Online Payment

Digital payment processing for online transactions.

Rankings

  1. 1. Stripe

    Developer-first online payments platform with global reach

    Stripe provides a developer-first payments platform that unifies online and in-person payments through a single, code-friendly API. It supports 100+ payment methods, multi-currency processing, and a rich ecosystem including Stripe Checkout, Stripe Elements, Radar fraud protection, Stripe Billing for subscriptions, Stripe Connect for marketplaces, and Stripe Issuing for cards. It also offers Stripe Terminal for in-person payments and a robust dashboard for merchants of all sizes. Stripe is known for its strong developer experience, extensive integration options with major eCommerce platforms, and ongoing innovations with AI-friendly tooling. While pricing is straightforward for many use cases, some small or micro businesses may find cost comparison with other gateways advantageous, and the breadth of features can require engineering manpower to optimize. Stripe operates globally, with dual HQ in San Francisco and Dublin and offices worldwide.

    Rated 4.7

  2. 2. PayPal

    Global payments platform trusted by merchants and consumers

    PayPal offers a broad payments ecosystem including PayPal, Venmo, Pay Later, invoicing, and Braintree integration. Its merchant pricing covers card processing, PayPal/Venmo payments, and ACH options with widely used checkout flows and a mature fraud protection framework. The brand’s global reach, trusted consumer trust, and diverse payment methods (including Venmo and Pay Later) make it appealing for sellers with international or multi-channel needs. Recent moves include PayPal World interoperability announcements and ongoing merchant services, as well as strategic expansion into broader wallet interoperability. The main trade-off is that PayPal’s standard online processing fees can be higher than some competitors, and merchants sometimes experience variations by region and volume. PayPal is headquartered in San Jose, California, and maintains a broad global footprint.

    Rated 4.6

  3. 3. Adyen

    Global payments platform with enterprise-grade controls

    Adyen provides a unified platform for online, in-store, and in-app payments with a focus on enterprise scale. It supports local payment methods, multi-currency settlement, risk management, and a single API for payments, reporting, and analytics. Adyen is known for its strong suitability for multi-national merchants and marketplaces, offering precise, end-to-end control over acquiring and processing. In 2025, Adyen continues to expand North America and Asia, while maintaining its European roots and robust risk tooling. The platform excels in large-scale deployments but can be more complex to implement than some SME-focused gateways. Adyen was founded in 2006 and is headquartered in Amsterdam, Netherlands.

    Rated 4.6

  4. 4. Checkout.com

    Transparent, flexible pricing for global merchants

    Checkout.com offers a cloud-based payments platform with a choice of pricing models (Interchange++ or flat-rate) and a single Unified Payments API. It supports 150+ currencies and 45+ country coverage, with robust analytics, fraud monitoring, and a direct acquiring path. The platform is favored by large brands for its global reach, risk controls, and ability to tailor plans with dedicated account management. In 2025, Checkout.com continues to expand the U.S. footprint while maintaining strong European coverage. While the pricing and plan structure can require sales engagement, many merchants value the clarity and transparency compared with some competitors. Checkout.com originated as Opus Payments and rebranded in 2012; HQ is in London, UK.

    Rated 4.5

  5. 5. Mollie

    European PSP with simple online payment integration

    Mollie is a European payment service provider offering a streamlined, API-first platform that supports major card schemes, Apple Pay/Google Pay, and local methods (iDEAL, Bancontact, Klarna, etc.). Its pricing is per-transaction with clear euro-denominated fees and volume discounts for larger merchants. Mollie emphasizes a straightforward onboarding experience, robust developer tooling, and wide ecosystem integrations with popular eCommerce platforms. The company focuses on Europe but supports global use through multiple currencies and cross-border capabilities. Founded in Amsterdam, Mollie remains a top choice for SMEs seeking easy integration and predictable costs, while some US-centric merchants may find local alternatives more appealing.

    Rated 4.6

  6. 6. GoCardless

    Direct debit payments gateway for recurring payments

    GoCardless specializes in bank-to-bank ACH/direct debit payments, making it a strong fit for subscriptions and recurring billing. It offers transparent per-transaction fees with caps, multi-currency processing via Wise, and easy API and dashboard integrations. While GoCardless excels for recurring payments in regions where direct debit is common (UK, EU, US), it may be less optimal for one-time card payments or for merchants seeking broad card networks. The company operates globally with a London headquarters and a growing US presence, continuing to expand its bank payment capabilities and partnerships.

    Rated 4.3

  7. 7. Worldpay from FIS

    Global gateway for merchants with enterprise reach

    Worldpay from FIS serves large, multi-region merchants with a global payments platform, combining acquiring, gateway, risk, and analytics capabilities. Following strategic deals in 2025, Worldpay remains a key player for enterprises needing scale across many markets. While Worldpay offers broad coverage and robust enterprise tooling, pricing is typically quote-based and can be opaque without direct sales engagement. Merchants should compare total cost of ownership against interchange-based models. Worldpay has a long history in payments and continues to operate with a strong footprint in the US and international markets.

    Rated 4.0

  8. 8. Klarna

    BNPL and payments network powering flexible checkout

    Klarna combines BNPL financing with a broad payments network, offering Pay in 4, Pay in 30, and Pay Over Time, plus connections to Apple Pay, Google Pay, and Klarna’s own card/One-Time Card. Klarna is expanding globally, including in-store and online channels, and has pursued high-profile partnerships and an IPO. Pricing for merchants varies by product and region; BNPL fees are typically higher than standard card processing but can improve average order value and conversions. Klarna has grown rapidly in the US and Europe and went public in 2025, reinforcing its place as a leading BNPL player with ongoing investment in AI and product expansion. Klarna’s HQ is in Stockholm, Sweden, with a significant US presence and a growing UK footprint.

    Rated 4.0