuinely interested in joining Firefish as an investor and exploring the platform's potential. Unfortunately, my experience so far has been disappointing. I attempted multiple times to complete the registration process, but it consistently failed.
Even more concerning is the support service: emails remain unanswered, and the instant-messaging assistance appears to be fully automated, with no human response at all. For a company positioning itself as an innovative and investor-focused platform, such a lack of direct support and efficiency is unexpected and discouraging.
At this stage, I am still willing to evaluate Firefish, but I sincerely hope the team will improve their onboarding process and provide actual human assistance to prospective investors. Without this, it is difficult to build confidence in the platform.

Reply from Firefish
Firefish is a great way to borrow fiat…
Firefish is a great way to borrow fiat by using Bitcoin as collateral—no need to sell your Bitcoin. The onboarding is smooth, with instant approvals and a user‑friendly mobile app that mirrors the web interface. Security is top‑tier: Bitcoin sits in multi‑signature cold wallets while fiat is FDIC‑insured
Completely transparent - no rehypothecation
Completely transparent process for borrowers and lenders - everything is done on chain. I've done a full round trip (borrow, pay off, bitcoin returned) with no friction whatsoever. This is the bitcoin lending product bitcoiners have wanted for years. Thank you!
Really easy User interface
Really easy User interface. Super efficient communication. Would like to see a few examples of the liquidation scenarios using actual examples. Overall really good experience and the product is incredible for BTC Hodlers.
Excellent user experience
Excellent user experience, works like a charm. Superb utility. Finance your life with your bitcoin. Responsive support. Great referral system.
Firefish delivers a truly innovative…
Firefish delivers a truly innovative way to borrow fiat cash by using Bitcoin as collateral—no need to sell your Bitcoin. The onboarding is lightning‑fast, with instant approvals and a user‑friendly mobile app that mirrors the web interface. Security is top‑tier: Bitcoin sits in multi‑signature cold wallets while fiat is FDIC‑insured.
A lovey idea
It is a lovely idea to live off your BTC stack while it appreciates in time. Gives BTC a real utility for usual folks.
The FF web is nicely structured and user friendly.
Makes everything easy ...
I have a good experience with firefish
I have a good experience with firefish, I been using it regularly for a while now to refinance some loans. Works easy.
Firefish is great!
Super fast and easy credit process. I like this platform very much. Thanks!!!
Just awesome!
Just awesome!!
The kind of service I´ve waited for years as bitcoiner.
Keep up the great work!
Great service, fast and helpful support team, easy going :)
I've used Firefish multiple times now…
I've used Firefish multiple times now as a borrower and have been very impressed with the process.
It's a big and important point of difference that the bitcoin collateral is held in a multisig and cannot be rehypothecated.
As a borrower, of course I'm hoping that in the future the lending rate will come down.
Everything is perfect
Everything is perfect. loan and investing, both function very well. Firefish recommended.
Firefish is a great way to get money…
Firefish is a great way to get money quickly without tying yourself to a loan with monthly installments for years, and without having to sell your own Bitcoin. That's the true purpose of Bitcoin. The process is super simple and trustworthy. I highly recommend Firefish. The rollover mechanism needs improvement. Instead of having to manually take out a new loan to repay the existing one, there should be an option to use the deposited multisig collateral for a new loan. This is particularly useful when prices are rising. An ongoing loan from April 2025 was almost 200% overcollateralized at the last all-time high and could thus be easily increased. Furthermore, the loan limit of €70,000 should be adjusted in line with rising prices.
Incredible logic and easy to handle…
Incredible logic and easy to handle processes.
Have to pinch myself from time to time that I'm able to lend fiat without involvement of a bank.
Just genius idea and than through and…
Just genius idea and than through and through open source, what more you want for a borrowing platform, similar to eBay?
Maybe a reduction of collateral after you outperform the 2x … will come, just a matter of time to get even better, but already 5stars
It is an amazing system to lend against BTC
It is an amazing system to lend against Bitcoin by having bullet proof collateral and for lender great advantage for basically risk free lending ... it is peer to peer, using escrow, smooth user interface and that is just the beginning of this type of lending. Keep up the great job ... this service has a huge future.
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