Invio

Invio is a minimalist, self-hosted invoicing application focused on quickly creating invoices and sharing them with clients without unnecessary CRM or project-management features. It is designed to be fast, transparent, and easy to run while keeping your billing data under your control.

Key Features

• Create and manage invoices with a streamlined, low-configuration workflow
• Share invoices via secure public links so clients can view without accounts
• SQLite-backed storage for a simple, lightweight deployment
• JWT-based authentication for the admin session with configurable TTL
• Built-in rate limiting to help protect login endpoints from brute-force attempts
• Security headers support (including optional HSTS) for safer web deployments

Use Cases

• Freelancers who want a lightweight invoicing tool they fully control
• Small businesses that need a simple invoice workflow without bundled CRM features
• Privacy-conscious teams that prefer local ownership and exportable billing data

Limitations and Considerations

• Built to stay minimalist, so it may not suit complex accounting workflows or full ERP needs

Invio is a practical choice if you want a fast, no-bloat invoicing tool with sensible security defaults and a simple storage layer. Its focus on public invoice sharing and a straightforward workflow makes it well-suited for individuals and small teams.