SolidInvoice
Open-source invoicing software for freelancers and small businesses
Founded
N/A
Starting Price
Free
Category
Finance & Accounting
Last updated March 14, 2026
About SolidInvoice
SolidInvoice is an open-source invoicing platform available as both a free self-hosted solution and a managed cloud service. It handles unlimited invoices, quotes, recurring billing, online payments via Stripe and PayPal, client management, and multi-currency support with a simple flat-rate pricing model.
Pros & Cons
Pros
- Very affordable flat-rate pricing with no per-user fees
- Fully open-source with free self-hosted option
- Simple and clean UI focused on core invoicing
- Multi-currency support for international billing
- No credit card required for 30-day trial
Key Features
Unlimited Invoices & Quotes
Create and send unlimited invoices and quotes with professional templates
Recurring Billing
Set up automated recurring invoices with custom schedules
Online Payments
Accept payments via Stripe, PayPal, or offline methods like bank transfer and cash
Automatic Payment Reminders
Automated follow-ups for overdue invoices
Client Management
Manage contacts, notes, and activity history for each client
Multi-Currency Support
Invoice clients in their local currency for international billing
Team Collaboration
Role-based permissions for team members
Financial Reporting
Track revenue, outstanding payments, and financial performance
Pricing
Self-Hosted
Free
- Open-source
- Full feature set
- Host on your own infrastructure
- Community support
Cloud Monthly
$88/month
Best For
Freelancer Billing
Send professional invoices and accept online payments from clients without complexity
Small Business Recurring Revenue
Automate subscription and retainer billing with recurring invoice schedules
International Invoicing
Bill clients across countries in their local currency with multi-currency support
Self-Hosted Financial Control
Deploy on your own servers for complete data ownership and privacy compliance
Similar Tools
Featured In
#6
7 Best Open-Source Invoicing & Finance Tools for Freelancers (2026)
Best for simplicity — the easiest open-source invoicing tool to set up and use, ideal for freelancers who want clean invoices with online payments and nothing more.
#6
6 Best Accounting Tools for Fast Bank Reconciliation (2026)
Best for service businesses with payment gateway collection — SolidInvoice's automatic payment recording pre-reconciles most transactions through invoicing rather than bank matching.
