Open Source At Split

Don't trust verify.

We believe open source is essential to building in Bitcoin. We do our best to keep our public repos updated and maintained. We encourage and welcome your scrutiny and critiques.

Open source Split_iOS

The Split Rewards iOS wallet, published for transparency.

The iOS client for Split, including self-custodial wallet flows, Lightning address management, messaging, rewards, and merchant discovery.

  • Uses public-safe backend configuration defaults in the open-source iOS snapshot.
  • Includes the current messaging privacy and trust documentation.
Open source Split_NodeJS

The Split backend, published for transparency.

The Node/Express backend that powers wallet-authenticated sessions, Lightning address flows, messaging, rewards, and app infrastructure.

  • Published for inspection and review.
Public beta split_bitcoin_tax_prep

Bitcoin tax prep for spenders, built in public.

A web-based Bitcoin tax prep workflow that parses supported CSV and PDF documents, helps users review owned wallets and outgoing sends, and generates a draft tax packet with supporting files.

  • No LLM is used for document extraction or tax calculations.
  • Uploads are processed in-session and cleared after package download.
  • Current tested support includes Split, Cash App, and Strike source files, with broader parser coverage expanding over time.