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.

A wallet service built with go-kit

Open Source Double Entry Accounting + Crypto/Web3

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

[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.

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

Financial truth infrastructure for the decentralized world.

BalanceCat: Your Personal Double Entry Bookkeeping Simplified (Currently no service)

A simple double entry accounting app which has a fastapi backend with sveltekit frontend

Takes in a *.tsv or *.csv Qualtrics export file, compares original and double-entry rows, and identifies mismatched data.

Production-grade core banking loan management and double-entry accounting service for a fintech lending platform.

Double-entry ledger API - Spring Boot service with idempotent journal writes and integrity checks.

A high-performance open-source double-entry ledger. Designed for high-throughput mission-critical transactional products.

Double-entry bookkeeping library for PHP

The append-only business journal for the AI age — agent-native, human-auditable, maximally forkable

A digital wallet system with double-entry ledger accounting, atomic transactions, and automatic balance reconciliation.

NomLedger is a storage-agnostic Go validation engine that enforces zero-sum accounting, period closure, currency consistency, and exchange-rate tolerance on in-memory financial transactions before persistence.

Production-grade double-entry ledger with ACID consistency, idempotent posting, FX settlement, and reconciliation.

High-integrity financial transaction engine implementing Double-Entry Ledger, ACID compliance, and Pessimistic Locking (SELECT FOR UPDATE) to prevent race conditions. Built with Node.js, TypeScript & Postgres.

Mirror of: https://git.siru.ink/siru/libledger .

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