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InvoiceNinja

InvoiceNinja is a powerful open-source software for invoicing, online payments, expense tracking, and project management. The platform is specifically designed for freelancers and small businesses, offering all the tools needed for professional financial and business management.

All Expertises

Trusted by leading companies

  • Rekorder
  • Keymate
  • Führerscheinmacher
  • SolidProof
  • ARGE
  • Boese VA
  • NextGym
  • Maho Management
  • Golem.de
  • Millenium
  • Paritel
  • Yonju
  • EVADXB
  • Mr. Clipart
  • Aphy
  • Negosh
  • ABCO Water
About the Technology

About InvoiceNinja

Technology Logo

InvoiceNinja is a powerful open-source software for invoicing, online payments, expense tracking, and project management. The platform is specifically designed for freelancers and small businesses, offering all the tools needed for professional financial and business management.

As an experienced InvoiceNinja partner, we support you in installing, configuring, and customizing this versatile business solution to your individual requirements. Leverage the benefits of automated invoicing and professional client communication for your business.

Open Source
Self-Hosted
Enterprise Ready
GDPR compliant

Why InvoiceNinja with WZ-IT?

We install, host and operate InvoiceNinja for your company - either on our secure, GDPR-compliant infrastructure in Germany or other locations, as well as on-premise in your own environment.

With 24/7 monitoring, enterprise support, backups and professional maintenance, we ensure maximum availability and reliable operation of your InvoiceNinja instance.

Features

InvoiceNinja Features

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Professional Invoicing

Create and send unlimited invoices with real-time PDF preview, customizable templates, recurring invoices, and automatic reminder functionality.

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Flexible Payment Options

Integration with numerous payment gateways like Stripe, PayPal, Braintree, Square, Mollie, and more for fast online payments and automatic status updates.

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Quotes & Estimates

Create professional quotes that can be automatically converted to invoices upon approval, enabling a seamless sales process.

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Project & Time Tracking

Manage projects with Kanban boards, track tasks and working hours, and convert them into invoice items with a single click.

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Expense Management

Track expenses, import receipts, categorize costs, and bill them to clients if needed, with optional bank account integration.

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Client Portal

Provide your clients access to a personalized portal where they can view invoices, make payments, and download documents.

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Reports & Analytics

Gain detailed insights into your finances with revenue reports, client statements, aging cohorts, and customizable reporting options.

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Extensive Customizations

Customize invoice designs, email templates, numbering sequences, and user permissions to match your specific business requirements.

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Versatile Integrations

Connect InvoiceNinja with Zapier, Make, Pabbly, and other services for automated workflows and seamless integration into your existing tool landscape.

You got questions? We are here to help!
Demo

InvoiceNinja in Action

InvoiceNinja Screenshot
Video Demo
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Experience InvoiceNinja in Action

See how simple and efficient InvoiceNinja works in practice. From installation to productive use.

Live DemoStep by StepBest Practices
Enterprise Managed Hosting

Enterprise Managed Hosting

Enterprise Managed Hosting

Enterprise Grade

Open source enterprise-ready for productive workloads - we run your applications with highest security standards and enterprise support

GDPR-compliant hosting
ISO 27001 certified data centers
Individual security measures & access controls
Server location Germany, USA, Asia
Guaranteed response times & SLAs
High availability
24/7 monitoring & maintenance
Individual backup strategies & retention periods
Telephone support
Personal contact person
Professional migration of existing systems
Employee training
Discounts for 1+ year term: 4% (1Y), 7% (2Y), 10% (3Y)
from
199,90/month
"Standard" service level
zzgl. MwSt.
*Prices may vary depending on application
Service level as a basis
Up to 2 apps included
Compute resources can be booked separately
Combine e.g. BookStack with Nextcloud and KeyCloak as SSO provider - support and maintenance for all apps included
ISO
27001
24/7
Monitoring
GDPR
compliant

Why Enterprise Managed Hosting?

Open source software for business-critical processes requires professional maintenance, continuous updates, and enterprise-grade support. With our InvoiceNinja Enterprise Managed Hosting, you get the necessary infrastructure and support to reliably operate open source in production environments. Backups, SLAs, telephone support, and personal contact - so you can focus on your core business.

Bring Your Own Infrastructure

Installation on Your Infrastructure

Installation on your own infrastructure
On-premise or in your cloud
Full control over your data
Custom configuration
Complete documentation
Initial setup & configuration
Optional support and maintenance contract
Price on request
plus optional support & maintenance
Installation Details & Pricing

Looking for a custom solution?

We also offer customized InvoiceNinja Enterprise solutions for your specific requirements. Contact us for an individual quote.

Send Email

Interested in Invoice Ninja?

Good choice – we'll help you get started or with operations.

1/2 – Interest50%

Response within 24h – no spam, no sales pressure.

Manage Your Stack in the Customer Portal

As a Managed Service customer at WZ-IT, you have access to our exclusive portal: Monitor your infrastructure in real-time, schedule maintenance, request quotes, and get direct support – all in one central location.

  • Real-time infrastructure status
  • Reschedule maintenance windows yourself
  • View complete access logs
  • Direct support without detours
Explore Portal
WZ-IT Customer Portal Dashboard
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  • Maho Management
  • Golem.de
  • Millenium
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What do our customers say?

Let's Talk About Your Idea

Whether a specific IT challenge or just an idea – we look forward to the exchange. In a brief conversation, we'll evaluate together if and how your project fits with WZ-IT.

E-Mail
[email protected]

Trusted by leading companies

  • Rekorder
  • Keymate
  • Führerscheinmacher
  • SolidProof
  • ARGE
  • Boese VA
  • NextGym
  • Maho Management
  • Golem.de
  • Millenium
  • Paritel
  • Yonju
  • EVADXB
  • Mr. Clipart
  • Aphy
  • Negosh
  • ABCO Water
Timo Wevelsiep & Robin Zins - CEOs of WZ-IT

Timo Wevelsiep & Robin Zins

CEOs of WZ-IT

1/3 – Topic Selection33%

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