Invoice Studio provides powerful invoicing tools, but many businesses prefer a free solution. Below is a curated list of the 20 best free invoicing software alternatives, each offering core invoicing, client management, and reporting features at no cost.
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Open‑source invoicing platform with unlimited invoices, proposals, and time‑tracking on its free plan.
Full‑featured accounting suite with free invoicing, receipt scanning, and unlimited clients.
Free for up to 5 customers; includes recurring invoices, payment reminders, and multi‑currency support.
Free tier lets you create unlimited invoices, track expenses, and accept online payments.
Cloud‑based invoicing with auto‑data entry, tax calculations, and multi‑currency support.
Create and send professional invoices for free; pay‑per‑transaction fees only when clients pay.
Free invoice creation with built‑in payment processing; integrates with Square POS.
UK‑focused free accounting software with simple invoicing, expense tracking, and reporting.
Self‑hosted open‑source invoicing app with client management, quotes, and PDF generation.
Free, open‑source invoicing and accounting software for small businesses, with multilingual support.
Free tier for a single user; combines invoicing, project management, and time tracking.
Freelancer‑focused free plan with invoicing, contract templates, and payment reminders.
Mobile‑first free invoicing app; create, send, and track invoices on iOS/Android.
Open‑source accounting platform with free invoicing, expense tracking, and multi‑currency support.
Free, open‑source ERP; includes a robust invoicing module with customization options.
Desktop accounting software with invoicing capabilities; ideal for freelancers and small firms.
Free online invoicing tool with customizable templates, recurring invoices, and PDF export.