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Development & Tools

29 Listings

Bitcoin developer tools — APIs, block explorers, node software, and open-source projects for builders.

Build on Bitcoin with the right tools. This directory covers block explorers like Mempool.space, node-in-a-box solutions like Umbrel and RaspiBlitz, Lightning implementations like LND, and essential infrastructure like Electrum Server and Bitcoin Core. Whether you're building your first Lightning app or running a production node, every tool here is open-source, community-trusted, and actively maintained.

bitcoin developer tools bitcoin API block explorer Mempool.space Umbrel bitcoin node Lightning development bitcoin open source RaspiBlitz

Open-source Bitcoin mempool visualizer and blockchain explorer used by millions to track transactions, estimate fees, and monitor network congestion in real time. Self-hostable on Umbrel, RaspiBlitz, and Start9 for full sovereignty. The most trusted tool for checking Bitcoin transaction status, viewing block data, and planning optimal fee rates before sending.

🌐 Remote🔗 mempool.space

Accepts BTCLightningNo-KYCOpen Source

bitcoin explorermempooltransaction trackerfee estimatoropen-source

The original Bitcoin full node software that validates every transaction and block on the network. Running Bitcoin Core lets you verify your own payments without trusting third parties, enforce consensus rules, and strengthen network decentralization. Open-source since 2009, maintained by hundreds of contributors — essential for anyone serious about Bitcoin sovereignty and trustless verification.

🌐 Remote🔗 bitcoincore.org

Accepts BTCNo-KYCOpen Source

bitcoin nodebitcoin softwarefull nodeconsensusopen-source

The most widely deployed Lightning Network implementation, powering instant Bitcoin payments across thousands of nodes worldwide. Written in Go with an extensive gRPC API, LND enables developers to build Lightning-powered applications, manage payment channels, and route payments. Ideal for merchants, app builders, and node operators who need reliable Lightning infrastructure.

🌐 Remote🔗 github.com/lightningnetwork/lnd

Accepts BTCLightningNo-KYCOpen Source

Lightning NetworkLightning nodebitcoin developmentroutingopen-source

Blockstream's modular Lightning Network implementation written in C, designed for developers who want maximum flexibility. Features a powerful plugin system for custom functionality, low resource footprint, and spec-compliant protocol handling. Perfect for building custom Lightning applications, running lightweight payment nodes, or integrating instant Bitcoin payments into existing software stacks.

🌐 Remote🔗 github.com/ElementsProject/lightning

Accepts BTCLightningNo-KYCOpen Source

Lightning NetworkLightning nodebitcoin developmentpluginsopen-source

Plug-and-play home server OS that makes running a Bitcoin full node and Lightning node as easy as installing an app. Works on Raspberry Pi or any x86 hardware. Includes a built-in app store with 100+ self-hosted applications — from mempool explorer to Nostr relays, password managers, and media servers. The easiest path to Bitcoin self-sovereignty without command-line skills.

🌐 Remote🔗 umbrel.com

Accepts BTCLightningNo-KYCOpen Source

bitcoin nodehome serverself-hostingeasy setupopen-source

Community-driven DIY Bitcoin and Lightning full node built on Raspberry Pi. Supports both LND and Core Lightning implementations, giving operators flexibility in their Lightning setup. Includes hands-on setup process that teaches node operation from the ground up. Ideal for tinkerers, educators, and Bitcoiners who want full control over their node hardware and software configuration.

🌐 Remote🔗 raspiblitz.org

Accepts BTCLightningNo-KYCOpen Source

bitcoin nodeRaspberry PiDIY nodeLightningopen-source

Fast, open-source blockchain explorer for looking up Bitcoin transactions, addresses, and blocks without compromising your privacy. Also supports Liquid sidechain data. Can be self-hosted for maximum confidentiality when verifying payments or auditing on-chain activity. Clean interface, reliable uptime — a privacy-conscious alternative to mainstream block explorers.

