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Top Rated Accounts Payable Software with Open source - Page 2

Last updated: September 2026

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389 software options

ProcurementExpress.com logo

Purchase orders for federally funded nonprofits

Purchase order software for federally funded nonprofits. POs, approvals, and documentation in one place before the invoice hits AP. 423 reviews, 4.7. Integrates with QuickBooks and Sage Intacct.

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Condo Control logo

Property management software for HOAs and condos

Condo Control is a property management solution for Condos, HOAs and property managers, with tools for managing residents, payments, maintenance, events, documents, service requests, amenities bookings, and more. The cloud-based app also has a self service portal for residents and managers.

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Spendesk logo

Smart, trackable spending at work. From Approvals to Zen.

Spendesk streamlines the AP process with invoice automation, approval workflows, and complete control over the entire invoicing lifecycle. No more manual processes. Save days every month with simple, secure accounts payable software.

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Invoiced logo

Accounts receivable automation software

Invoiced is an accounts receivable automation software designed to streamline and optimize invoice-to-cash processes. It helps businesses handle the entire accounts receivable workflow, from automated invoicing and collections to customizable workflows for AR processes. The software integrates with a company's existing ERP and CRM systems, improving performance across applications.

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Mercury logo

Banking for startups and growing companies

Mercury streamlines accounts payable with built‑in bill pay, approvals, and vendor payments. Teams can pay vendors via ACH, wire, or check, track payment status in real time, and reduce manual reconciliation with accounting integrations.

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TrackMySubs logo

Subscription tracking and management solution

TrackMySubs is a subscription tracking application with alerts and reminders, exchange rate conversion, payment type management and more

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DataSnipper logo

Intelligent automation platform for audit and finance teams

DataSnipper is an Excel-native platform for audit and finance, bringing AI and Excel Agents into your workpapers to automate testing, reconciliation, and documentation with full traceability.

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Reckon One logo

Accounting software made for every small business

Easy and affordable online accounting and payroll software for Australian small businesses. Plans start at just $24 per month.

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CasetrackerLaw logo

Web-based, 24/7 access, user-friendly, cost-effective,

CaseTrackerLaw is a web-based software specifically designed to streamline and automate debt collection tasks. It is designed to automate each step of a collection agency or attorney, including debt placement, debt recovery, business management and administration, sales and marketing, and more.

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OneStream logo

Corporate performance management solution for enterprises

OneStream is a unified corporate performance management (CPM) solution which enables businesses to manage their financial reporting, budgeting & forecasting

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Payhawk logo

Spend management platform that automates expense processing

Payhawks accounts payable solution enables you to control, manage and process company invoices at scale and take care of company payments, all in one place. With automated invoice processing, businesses can eliminate manual data entry and reduce errors, saving valuable time and resources.

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QuickBooks Enterprise logo

Enterprise accounting, FSM and inventory management solution

QuickBooks Desktop Enterprise is an accounting software for small businesses which provides users with real-time access to customer, employee, and vendor information. The software includes tools for managing inventory, shipping, sales orders, pricing, tasks, invoicing, reporting, and more.

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Pipefy logo

Cloud-based and AI-powered process orchestration platform

Pipefy is a business process orchestration and automation platform that enables teams to digitize workflows using AI agents and no-code tools. The platform features customizable workflow builders, pre-built AI agents for various departments, and integration capabilities with enterprise messaging systems like WhatsApp, Teams, and Slack. It includes process management tools, custom forms and portals, analytics dashboards, and enterprise-grade security with regulatory compliance features.

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Datamolino logo

Data capture software for invoices, bills and receipts

Save time on purchase bill processing! Datamolino automatically captures data from your invoices, bills & receipts and sends it straight to Xero or QuickBooks.

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Nickel logo

Stop getting nickel-and-dimed, get Nickel and done.

The only payments processor built for industry, ACH transactions are always free, and card processing rates are competitive (2.9%). Nickel automatically syncs with your QuickBooks, mails checks on your behalf, can generate unique payment links tied to invoices, and so much more.

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webexpenses logo

Software for smarter expense management & invoice processing

Webexpenses provides simple, intuitive cloud-based software for smarter expense management and invoice processing, with full support and seamless integration.

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ActivityHD logo

ERP software for accounting and business management

ActivityHD is a flexible and comprehensive ERP system that offers customizable tools and management for various complex processes. The software assists businesses of all sizes with payroll processing, accounting, business management and more.

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Zil Money logo

Software for streamlined transaction processing

Banking services are provided by our partner bank, Member FDIC.

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Hybrent logo

Eliminate procurement headaches with Hybrent.

Hybrent is a cutting-edge, cloud-based solution that helps healthcare facilities automate and streamline your supply chain, procurement, and inventory control processes.

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Users also considered
Bellwether Purchasing Software logo

#1 Purchasing Software since 1985. Money back Guarantee

Rated #1 since 1985 for businesses creating 50-1000 POs/mo & tracking purchases, payments & invoicing. Evolved to fully automated cloud-based ecosystem. Trusted by 1000+ customers including Coca-Cola, HP, & US Army. Basic & Enterprise software with Money Back Guarantee!

Read more about Bellwether Purchasing Software

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Qonto logo

The finance solution that energizes SMEs and freelancers.

Qonto is the leading European business finance solution with over 450,000 customers.
The company makes day-to-day banking easier for SMEs and freelancers by offering an online business account combined with finance tools, such as invoicing, bookkeeping, and spend management.

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Metaprise logo

Global Leader in AI-Powered AR/AP Solutions

AI-driven AR/AP solutions that help businesses optimize cash flow, automate tasks, and manage global transactions.

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Chipax logo

Financial management software

Software online pensado para la gestión o administración financiera, fácil y simple de usar.

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Emburse Nexonia logo

Expense management for ERP & accounting systems

Extend the capabilities of your accounting system to include expense management with Nexonia. Empowering organizations through configurable controls and support for complex approval workflows.

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Users also considered
FreshBooks logo

Invoice and accounting software tailored to small businesses

FreshBooks is accounting software that helps small business perform accounting tasks, conduct invoicing, manage expenses, and more.

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Users also considered