Bigcapital | Modern core accounting software
Modern open-source accounting software for small businesses.
Categories:
Bigcapital is modern, open-source accounting and inventory software for small and medium-sized businesses, automating financial processes like invoicing, expenses, and reporting as an alternative to QuickBooks and Xero.
🚀 Overview
Bigcapital solves the challenges of outdated accounting software by providing a modern, intuitive platform that automates repetitive financial tasks such as transaction categorization, invoice reminders, and book closing. It delivers real-time financial statements, KPIs, and intelligent reports to enable faster, data-driven decisions without waiting for month-end closings.
It's built for small and medium businesses (SMBs), business owners, accountants, and bookkeepers who need efficient, collaborative tools for managing accounts receivable/payable, inventory, and multi-currency transactions.
The project was created to revolutionize core accounting with an enjoyable user experience, advanced automation, seamless integrations, and the flexibility of open-source self-hosting or convenient cloud deployment, moving beyond legacy technologies.
✨ Key Features
- Sales & Purchases Invoicing: Create professional invoices, manage recurring billing, track payments from customers/vendors.
- Inventory Tracking: Automatic stock adjustments on buys/sells with smart reports.
- Intelligent Financial Reports: Real-time insights, KPIs, balance sheets, P&L without manual effort.
- Double-Entry Accounting: Accurate bookkeeping, expense categorization, multi-currency support with live FX rates.
- Collaboration Tools: Role-based permissions for accountants/bookkeepers.
- Headless API: Integrate with external sales, payments, banks.
- Upcoming: Enhanced bank syncs, advanced automations.
🛠 Tech Stack
- Frontend: React, Vite, TypeScript, SCSS
- Backend: NestJS, Node.js, TypeScript
- Database: PostgreSQL (tenant databases), Elasticsearch
- Auth: Custom
- Hosting: Docker Compose (self-host), Custom cloud
👥 Who Is This For?
This project is useful for:
- Small and medium businesses automating finances
- Accountants and bookkeepers collaborating on books
- Teams seeking open-source QuickBooks/Xero alternatives
📸 Screenshots / Demo
- Live demo: https://bigcapital.app (start free trial)
- GitHub: https://github.com/bigcapitalhq/bigcapital
🔥 Project Status
- 🟢 Actively building
Last updated: 2026-03-24
❓ FAQ
Is this project free?
Freemium — Fully open-source self-hosting is free (AGPL-3.0 license). Cloud version offers free trial, paid plans starting at $15/organization/month. (Briefly: Pay for hosted convenience and support.)
Is the source code available?
Yes — https://github.com/bigcapitalhq/bigcapital
Can I contribute?
Yes — Review CONTRIBUTING.md, report issues, submit pull requests on GitHub. All types of contributions (code, docs, bugs) welcome from 31+ contributors.
📬 Contact & Links
- Website: https://bigcapital.app
- GitHub: https://github.com/bigcapitalhq/bigcapital
- Twitter/X: https://x.com/BigcapitalHQ
- Email: info@bigcapital.app
Built with ❤️ and kept warm on WarmIndex.
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