Openinvoice is an Invoice Maker & Estimate App for Small Business Owners.

Looking for a simple invoice maker?
Need a fast estimate app for your contracting or service business?

Openinvoice helps contractors, plumbers, electricians, consultants, and small business owners create professional invoices and job estimates in minutes.

Create, send, and manage invoices directly from your phone.

Professional Invoice Maker
• Create invoices in under a minute
• Add your company logo and signature
• Customize taxes, discounts, and pricing
• Send professional PDF invoices
• Share via email or download

Openinvoice invoice app is perfect for contractors who need to send invoices on-site.

Estimate & Quote Generator
• Create job estimates and quotes quickly
• Break down labor and material costs
• Convert estimates into invoices instantly
• Present clean, professional documents

Ideal for construction, plumbing, electrical, HVAC, handyman services, and consulting businesses.

Contractor Invoice App
Designed for:
• General contractors
• Construction businesses
• Plumbers
• Electricians
• Service professionals
• Freelancers & consultants

If you need a contractor invoice app, job estimate app, or small business invoice maker, this tool keeps billing simple and organized.

Track Payments & Stay Organized
• Track paid and unpaid invoices
• Manage client information
• Keep all business invoices in one place

Start Free
Use the invoice maker free with limited usage.
Upgrade anytime to unlock advanced features and higher limits.

Create professional invoices, send accurate estimates, and manage your small business billing with confidence.