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Top Rated Payment Processing Software with Open source - Page 22

Last updated: September 2026

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679 software options

Eloficash logo
(0)

DSO, collection software, collection software

Collection software solution, including risk prevention, collection and handling of disputes and litigation. Risk management upstream of the invoice to reduce the risk of non-payment.

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Transaction Cloud logo
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Tax Compliance, Subscription, and Payment Platform

Transaction Cloud is a platform for payments, sales tax / VAT /GST compliance (automated collection, filing), subscription management, recurring billing, and fraud protection for SaaS.

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pismo logo
(0)

A scalable platform for creating financial products

Pismo is a scalable platform for banking and fintech companies that work with the creation of banking and payment services. It makes it possible to develop a complete portfolio of digital products, consisting of deposits, loans, digital wallets, and more. It is available in English and Portuguese.

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Binamik Platform logo
(0)

SaaS platform that makes purchasing tours easy.

SaaS platform that makes purchasing tours easy. It allows travelers to plan and buy tours for trips in advance, all in one place.

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VGS logo
(0)

Secure collection, protection & exchange of sensitive data

VGS platform by Very Good Security enables users to securely collect, protect, and exchange sensitive data such as card details, personal finance data, identification documents, vacation rental payments, & credentials, using data redaction and alias value systems which cannot be reverse engineered

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Zeal logo
(0)

Loyalty and customer data on card machines you already use

Card-linked loyalty and customer analytics that run inside the payment terminal itself. Zeal installs as an SDK on PAX, Ingenico, Verifone, Nexgo, Sunmi and Castles hardware, recognises returning customers from a tokenised card reference, and needs no app, no new device and no change of processor.

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MasterSoft Fees Management System logo
(0)

Collect school, college and university fees online.

Fee management software is a solution that enables schools and colleges to collect, manage and report on all school fees paid.

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Astral Payments logo
(0)

Integrated hotel payments, simplified

Integrated hotel payments: Say goodbye to payment friction and hello to seamless transactions with Shiji’s unified payment service.

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Atlar logo
(0)

AI treasury platform for finance teams

Atlar is an AI-native treasury platform consolidating cash management, payments, forecasting, and bank reconciliation. It offers real-time visibility across banks and entities, integrates with ERP systems like NetSuite, SAP, and Microsoft Dynamics, and includes AI tools for forecasting and analysis. Atlar provides enterprise-grade security, supports investment management, and tracks debt, delivering a comprehensive solution for financial operations.

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Paystone logo
(0)

Boosting business growth with every transaction.

Paystone is a payment processing, gift card, and customer loyalty software platform. It combines these solutions into one system to help businesses grow with every transaction. Features include gift card and loyalty programs, marketing automation tools, secure online and in-person payment processing, and analytics.

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Payment Gateway logo
(0)

Payment processing & transaction monitoring solution

AOPAY Best Payment Gateway API Solution allow businesses to accept secure online payments. Process cards, UPI, net banking, wallets, and recurring payments with real-time tracking, high success rates, and enterprise-grade security.

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INCHARGE logo

WE move MONEY. In between friends, roommates, timezones...

INCHARGE, a financial app that's not just another banking app.

It's your go-to pal for all things money - because who says finance has to be complicated? With just a few taps, you'll be all set with an account and ready to dive into a world of seamless transactions. Get started now for free!

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Digital Bill logo
(0)

Cloud-based QR bill payment for restaurants

Digital Bill is a cloud-based QR code payment solution for restaurants, cafes, and bars, supporting card, Apple Pay, and Google Pay.

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mCollect POS logo
(0)

QR payment collection app catered for all types of business.

mCollect POS is a digital QR payment collection designed for businesses to collect QR payments via dynamic QR codes.

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NOQ logo

Waitlist and online ordering management platform

NOQ is a waitlist platform that helps bars, restaurants, and hotels generate more footfall and increase sales by offering a streamlined digital ordering experience. Users can improve customer satisfaction by providing services to reduce wait times at the bar or table.

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E-NACH API logo
(0)

Automate Recurring Payments Easily with AOPAY E-NACH API

AOPAY Best E-NACH API Solution allows businesses to automate recurring bank payments securely and efficiently. Ideal for loans, subscriptions, EMIs, and insurance, it offers easy integration, RBI-compliant mandates, real-time status updates, and faster collections.

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Finom logo
(0)

Finom accelerates and facilitates business finances.

Finom is an all-in-one solution designed for European entrepreneurs. Open business accounts in clicks, process various payments, streamline invoicing, and enjoy stress-free finance management.

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TokenEx logo
(0)

Tokenization, key and encryption management platform

TokenEx is cloud-based data security, key and encryption management platform designed to help small to large businesses with tokenization, compliance regulations and cloud vaulting to protect sensitive data such as PII, PCI, PHI, and even information in unstructured formats.

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Sertifi logo

Take the complexity out of the agreement process.

We help businesses around the world to finalize their agreements securely, efficiently, and conveniently. 

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askacharge.com logo
(0)

White-label EV charging software on open standards

askacharge.com is charge point management software for operators who want their own brand, not their vendor's. It speaks OCPP 1.6J and 2.0.1, so it runs on hardware you already own, plus OCPI 2.2 for roaming. Flat 20 EUR a month, no per-charger fees, no lock-in.

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B33 logo
(0)

AI-powered accounts receivable automation platform

B33 is an AI-powered accounts receivable automation platform designed for medium-sized businesses. Users can streamline their invoicing, optimize cash flow, and reduce billing time by up to 80%.

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Silverflow logo
(0)

Cloud-based solution for handling credit card processing

Silverflow is an online platform for payment service providers (PSPs) and bank-acquiring services. It processes credit and debit card payments using a simple REST API instead of common (rigid) banking protocols.

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MediPay logo
(0)

Healthcare payment software built for healthcare providers

MediPay is a healthcare payment software that streamlines transactions and enhances financial processes for healthcare providers.

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NMI Payment Gateway logo
(0)

Freedom to Build, Brand, and Scale Payments

NMI Gateway is a purpose-built, partner-first payments platform that delivers white-label, omnichannel infrastructure. With 150+ processor connections and 235K+ supported devices, it enables flexible, scalable, and branded payment solutions across retail, mobile, and online channels.

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iugu logo
(0)

Payment processing & financial automation software

Iugu is a cloud-based financial automation software, which helps businesses in the Brazilian market process online payments, measure revenue growth, and monitor recurring bills. Features include receipt management, credit card processing, fraud detection, invoice scheduling & account reconciliation.

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