Lago
Open-source billing system that handles metering, usage-based pricing, and invoicing at scale. Perfect for AI, cloud, and API companies need...
openalternative.co · collected 2026-10-19
- Docker
- Proven usage
- Install guide
- Real screens
Find
Look in this order — free · compare · exclusive
External solutions are shown only after passing our automatic checklist (finished product, license, maintenance and more). Open a card to see what we checked.
1
Free alternatives first
There are 12 free solutions in your field. Take a look first.
Hyperswitch
A unified payment infrastructure that connects multiple payment processors through a single API integration, enabling global payment process...
openalternative.co · collected 2026-10-19
- Docker
- Proven usage
- Install guide
- Real screens
ERPNext
Open-source ERP solution offering modules for accounting, inventory, HR, CRM, and more. Customizable and scalable for businesses of all size...
openalternative.co · collected 2026-10-19
- Docker
- Proven usage
- Install guide
- Real screens
hledger
Robust, fast, intuitive plain text accounting tool with CLI, TUI and web interfaces.
GitHub · collected 2026-11-10
- Docker
- Proven usage
- Install guide
- Real screens
Bigcapital
Cloud-based accounting software that streamlines bookkeeping, generates intelligent reports, and offers multi-currency support for efficient...
openalternative.co · collected 2026-10-19
- Docker
- Proven usage
- Install guide
- Real screens
Flexprice
A flexible billing platform that handles usage-based metering, credit management, and subscription billing, giving developers full control o...
openalternative.co · collected 2026-10-19
- Docker
- Proven usage
- Install guide
- Real screens
2
Paid comparison
AccountGo - Accounting and Billing Tool
AccountGo – Financial Accounting System With Ledger, Banking, Journal & Reports AccountGo is a modern accounting and billing solution design...
CodeCanyon (Envato Market) · collected 2026-11-11
- Demo
- Proven usage
- Install guide
- Real screens
E-Account - Accounting Software for any Organization
E-Account is a dynamic, open source, easy to use, user friendly web base application. Which is built in PHP – MySQL Features : - Manage Sing...
CodeCanyon (Envato Market) · collected 2026-11-11
- Demo
- Real screens
- Highly rated
- Recently updated
Sage Group
British multinational enterprise accounting software company
Wikipedia (CC BY-SA 4.0) · Wikidata (CC0) · collected 2026-10-14
- Proven usage
- Real screens
Openbravo
Company
Wikipedia (CC BY-SA 4.0) · Wikidata (CC0) · collected 2026-10-14
- Proven usage
- Real screens
Smart AMS - Accounting Management System
Overview : AMS is a well-designed Accounting & Billing Management System that gives your customers the ability to manage and create estimati...
CodeCanyon (Envato Market) · collected 2026-11-11
- Demo
- Real screens
- Recently updated
- Self-host
Smart AMS SaaS - Accounting Management System
Overview : AMS is a well-designed Accounting & Billing Management System that gives your customers the ability to manage and create estimati...
CodeCanyon (Envato Market) · collected 2026-11-11
- Demo
- Real screens
- Recently updated
- Self-host
3
Exclusive offer
Need it running today? Receive the full source of a finished product we built ourselves, turnkey.
No exclusive solution matches your choices yet
You can propose building a solution from your answers as they are. If it is adopted and built, you get it free with the same rights as a source-code buyer.
Similar category
Different field, same way of adopting.
Official
Exclusive
Finance · Trading
AI Auto-Trading
Automated trading where AI reviews every strategy and every decision is on record
Official
Exclusive
Finance · Trading
Nothing fits?
Your four answers become the proposal. Our team replies within two business days.