💰 Billing & Payments knowledge for cloud platforms

Blnk is an open-source ledger & financial core for shipping fintech products fast.

Modern plain text accounting. Beancount compatible.

Double-entry bookkeeping library

Ledger implementation in golang

An Elixir double-entry library inspired by Ruby's DoubleEntry. Brought to you by CoinJar.

Double-Entry Bank Ledger in Go is a production-focused backend that demonstrates how to correctly handle money movements using strict double-entry accounting with PostgreSQL, Atomic transactions, concurrency-safe operations (serializable isolation + automatic retries), row-level locking, and full ledger reconciliation patterns used by fintech syste

A wallet service built with go-kit

Open Source Double Entry Accounting + Crypto/Web3

Idiomatic, ergonomic library of primitives for professional double-entry accounting in Rust

Rigorous double-entry ledger kernel for Python — no floats, idempotent posting, posting templates

Double-entry accounting written in Elixir. Heavily inspired by ledger-cli

[Under Construction] MacOS Amatino client application

Double-entry accounting system for browsers + indexeddb (a fork of medici)

[Under Construction] Swift binding library for the Amatino API

Highly performant, type-safe command-line accounting ledger built with Kotlin & GraalVM, featuring hierarchical account management, automated balance sheet generation, and GitHub Gist synchronization.

Open-source accounting software with double-entry bookkeeping, invoicing, and multi-tenant support

C++ program to determine if a specified transaction is debit or credit

Financial ledger system implementing double-entry accounting with ACID guarantees, idempotent payments, and crash-safe async webhooks using PostgreSQL + FastAPI

🍯 A sweet personal finance accounting app