Why We Recommend
100% open-source. No pre-built hardware to trust. Community-driven project. Stateless design (no secrets stored).
Services & Features
Air-gapped QR signingStateless operationDice roll entropySeedQR formatMultisig support
Open Source
Open-source Bitcoin tools and applications built for transparency and community collaboration.
Why We Recommend
Fully open-source. Built by TFTC. No browsing data collected. Free to use.
Services & Features
Chrome extensionBrave extensionFirefox add-onReal-time BTC price conversionMultiple fiat currency supportDisplay in BTC or sats
Why We Recommend
Open-source. Backed by Ten31 and Erik Voorhees. 'Don't trust, verify' made practical.
Services & Features
StartOSBitcoin Core nodeLightning (LND/CLN)BTCPay ServerTor
Why We Recommend
SOC 2 Type II compliant. Powers Chipper Cash (50%+ BTC via Lightning).
Services & Features
Hosted Lightning nodesVoltage PaymentsBTCPay hostingDeveloper APIs
Why We Recommend
Open-source server code. Confidential computing provides cryptographic proof your data stays private. Built by OpenSecret.
Services & Features
End-to-end encrypted AI chatAnonymous signup (no email required)Bitcoin payments (10% discount)Multiple AI modelsCross-device sync
Why We Recommend
Open-source. Integrated custodial Lightning wallet for easy onboarding. Nostr Wallet Connect (NWC) support for external wallets.
Services & Features
Nostr social feedsIntegrated Lightning walletZaps (Bitcoin tips)Content discoveryDesktop, iOS & Android appsIn-app sat purchases
Why We Recommend
Open-source. Built on Nostr protocol. Community-driven development. No vendor lock-in.
Services & Features
AI-assisted app buildingOpen-source development environmentNostr integrationCustom app creation
Why We Recommend
Built by ACINQ, creators of Eclair (one of the original Lightning implementations). Fully open-source. Runs a real Lightning node on your phone.
Services & Features
Splicing (single dynamic channel)Taproot channels (15% cheaper, more private)Trustless on-chain swapsMultiple wallet supportNFC payments
Why We Recommend
Fully open-source (AGPL). Embedded LND node option. No KYC. OLYMPUS LSP for 0-conf channels.
Services & Features
Embedded Lightning nodeRemote node management (LND, Core Lightning)Zeus Pay (self-custodial Lightning address)Simple Taproot ChannelsContact book & NFC payments
Why We Recommend
Fully open-source (MIT license). Built by Bull Bitcoin (founded 2013). Francis Pouliot's passion project with lifetime funding commitment.
Services & Features
Bitcoin, Lightning & Liquid supportNon-custodial atomic swapsHardware wallet companion (Coldcard Q)Recoverbull encrypted backupBull Bitcoin exchange integration (optional)
Why We Recommend
Open-source. Built on BDK (Bitcoin Dev Kit). OpenSats grant funded. No data collection.
Services & Features
Hot wallet with encrypted local storageHardware wallet support (Coldcard, Krux, TAPSIGNER)PSBT signing via QR & NFCBIP329 label sync (Sparrow compatible)UTXO management
Why We Recommend
Open-source. Native iOS app. Cashu protocol uses Chaumian blind signatures — mint can't see who sends or receives.
Services & Features
Cashu ecash (Chaumian mint)iMessage integration (send BTC in texts)Lightning interoperabilityMultiple mint supportZero data collection
Why We Recommend
Originally Blockstream project, now by JAN3 (Samson Mow). Non-custodial. Uses Green Development Kit (GDK).
Services & Features
Bitcoin, Lightning & LiquidNative USDt support (Liquid, Ethereum, Tron)Asset swaps via BoltzPrepaid Dolphin Card integration12-word seed backup
Why We Recommend
Founded 2017. Fully open-source (MIT license). Connect to your own Electrum server. No KYC.
Services & Features
Bitcoin & LightningMultisig vaultsWatch-only walletsHardware wallet support (Coldcard, Cobo)Plausible deniability (fake wallets)
Why We Recommend
Open-source. Runs a full Lightning node on your device. Non-custodial from day one. Powers the Breez SDK used by developers worldwide.
