Invoice Ninja

Invoice Ninja is a free, open-source platform that integrates time tracking with invoicing, expense tracking, and project management. It is particularly suited for freelancers and small businesses needing combined time tracking and billing features.

Team & Project Time Tracking
5/13/2025
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Invoice Ninja

Invoice Ninja is a free, open-source platform for freelancers and small businesses to manage invoicing, time tracking, expenses, and project management. It provides a comprehensive suite of tools to streamline billing, payments, and workflow automation.

Features

  • Invoicing & Quotes: Create and send invoices and quotes, including real-time PDF previews and bulk emailing.
  • Payments: Accept online payments via multiple gateways (Stripe, PayPal, GoCardless, PayFast, Authorize.net, Mollie, BTCPay Server, and more).
  • Recurring Invoicing & Auto-Billing: Set up recurring invoices and automatic billing for clients.
  • Expense Tracking: Manage, re-invoice, and import expenses; track vendors and purchase orders.
  • Project Management: Organize projects, tasks, and track billable hours with Kanban boards and time-tracking.
  • Product & Inventory Management: Product library with inventory tracking and stock notifications.
  • Bank & Financial Integration: Sync transactions from bank, credit card, and PayPal accounts (via Yodlee integration on Enterprise plan).
  • Client Portal: Clients can view invoices, payment history, upload documents, and manage payment methods.
  • Multiple Contacts per Client: Send invoices/quotes to multiple contacts within a client organization.
  • Custom Fields & Branding: Add custom fields to invoices/quotes, upload company logo, customize invoice templates (4 free, 11 with Pro/Enterprise), and use custom domains/subdomains for client portals.
  • Localization: Supports multiple languages, currencies, and custom date/time formatting.
  • Automations: Integrate with Zapier, Make, Integrately, Pabbly, and more for workflow automation.
  • Purchase Orders: Create and manage purchase orders, convert approved POs to expenses.
  • Tax Management: Define taxes per invoice or per line item; supports inclusive/exclusive taxes.
  • Reporting: Robust reporting, accounts aging, client statements (advanced in Pro/Enterprise).
  • Notifications & Reminders: Custom email reminders for invoices, alerts for invoice views/payments, and late fee automation.
  • Custom Payment Instructions: Add instructions per invoice.
  • Deposits & Partial Payments: Accept deposits and partial payments with unique due dates.
  • Vendor & Client Document Uploads: (Enterprise) Allow document uploads on client/vendor portals.
  • API Access: REST API for integrations (Pro/Enterprise).
  • Team Collaboration: (Enterprise) Add up to 20 users, set permissions, and receive activity notifications.
  • Self-Hosting Option: Option to self-host on your own server.
  • Mobile & Desktop Apps: Available for Web, iOS, Android, macOS, Windows, Linux, and WordPress plugin.

Pricing

  • Forever Free:
    • Up to 5 clients
    • Unlimited invoices/quotes
    • 4 invoice templates
    • Core features included
  • Pro Plan (paid):
    • Unlimited clients
    • All 11 invoice templates
    • Advanced reporting
    • Custom reminders, email designs, number sequencing, late fees
    • Automated workflows and integrations
    • Custom client portal subdomain
    • Client subscriptions (recurring/auto-billing)
    • Custom fields, custom invoice/quote designs
    • Link up to 10 companies with one login
  • Enterprise Plan (paid):
    • All Pro features plus:
    • Up to 20 additional account users with permissions
    • Client/vendor document uploads
    • Banking & transaction sync (Yodlee)
    • Custom portal domain (e.g., billing.yourcompany.com)
    • Attach 3rd party files to invoices/expenses

For current pricing details and plan comparison, visit Invoice Ninja Pricing.

Category

  • Team Project & Time Tracking

Tags

  • Open-source, invoicing, expense-tracking, small-business