🌐 Remote🔗 blockstream.info

Accepts BTCNo-KYCOpen Source

bitcoin explorerblock explorerLiquidtransaction lookupopen-source

Free, open-source design resource for developers and designers building Bitcoin wallets, payment interfaces, and non-custodial applications. Covers UX patterns for key management, transaction flows, backup procedures, and accessibility. Community-maintained with real-world case studies — essential reading for anyone designing user-friendly Bitcoin products that prioritize self-custody and security.

🌐 Remote🔗 bitcoin.design/guide

Accepts BTCNo-KYCOpen Source

bitcoin designUX guideopen-sourcedesign patternscommunity

Practical, step-by-step guides and personal mentorship for setting up Bitcoin nodes, configuring multisig wallets, using privacy tools like CoinJoin and Whirlpool, and achieving full Bitcoin sovereignty. Covers hardware wallets, node comparisons, Lightning setup, and operational security. Offers 1-on-1 paid mentorship for hands-on help navigating the Bitcoin self-custody journey from beginner to advanced.

🌐 Remote🔗 bitcoiner.guide

Accepts BTCLightningNo-KYC

bitcoin guidehow to bitcointutorialsprivacybeginner

Open-source suite of Rust libraries enabling developers to build cross-platform, secure, and feature-rich Bitcoin wallets without reinventing the wheel. BDK handles wallet construction, transaction signing, UTXO management, and Miniscript descriptor support, leaving product-layer decisions to the developer. Used by Bitkey, Envoy, and dozens of production Bitcoin wallets.

🌐 Remote🔗 bitcoindevkit.org

Accepts BTCNo-KYCOpen Source

bitcoin developerbitcoin libraryrust bitcoinbitcoin SDKopen source bitcoin

Open-source protocol enabling groups of trusted guardians to jointly custody Bitcoin on behalf of community members using Chaumian e-cash for privacy-preserving transactions. Allows communities — villages, families, coops — to offer Bitcoin banking services without any single custodian holding all the keys. A critical building block for scalable, private Bitcoin adoption in underserved communities.

🌐 Remote🔗 fedimint.org

Accepts BTCLightningNo-KYCOpen Source

bitcoin ecashfederated custodybitcoin communitybitcoin privacyopen source bitcoin

Open-source Chaumian e-cash protocol that enables privacy-preserving digital cash built on Bitcoin and Lightning — transactions are cryptographically blind, making them unlinkable. Cashu mints issue and redeem ecash tokens backed by Bitcoin; users can transact offline and exchange tokens later. A developer toolkit for building private, scalable Bitcoin micropayment systems.

🌐 Remote🔗 cashu.space

Accepts BTCLightningNo-KYCOpen Source

bitcoin ecashlightning privacychaumian mintbitcoin micropaymentsopen source bitcoin

Open-source web interface for managing LND and Core Lightning nodes — providing a visual dashboard for channels, payments, routing, and node health without the command line. Runs locally alongside your node and connects over REST/gRPC APIs. A go-to tool for self-sovereign node operators who want graphical control over their Lightning infrastructure.

🌐 Remote🔗 ridethelightning.info

LightningNo-KYCOpen Source

lightning node managerLND GUIbitcoin node toollightning dashboardopen source lightning

French Bitcoin company and creator of Eclair — one of the three major Lightning Network implementations (alongside LND and Core Lightning) — used in production routing nodes worldwide. Also builds Phoenix Wallet, the leading non-custodial Lightning mobile wallet, and Strike's Lightning backend. One of the most active contributors to Lightning Network protocol development and specification.

📍 Paris, France🔗 acinq.co

Accepts BTCLightningNo-KYCOpen Source

lightning implementationeclair lightninglightning developerbitcoin companylightning network

Open-source NixOS configuration framework for deploying Bitcoin and Lightning nodes with security hardened defaults — systemd isolation, minimal attack surface, and reproducible builds. Supports Bitcoin Core, LND, Core Lightning, Electrs, Mempool.space, and more, all configured declaratively. The gold standard for security-conscious node operators who want an auditable, reproducible, and hardened Bitcoin infrastructure.

