Open Source Quoting Software
Free and open source quoting software - credible, self-hostable replacements for the proprietary tools in this space. Every listing keeps your data in open formats and surfaces real GitHub signals so you can judge what is actively maintained before you commit.
3 quoting software100% OSI-approved licensesUpdated June 2026
Showing 1-3 of 3
Crater
Invoice Software
Open source invoicing app for tracking expenses, payments, invoices, and estimates
AGPL-3.0PHPSelf-host
InvoiceShelf
Invoice Software
Self-hosted invoicing app for invoices, estimates, expenses, and payments
AGPL-3.0PHPSelf-host
SolidInvoice
Invoice Software
Open-source invoicing for freelancers and small businesses with self-hosted or hosted deployment
MITPHPSelf-host