Streamline subscription management with billabear. For SaaS startup founders.
beginnerโฑ 30 minutes๐ต Free
748 stars57 forksPHPQuality 8/10Updated 7/8/2026100% free ยท open source
What it is
Makes and manages online subscriptions with a customizable billing system.
What you can make with it
Automations like: when a new customer signs up for your SaaS, send them a welcome email and generate their first invoice.
How it helps
Saves time setting up and managing subscriptions, letting you focus on your core business.
Real use case example
"A founder launches a new SaaS and needs to set up subscription plans and automate invoice generation. They use Billabear to create a billing system in 30 minutes, then set up an automation to send welcome emails to new customers and generate their first invoices. The founder now has a professional-looking billing system up and running, saving them time and hassle."
If you're new
Pick this up when you're starting your SaaS and need a simple billing system.
If you're senior
Reach for this when you need quick and customizable subscription management for your existing SaaS.
Common confusion cleared up
Billabear is not a payment gateway, but rather a billing system that integrates with existing payment gateways.
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Pairs with
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Why we list it on WorkflowStacks: Free and open-source, providing a cost-effective alternative to proprietary billing systems.
What it does
Billabear streamlines subscription management and billing for SaaS startup founders by providing a comprehensive system to track and manage subscriptions
Install / run
composer create-project billabear/billabear
When to use it
โขWhen you need to manage multiple subscription plans for your SaaS product
โขWhen you want to automate recurring billing and payment processing
โขWhen you require a centralized dashboard to track subscription metrics and customer insights
Quick start
1Clone the billabear repository from GitHub: git clone https://github.com/billabear/billabear.git
2Run the composer install command to set up the project: composer install
3Configure the database settings in the .env file: DB_HOST=localhost, DB_DATABASE=billabear, DB_USERNAME=root, DB_PASSWORD=password
4Run the database migration command to set up the schema: php artisan migrate
Heads up: Billabear requires PHP 8.1 or higher and the Composer package manager to be installed on your system, as well as a MySQL database for storing subscription data
Saves to your device
Topics
billing
billing-system
generator
invoice-generator
parthenon
receipt
rest-api
saas
stripe
stripe-billing
subscription
subscription-management
What's inside โ free to inspect
No purchase needed
Read the entire source before you build โ unlike paid marketplaces that hide it behind a buy button.