🌐 Remote🔗 nixbitcoin.org

LightningNo-KYCOpen Source

bitcoin nodeNixOS bitcoinsecure bitcoin nodebitcoin infrastructureopen source node

Online platform organizing global Lightning Network hackathons, showcasing Bitcoin app projects, and building a community of Lightning developers and designers. Home to the Legends of Lightning tournaments — major events that produced dozens of production Lightning applications. A launchpad for the next generation of Bitcoin and Lightning builders.

🌐 Remote🔗 bolt.fun

Accepts BTCLightningNo-KYCOpen Source

bitcoin hackathonlightning developerbitcoin builderlightning appsbitcoin community developers

Desktop app that spins up a local Bitcoin and Lightning Network test environment with Docker — create multi-node regtest networks instantly for development and testing. Supports LND, Core Lightning, and Eclair nodes side by side, with a visual interface for managing channels and routing. The fastest way for developers to test Lightning applications without touching mainnet.

📍 USA🌐 Remote🔗 lightningpolar.com

LightningNo-KYCOpen Source

lightning developer toolbitcoin testinglightning network testingregtest bitcoinopen source bitcoin

Open-source web interface for JoinMarket — the peer-to-peer CoinJoin marketplace where makers earn Bitcoin yield for providing liquidity to privacy-enhancing mixing transactions. Makes the powerful but complex JoinMarket accessible through a clean browser-based UI. For Bitcoiners who want to improve their transaction privacy while earning fees from the privacy market.

🌐 Remote🔗 jamapp.org

Accepts BTCNo-KYCOpen Source

bitcoin privacycoinjoinjoinmarketbitcoin mixingopen source bitcoin

Comprehensive, community-maintained guide for building a Bitcoin and Lightning node from scratch on a mini PC — with detailed, tested instructions for every component from OS to Electrum server. Successor to the popular RaspiBolt project, adapted for x86 hardware for more performance and storage capacity. The most accessible path to running sovereign Bitcoin infrastructure for individuals with basic Linux skills.

🌐 Remote🔗 v2.minibolt.info

LightningNo-KYCOpen Source

bitcoin node guidelightning node setupself-sovereign nodebitcoin DIYbitcoin infrastructure

Open-source project separating Lightning private keys and security rule validation from the Lightning node itself into a discrete, verifiable signing device. Prevents a compromised Lightning node from stealing funds by enforcing policy rules at the signing layer. Critical security infrastructure for businesses and institutions running Lightning nodes at scale who need hardware-level key protection.

🌐 Remote🔗 vls.tech

LightningNo-KYCOpen Source

lightning securitybitcoin key managementlightning node securityhardware signeropen source bitcoin

Socratic seminar meetup format bringing together Bitcoin developers, researchers, and enthusiasts in cities around the world to discuss the latest Bitcoin protocol developments, code reviews, and technical proposals. Chapters exist in New York, San Francisco, Austin, London, and dozens of cities globally. Free, informal, and technical — the grassroots backbone of Bitcoin developer community building.

🔗 bitdevs.org

No-KYC

bitcoin developer meetupbitcoin socraticbitcoin developersbitcoin communitybitcoin technical

Flexible Lightning implementation built as a library rather than a standalone daemon — lets developers embed Lightning functionality directly into their applications. Built by Spiral (Block/Square) in Rust, designed for mobile wallets, exchanges, and any app that needs Lightning integration without running a full node.

📍 Remote🌐 Remote🔗 lightningdevkit.org

Accepts BTCLightningNo-KYCOpen Source

lightning SDKRustmobile lightningembedded lightningSpiral

Open protocol for censorship-resistant social networking, built on cryptographic key pairs and relays. Deeply intertwined with the Bitcoin community — many Nostr clients integrate Lightning payments for tips and zaps. Used by Bitcoin developers, educators, and communities as an alternative to centralized platforms.