Services & Features
Full Lightning node on deviceAutomatic channel managementBuilt-in Point of SalePodcast player (streaming sats)Lightning address supportOffline payment notifications
Why We Recommend
Open-source. Web-based (no install needed). Uses Cashu protocol with Chaumian blind signatures for privacy.
Services & Features
Browser-based ecash walletLightning send/receiveMultiple mint supportOffline token transferNo signup required
Why We Recommend
Fully open-source (Apache 2). Built by Craig Raw. PSBT-native from the ground up. Supports all major hardware wallets. No data collection.
Services & Features
Single sig & multisig supportHardware wallet coordination (Coldcard, Trezor, Ledger, etc.)Full UTXO & fee controlTransaction editor & blockchain explorerWhirlpool CoinJoinTor & own node support
Why We Recommend
Created by Thomas Voegtlin in 2011. Fully open-source (MIT license). One of the oldest and most trusted Bitcoin wallets. Private keys encrypted and never leave your computer. Decentralized server network.
Services & Features
SPV verification (no full node needed)Multisig supportCold storage & watching-only walletsHardware wallet integrationSeed phrase recoveryPlugin system for extensions+1 more
Why We Recommend
Fully open-source. Built by Wizardsardine (Kevin Loaec). Uses Miniscript for advanced recovery. Compatible with BitBox02, Coldcard, Ledger, Jade.
Services & Features
Timelocked recovery pathsInheritance planning (no third party)Decaying multisigTaproot supportOne-click node setupHardware wallet support
Why We Recommend
Fully open-source. Founded by @softsimon_ and @wiz. No ads, no tracking. Self-hostable. Integrated with 30+ wallets and services.
Services & Features
Real-time mempool visualizationFee estimationTransaction trackingBlock explorerMining pool analysisLightning explorer+1 more
Why We Recommend
Built by Blockstream. Fully open-source (Esplora). Self-hostable. No tracking.
Services & Features
Bitcoin block explorerLiquid block explorerTransaction lookupAddress monitoringAPI access
Why We Recommend
Fully open-source. Founded by Nicolas Dorier. Used by Namecheap ($73M+ in BTC revenue). Powers Bitcoin payments for thousands of merchants worldwide. No KYC, censorship-resistant.
Services & Features
Point-of-Sale appInvoice managementPayment links & buttonsCrowdfunding campaignsLightning Network supportHardware wallet integration+2 more
Why We Recommend
Fully open-source. Maintained by industry-leading Bitcoin developers. Powers wallets like Cove, Envoy, and Mutiny. Funded by Spiral, OpenSats, and the BDK Foundation.
Services & Features
Rust wallet librarySwift & Kotlin bindingsWASM supportFlexible chain sources (Electrum, Esplora, Bitcoin Core RPC)Descriptor-based walletsCoin selection algorithms
Why We Recommend
Fully open-source. Maintained by Spiral (Block). Powers apps like Mutiny Wallet and Cash App. Battle-tested in production.
Services & Features
Rust Lightning librarySwift & Kotlin bindingsCustom channel managementFlexible persistence & networkingBOLT spec compliantLSP integration support
Why We Recommend
Fully open-source. Implements BIP 78 (PayJoin V1) and BIP 77 (PayJoin V2). Funded by OpenSats and HRF. Created by Dan Gould.
Services & Features
PayJoin V1 (BIP 78) supportPayJoin V2 (BIP 77) serverless protocolRust library with bindingsSender & receiver implementationsTransaction cut-through
Why We Recommend
Fully open-source. The most widely used Rust Bitcoin library. Foundation for BDK, LDK, and many other projects. Maintained by a dedicated team of Bitcoin developers.
Services & Features
Bitcoin protocol primitivesTransaction serialization/deserializationScript parsing & creationBIP32/39/340 supportMiniscript & descriptorsPSBT handling
Why We Recommend
Open-source SDK from Breez. Self-custodial by default with keys on user's device. Powers Lightning payments without requiring node management. Multiple implementations available (Spark and Liquid).
Services & Features
Lightning payment integrationMultiple payment protocols (BOLT11, LNURL-Pay, Lightning addresses)Self-custodial by defaultMulti-platform bindings (JavaScript, Kotlin, Swift, Go, Python, React Native, Flutter, C#)Spark and Liquid implementationsAutomatic channel management
Stay informed
Weekly bitcoin analysis and product recommendations.
Email provider integration coming soon.