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Top Rated Payment Processing Software with Open source - Page 12

Last updated: September 2026

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679 software options

ApprovalMax logo

Robust financial controls made easy

ApprovalMax is an award-winning B2B software platform used by businesses around the world to build robust financial controls. It streamlines the approval process by allowing users to create automated workflows to approve bills and invoices.

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Paywint logo

Cloud-based financial platform for businesses

PayWint is a cloud-based financial platform that allows users to send, receive, and manage money.

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Easyfatt logo

On-premise solution for billing and invoicing.

Easyfatt is an on-premise solution that helps businesses streamline the billing and invoicing process on a centralized interface. The solution offers an electronic invoicing module that handles all phases of the process including the creation of invoices, sending them to the Italian SDI system, and storing them compliantly. It also manages contributions, withholdings, and various VAT requirements.

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Opayo logo

All-in-one payment service solution

Elavon provides smart and sensible card payment solutions made just for businesses by their expert team. Elavon understands payments and offers flexible plans and technology that grows with a business, helping them focus on their goals while Elavon takes care of the payment services.

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Abowire logo

Abowire is an expert-driven solution to accelerate growth.

Abowire is an expert-driven solution to automate and scale your recurring revenue & accelerate your growth.

Our commitment is to fast-track your journey to subscription success, providing unparalleled customization and support.

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INO CX logo

All-in-One Business Communication Solution

INO CX is a cloud-based omnichannel call center software, which helps businesses aggregate customer interactions from various channels such as voice, SMS, email, chat in a centralized platform.

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MageNative Magento Mobile App logo

MageNative app for Magento 2

MageNative app for Magento 2 Store owners
When it comes to expanding to M-commerce vertical, all you need is a single click.

Read more about MageNative Magento Mobile App

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Yaspa logo

We enable fast, seamless instant payments (Pay-by-bank)

Yaspa is an award-winning provider of identity and open banking payment solutions (Pay-by-Bank). Our fast, seamless payments are 36x times faster than traditional payment methods such as credit and debit cards.

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Monetizze logo

Solution for buying and selling physical and digital product

Monetizze is a payment solution for selling physical and digital products, aimed at producers, customers, and affiliates. The platform also includes several tools that help producers develop a more effective buying journey, increasing their sales potential.

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Chargent logo

Credit card / ACH payment processing for Salesforce

Payment processing solution that helps manage online payment transactions through integration with Salesforce AppExchange & more.

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BillFlash logo

Designed by billing experts, for billing experts.

Automate your entire billing workflow.

BillFlash billing software streamlines your entire billing operations, giving you full control of an automated and holistic approach to patient billing.

Read more about BillFlash

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Datalog TMS logo

All-in-one treasury management system for groups

Datalog TMS is a treasury management system enabling corporate treasury departments to automate and manage activities. It centralizes automation, tracking, and control of payments and cash flow across global accounts. The SaaS platform helps users configure and manage intra-group transfers, loans, and financial compensation, simplifying bank reconciliations, internal invoice payments, and money transfers while ensuring security, compliance, and scalability.

Read more about Datalog TMS

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CM.com Payments Platform logo

Accept Online and POS Payments on one single platform

CM.com Payments Platform allows customers to pay anywhere, anytime, and with their favorite payment methods. The Payments Platform of CM.com is a fully integrated all-in-one platform that will help users accept payments all over the world, in multiple currencies, and via different channels.

Read more about CM.com Payments Platform

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Collexo logo

A unified suite of payment and financial products

Collexo is a unified education payment platform designed to streamline fee collection and management for educational institutions. It offers automation, multiple payment modes, and real-time reporting to help organizations improve cash flow and financial operations. Collexo's scalable and customizable features make it suitable for institutions of all sizes, from K-12 schools to universities and EdTech platforms.

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Atlantic Money logo

The first ever fixed fee money transfer service.

When compared to previously recognized low-cost providers like Wise or Revolut, businesses can expect savings of up to 99 percent per transfer, amounting to thousands of euros with each transaction.

Read more about Atlantic Money

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Checkout Page logo

Payment processing tool for small & medium-sized businesses

Checkout Page is designed to help small and medium businesses and early-stage startups accept payments in no time. Checkout Page lets you quickly set up a beautiful check out experience that’s simple, intuitive, and accessible from any device.

Read more about Checkout Page

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Blackthorn Payments logo

Focus on your customers instead of your payment processes

Payment platform built within Salesforce offering field service payments, subscriptions and billing, and more.

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PayiQ logo

Payment processing solution

PayiQ is a user-friendly cloud-based payment platform that is built to transform the payment experience by processing transactions with speed and security.

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Zelis logo

Modernizing the Healthcare Financial Experience

A connected platform that bridges gaps in the financial system and aligns interests across healthcare insurers, providers, and consumers.

Read more about Zelis

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GPayments logo

Stop Payment Fraud. Reduce Chargebacks. Ensure SCA Complianc

The complete EMV 3D Secure (3DS) Fraud Prevention solution. GPayments helps banks, acquirers, payment processors and merchants stop payment fraud, reduce chargebacks, and ensure SCA compliance. Includes a full 3DS testing environment.

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ROH logo

Revenue optimization software for the hospitality industry

ROH is a revenue optimization platform that drives revenue, conversions, and collaboration for the hospitality industry’s top asset owners, property operators, and hotel brands. ROH’s cloud-based, mobile-friendly software integrates with the systems you already use, making ROH even easier to use.

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PayXpert logo

Payment processing software for retailers & online merchants

PayXpert is a payment processing software that provides retailers and online merchants with a payment gateway to streamline POS payment operations. Users can track and monitor daily transactions using heatmaps and access information related to error codes, credit card providers, and more.

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Spreedly logo

Best-in-market payment system.

Payment orchestration is the new standard.

Our PCI-compliant solution lets you connect once and stay ahead of your payments strategy.

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PayNet Banking Platform logo

White-labeled Neo Banking and Payments Solutions

PayNet offers fully managed and ready to use - Neo Banking and Payment software solutions to enable use cases on:

- Payments
- Lending
- Deposits

Read more about PayNet Banking Platform

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WEX Benefits logo

Hire to Retirement Benefits Made Simple

WEX is the global commerce platform that simplifies business fuel cards, employee benefits, and payment solutions. The company offers a range of products and services to help businesses streamline their operations, including fuel cards, fleet management tools, employee benefits administration, and digital payment processing.

Read more about WEX Benefits

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