CaptainLedger

In Progress
Cross-platform
Open Source
June 2025

Project Description

CaptainLedger is a comprehensive personal finance management application designed with one fundamental principle in mind: your financial data belongs to you. In a digital landscape dominated by intrusive apps that monetize user data through ads, tracking, and cloud storage, CaptainLedger offers a refreshing alternative—complete control over your data combined with powerful financial tools.

Whether you’re an individual looking to track expenses, manage budgets, monitor investments, or keep tabs on loans, CaptainLedger delivers a robust yet user-friendly experience. It empowers users to manage their finances seamlessly across multiple devices while maintaining uncompromising privacy and security.

Core Philosophy
Privacy-First: By default, all your financial data is stored locally on your device. No third-party servers, no data harvesting, no ads, and no corporate surveillance. You decide if and when to sync your data to a server you control.

User Empowerment: Control your money with smart tools and detailed analytics, not with intrusive algorithms or marketing gimmicks.

Open Source & Transparent: The entire codebase is open under the AGPL-3.0 license, ensuring transparency, community collaboration, and freedom from vendor lock-in.

Key Features
1. Privacy & Security
All data is encrypted and stored locally by default.

Optional self-hosted server sync means your data never leaves your control.

Robust JWT authentication and device trust systems protect your account.

Offline-first design guarantees access without internet connectivity.

2. Cross-Platform Support
Built with React Native and Expo Router for native-like experiences on Android, iOS, and the Web.

Single codebase ensures feature parity and consistent UX across all platforms.

3. Expense & Budget Management
Add, categorize, and track expenses and incomes easily.

Create budgets with notifications to stay on track.

Manage recurring transactions and loans.

4. Multi-Currency & Currency Conversion
Support for multiple currencies with real-time exchange rates.

Offline mode uses cached rates to convert currencies when internet is unavailable.

5. Powerful Analytics & Insights
Visualize spending trends with detailed charts and reports.

Analyze budget adherence, category-wise spending, and cash flow.

Export reports for tax or personal record keeping.

6. Optional Sync & Collaboration
Connect to your own backend server for cross-device syncing.

Server is powered by a secure Flask API and PostgreSQL database.

Sync architecture designed to preserve privacy and data integrity.

Technologies Used

Python
Js
Ts
1 Stars
Jun 2025 Last Updated

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CaptainLedger
Project Information

Type: Open Source

Category: Cross-platform

Status: In Progress

Created: June 25, 2025