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5+ Online Payment Processing Tools

Online payment processing is for accepting card payments, subscriptions, invoices, and checkout payments through websites, apps, or hosted payment links. The tools here help businesses connect payment providers, manage transactions, and keep checkout or billing workflows running automatically.

Quality checked by Siteefy TeamReviewed byTheo MercerJun 16, 2026

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1 vote for Online Payment Processing, and your vote shapes this order.

Payoneer

Global payment solutions simplifying cross-border business transactions.

Freemium5(1)

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Why it fitsPayoneer is fundamentally an online payment processor, used globally for sending and receiving payments between businesses, freelancers, and marketplaces—directly analogous to Stripe, PayPal, and Wise in this function.

Also forContractor Management Global Payroll International Payment Processing+4 more

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Contra

A commission-free professional network for freelancers and companies to manage projects, contracts, and payments all in…

Freemium

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Why it fitsContra facilitates commission-free, global, and tax-compliant payments between freelancers and clients through integrated payment processing and invoicing.

Also forCommission-Free Freelance Payments Contract Management Contractor Management+5 more

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Paddle

Merchant of Record platform managing payments, billing, tax compliance, and subscriptions for digital product businesse…

Paid

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Why it fitsPaddle handles checkout, subscriptions, invoicing, taxes, and recurring billing for software businesses, so it fits online payment processing and billing workflows.

Also forBilling Management

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All Online Payment Processing tools3more

PayPal

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Why it fits: PayPal helps businesses accept online checkout payments, card payments, PayPal wallet payments, subscriptions, invoices, and payment links, so it directly matches this page.

freemiumCustom pricing5(1)Rate it

Square

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Why it fits: Square supports online payments, checkout links, invoices, subscriptions, and ecommerce checkout, making it a direct fit for businesses comparing payment-processing tools.

freemiumCustom pricingRate itAlso forInvoicingInvoicing Automation

Stripe

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Why it fits: Stripe supports online checkout, subscriptions, invoices, payment links, cards, wallets, and API-based payment flows, so it is a direct fit for businesses comparing online payment processing tools.

paidFrom $59 one-timeRate itAlso forBilling Management

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5+ Online Payment Processing Tools