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Billing and Invoicing Software for Linux - Page 5

Last updated: February 2026

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259 software options

Kill Bill logo

Open Source Subscription Billing and Payment Platform

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Manage your billing and invoicing without SaaS vendor lock-in. The Kill Bill billing system and payments platform is feature-rich out-of-the-box and highly customizable. It supports complex billing schemes, including one-offs, recurring, and usage-based plans.

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InvoiceBerry logo

Online invoicing & expense tracking for SMBs and freelancers

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InvoiceBerry offers online invoicing & expense tracking for small businesses, freelancers and sole traders

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Candis logo

Automated invoice management for SMBs and finance teams

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Automated invoice management for finance teams and suited for small and medium-sized businesses. Teams can upload, approve, and, export invoices with just a few clicks.

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Altoviz logo

Boost your business

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Altoviz is a cloud-based billing and invoicing solution, which helps small to large businesses manage online payments, expenses, accounting procedures, and more. The platform offers various features such as activity tracking, treasury, pre-made templates, document management, and quoting.

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Fatture in Cloud logo

Invoicing software

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The invoicing software that helps you manage your business. Fatture in Cloud includes e-invoicing, quotes, payments, reports on business performance, and more.

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Sage Network logo

Lockstep is AR automation that works as hard as you do.

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Lockstep automates the billing & invoicing process by automatically tracking aging invoices and sending personalized emails, text and calls that guide customers to a payment portal. Our solution accelerates cash flow, lowers costs, focuses staff on high priority task, and makes customers happier.

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Twikey logo

Billing and Invoicing Solution

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Twikey automates internal payment processes, so companies can collect invoices faster and create more customer payment convenience with Legal e-Mandates and a customizable payment follow-up system.

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DigitalRoute logo

Mediation and usage data processing software

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DigitalRoute is a data loss prevention tool that helps businesses connect the solution with any system in the IT infrastructure to collect, process, enrich, and distribute usage data to billing and configure, price, and quote (CPQ) applications.

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Deltek Ajera logo

Project management solution for A&E industry

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Deltek Ajera is a project management solution that helps businesses streamline processes related to project accounting, scheduling, tracking, analytics, and more from within a centralized platform. It allows staff members to utilize earned value analysis tool to monitor project budgets and generate projections based on multiple criteria, such as job type, resources, departments, and project managers.

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Werx logo

Cloud-based construction management software.

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Werx simplifies billing and invoicing for contractors with tools like AIA billing, T&M tracking, and QuickBooks integration. Send professional invoices, manage retainage, and offer clients secure online payments via Stripe to accelerate cash flow and keep projects running smoothly.

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FacturaScripts logo

Open source ERP software for small business

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FacturaScripts is an open source invoice software and ERP for small business. Is written in PHP 7 and can be extended by plugins.

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Trigger logo

Visible Productivity

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TriggerApp is a project management app that combines collaboration, client management and invoicing in one easy to use and powerful, cloud-based app. It allows you to log and track time, collaborate with team & clients, plan projects and assign tasks, share files, set and monitor budgets, and more.

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CSP Control Center logo

Pure-play CSP Billing Automation

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CSP Control Center is a cloud platform that helps Microsoft CSP partners to sell, bill, provision, and manage Microsoft cloud solutions.

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ToolTime logo

User-friendly job management software for tradespeople

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ToolTime is a user-friendly software that revolutionises job management for tradespeople. ToolTime users can generate quotes and invoices in seconds, document jobs on the go, accurately track and manage time, schedule appointments and much more.

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IFS Cloud logo

IFS Cloud is a composable enterprise software application.

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A composable enterprise application delivering ERP, Service Management and Enterprise Asset Management capabilities on a single platform with IFS.ai as the backbone of the solution.

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PayIt logo

Payment processing software for the government sector

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PayIt is a point of sale software designed to help businesses in the government sector digitize services and consolidate payments regarding vehicle registrations and licensing. The platform enables managers to add money and automate payments on specific dates from selected accounts.

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HDPOS smart logo

Billing & inventory software for all retail businesses

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HDPOS smart is a web-based billing and inventory software for small to mid-size businesses that comes with features such as barcode scanning, discount management, gift card processing, and invoice management. The system is integrated with many payment gateways to facilitate all payment methods.

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Frisbii logo

Subscription management, recurring billing and payments

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Billwerk+ is made to realize the full potential of your subscription business model! Aiming to reduce cost & effort and maximize growth & scalability, Billwerk+ automates all recurring business, financial and marketing processes in compliance with all relevant regulatory requirements.

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itbid logo

innovating connects us

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We are experts in digitizing and optimizing processes related with the relationship with suppliers with technological solutions tailored to customer needs.

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Tolteck logo

Tolteck, the best app for estimating and invoicing software.

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Tolteck will allow you to easily and fastly documents that will be clear and professional. Designed for self-employed persons or small companies, less than 5 employees. No matter the type of trade: general, electricity, plumbing, remodelling, even landscaping! We adapt to all.

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Die Agenturverwaltung logo

Project management and budgeting software for agencies

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Die Agenturverwaltung is a project management software designed to help businesses generate cost estimates and manage accounting processes. Administrators can document employees’ working hours based on hours and weeks across multiple projects on a unified interface.

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Gestify logo

Cloud-based invoicing tool for businesses

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Gestify is a cloud-based solution that helps small businesses manage their finances, sales, and paperwork. This software is accessible from any device or location, so users can always access it when they need to. Gestify makes it easy for small businesses to track their finances and send/receive invoices via email.

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HighRadius Accounts Receivable logo

Autonomous Receivables Solution for office of CFO

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Agentic AI platform for CFOs integrating 180+ agents to automate Order-to-Cash, AP, Treasury & Financial Close.

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Standard ERP logo

Standard ERP is a powerful system

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Standard ERP is an intuitive business platform helping you reach your productivity goals and can be tailored to your business needs.

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Saleoid logo

A Premium CRM Software that Truly Performs

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EQUP is designed is to bridge the gap between the currently available solutions and the requirements of small business owners.

Things that no one else offer
- Inventory pooling
- Free version has no feature restrictions
- Dedicated resource to manage your account.
- Industry-specific solutions

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