📍 Remote🌐 Remote🔗 nostr.com

Accepts BTCLightningNo-KYCOpen Source

decentralized socialcensorship-resistantzapslightning tipsbitcoin social

Client-side validated smart contract system that operates on top of Bitcoin and the Lightning Network. Enables tokens, NFTs, and complex contracts without bloating the Bitcoin blockchain — all contract data stays off-chain with the participants. A key technology for extending Bitcoin's programmability while preserving its decentralization.

📍 Remote🌐 Remote🔗 rgb.tech

Accepts BTCLightningNo-KYCOpen Source

smart contractsBitcoin programmabilityclient-side validationBitcoin tokensLightning contracts

The primary technical Q&A platform for Bitcoin development questions — part of the Stack Exchange network. Thousands of answered questions covering Bitcoin Core, Lightning, wallet development, scripting, and protocol details. Essential resource for developers building on Bitcoin.

📍 Remote🌐 Remote🔗 bitcoin.stackexchange.com

No-KYC

bitcoin Q&Adeveloper helpbitcoin programmingtechnical questionsbitcoin protocol

The oldest and most established Bitcoin Layer 2 enabling general-purpose smart contracts that inherit Bitcoin finality. Uses the Clarity programming language — a decidable, non-Turing complete language designed for predictable, auditable contracts. The 2024 Nakamoto upgrade brought true Bitcoin settlement to Stacks transactions. Powers a growing ecosystem of DeFi, NFTs, and decentralized applications anchored to Bitcoin security.

📍 Remote🌐 Remote🔗 stacks.co

No-KYCOpen Source

Bitcoin L2smart contractsClarityDeFiNakamoto upgradedeveloper tools

User-friendly software for running a Bitcoin full node and Lightning Network node on a Raspberry Pi or standard PC. One-click installation of Bitcoin Core, LND, Electrum Server, BTCPay Server, mempool.space, and dozens of other Bitcoin applications. Aimed at self-sovereign Bitcoiners who want to verify their own transactions and run their own infrastructure without deep technical knowledge.

📍 Remote🌐 Remote🔗 mynodebtc.com

Accepts BTCLightningNo-KYCOpen Source

full nodeLightning nodeRaspberry Piself-sovereigntyBitcoin Coreopen-source

Bitcoin Layer 2 powered by a zero-knowledge virtual machine (zkVM) enabling general-purpose applications with Bitcoin-level security. Uses BitVM-based bridge technology for trustless cross-chain messaging and Ethereum developer tool compatibility. One of the first Bitcoin L2s to leverage zero-knowledge proofs for scalability and privacy, bringing advanced cryptographic capabilities to the Bitcoin ecosystem.

📍 Remote🌐 Remote🔗 bitlayer.org

No-KYCOpen Source

Bitcoin L2zero-knowledgezkVMBitVMsmart contractsscalability

Research and development lab focused on strengthening the Bitcoin protocol. Runs the Chaincode Seminars — the most respected training program for aspiring Bitcoin Core contributors. Employs and funds Bitcoin Core developers working on protocol improvements, peer-to-peer networking, mempool policy, and wallet functionality. A critical institution for Bitcoin open-source development sustainability.

📍 New York, NY, USA🔗 chaincode.com

Accepts BTCNo-KYCOpen Source

Bitcoin Coreopen-sourcedeveloper trainingprotocol developmentseminarsresearch

What You'll Find Here

APIs & SDKs

Bitcoin development libraries, APIs, and software development kits for building applications.

Block Explorers

Tools for viewing Bitcoin transactions, blocks, addresses, and network activity in real time.

Open-Source Projects

Community-driven open-source Bitcoin tools, libraries, and infrastructure projects.

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