We help you find and support open-source Bitcoin projects - helping create a better tomorrow, today.

General Fund

Contributions to the OpenSats Operations Budget will be used to cover our operating expenses as we continue to facilitate frictionless, tax-deductible donations from the community to the Bitcoin & FOSS ecosystems at a pass-through rate of 100%.

Operations Budget

OpenSats Welcomes Will Clark as an LTS Grantee.

Long-Term Support For Will Clark

OpenSats Welcomes Furszy as an LTS Grantee.

Long-Term Support For Furszy

OpenSats Welcomes Matt Morehouse as an LTS Grantee.

Long-Term Support For Matt Morehouse

The Nostr Design initiative grows and has its first results to show.

Niel Liesmons Joins OpenSats Design

OpenSats Welcomes Gleb Naumenko as an LTS Grantee.

Long-Term Support For Gleb Naumenko

OpenSats is funding another dozen open-source projects in the nostr ecosystem.

Third Wave of Nostr Grants

OpenSats Welcomes Vasil Dimov as an LTS Grantee.

Long-Term Support For Vasil Dimov

What will the next decade of building Bitcoin's infrastucture bring?

Looking Ahead: Bitcoin Infrastructure This Decade

OpenSats is proud to present the Nostr Design initiative, spearheaded by Karnage and Daniele.

Take Nostr Mainstream with Help from Nostr Design

Sjors Provoost receives long-term support from OpenSats.

Long-Term Support For Sjors Provoost

OpenSats is providing grants to 8 additional open-source projects in the bitcoin and nostr ecosystem.

Grants for BDK, LNbits, Nostr, and More!

OpenSats Welcomes Josiah Baker as an LTS Grantee.

Long-Term Support For Josi Baker

OpenSats is funding over a dozen projects in the bitcoin & lightning ecosystem.

First Wave of Bitcoin Grants

OpenSats is funding over a dozen open-source projects in the nostr ecosystem.

First Wave of Nostr Grants

OpenSats is launching long-term grants to support Bitcoin Core contributors and similar load-bearing internet people.

Long-Term Support Program for Bitcoin Core Developers

OpenSats receives $10 million from #startsmall for bitcoin, nostr, and related FOSS development.

Additional Funding from #startsmall

Bitcoiner.guide

Summer of Bitcoin is a global summer internship program focused on introducing university students to bitcoin open-source development and design. Till date, Summer of Bitcoin has funded 124 students from 15 countries to contribute to over 29 open-source bitcoin projects.

Summer of Bitcoin

Stratum V2

Sparrow is a desktop-only Bitcoin wallet for those who value financial self-sovereignty. Sparrow’s emphasis is on security, privacy, and usability. Sparrow does not hide information from you - on the contrary, it attempts to provide as much detail as possible about your transactions and UTXOs, but in a way that is manageable and usable.

Sparrow Wallet

Zeus is an open-source, non-custodial Bitcoin wallet that gives you full control over how you make payments.

Zeus

GrapheneOS is a private and secure mobile operating system with great functionality and usability. It has near full Android app compatibility via our sandboxed Google Play compatibility layer.

GrapheneOS

Monitor and manage your node from any browser and any device.

ThunderHub

Seamlessly build cross-platform mobile Bitcoin wallets.

Bitcoin Dev Kit

Splicing is the ability to resize Lightning channels on-the-fly, giving users of the Lightning Network many additional benefits that were not intuitively obvious at first.

Splicing

We help people have a feature rich bitcoin experience, maintain privacy, and thrive as a sovereign individual.

RoninDojo

Sapio is a tool for easily defining smart contracts and exporting easy-to-integrate APIs for managing open contracts.

Sapio

RGB is a system of private & scalable client-validated smart contracts on the Bitcoin & Lightning networks. RGB is a digital rights management system.

Cashu brings near-perfect privacy for users of custodial Bitcoin applications by using a Chaumian ecash system.

Cashu

Start accepting Bitcoin payments with 0% processing fees & no third-party intermediary.

BTCPay Server

A free, open-source community resource for designers, developers, and others working on non-custodial bitcoin products.

Bitcoin Design Community

The Tor Project advances human rights and defends your privacy online through free software and open networks.

The Tor Project

A think tank studying the future of money.

Bitcoin Policy Institute

The goal of SeedSigner is to lower the cost and complexity of Bitcoin multi-signature wallet use. To accomplish this goal, SeedSigner offers anyone the opportunity to build a verifiably air-gapped, stateless Bitcoin signing device using inexpensive, publicly available hardware components (usually < $50).

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Long-Term Support For Will Clark

Long-Term Support For Furszy

Long-Term Support For Matt Morehouse

Niel Liesmons Joins OpenSats Design

Long-Term Support For Gleb Naumenko

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