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.
Trusted by leading companies
About 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.
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.
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.
Professional Invoicing
Create and send unlimited invoices with real-time PDF preview, customizable templates, recurring invoices, and automatic reminder functionality.
Flexible Payment Options
Integration with numerous payment gateways like Stripe, PayPal, Braintree, Square, Mollie, and more for fast online payments and automatic status updates.
Quotes & Estimates
Create professional quotes that can be automatically converted to invoices upon approval, enabling a seamless sales process.
Project & Time Tracking
Manage projects with Kanban boards, track tasks and working hours, and convert them into invoice items with a single click.
Expense Management
Track expenses, import receipts, categorize costs, and bill them to clients if needed, with optional bank account integration.
Client Portal
Provide your clients access to a personalized portal where they can view invoices, make payments, and download documents.
Reports & Analytics
Gain detailed insights into your finances with revenue reports, client statements, aging cohorts, and customizable reporting options.
Extensive Customizations
Customize invoice designs, email templates, numbering sequences, and user permissions to match your specific business requirements.
Versatile Integrations
Connect InvoiceNinja with Zapier, Make, Pabbly, and other services for automated workflows and seamless integration into your existing tool landscape.
InvoiceNinja in Action
Experience InvoiceNinja in Action
See how simple and efficient InvoiceNinja works in practice. From installation to productive use.
Enterprise Managed Hosting
Enterprise Grade
Open source enterprise-ready for productive workloads - we run your applications with highest security standards and enterprise support
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.
Installation on Your Infrastructure
Looking for a custom solution?
We also offer customized InvoiceNinja Enterprise solutions for your specific requirements. Contact us for an individual quote.
Matching Solutions for Your Project
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Industry-leading companies rely on us
What do our customers say?
Sonja Aßer
Data Manager, ARGE
"With Timo and Robin, you're not only on the safe side technically - you also get the best human support! Whether it's quick help in everyday life or complex IT solutions: the guys from WZ-IT think along with you, act quickly and speak a language you understand. The collaboration is uncomplicated, reliable and always on an equal footing. That makes IT fun - and above all: it works! Big thank you to the team! (translated) "
Timo and Robin from WZ-IT set up a RocketChat server for us - and I couldn't be more satisfied! From the initial consultation to the final implementation, everything was absolutely professional, efficient, and to my complete satisfaction. I particularly appreciate the clear communication, transparent pricing, and the comprehensive expertise that both bring to the table. Even after the setup, they take care of the maintenance, which frees up my time enormously and allows me to focus on other important areas of my business - with the good feeling that our IT is in the best hands. I can recommend WZ-IT without reservation and look forward to continuing our collaboration! (translated)
We have had very good experiences with Mr. Wevelsiep and WZ-IT. The consultation was professional, clearly understandable, and at fair prices. The team not only implemented our requirements but also thought along and proactively. Instead of just processing individual tasks, they provided us with well-founded explanations that strengthened our own understanding. WZ-IT took a lot of pressure off us with their structured approach - that was exactly what we needed and is the reason why we keep coming back. (translated)
WZ-IT set up our Jitsi Meet Server anew - professional, fast, and reliable. (translated)
Over 50+ satisfied customers already trust our IT solutions
Let's Talk About Your Project
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.
Trusted by leading companies
