Assembly Line

Alternatives to Authorize.net in 2026

9 commercial products, led by Adyen, Checkout.com and Stripe Payments. 5 open-source projects you can run yourself, led by Btcpayserver, Bitcart and Open Payment Host.

Open source

  1. 1
    Btcpayserver btcpayserver

    Accept Bitcoin payments. Free, open-source & self-hosted, Bitcoin payment processor.

    Complete system Production-ready You want to accept Bitcoin directly into your own wallet without a third-party processor.

    ★ 7.9k MIT C# Active, pushed today
  2. 2
    Bitcart bitcart

    Bitcart is a free and open-source self-hosted payment processor for BTC, LTC, BCH, XMR, ETH, TRX, USDT and more

    Complete system Usable You want to accept several cryptocurrencies, not just Bitcoin, on your own server.

    ★ 1k MIT Python Active, pushed today
  3. 3
    Open Payment Host abishekmuthian

    Sell what you want without paying double commissions. Self hosted alternative for Gumroad, Buy Me a Coffee, Ko-fi etc.

    Complete system Experimental You sell a few digital products and want to avoid platform commissions on top of Stripe fees.

    ★ 243 AGPL-3.0 Go Active, pushed 34 days ago
  4. 4
    OwnPay own-pay

    Self-hosted, open-source payment gateway. Manage brands, gateways, and transactions on your own infrastructure.

    Complete system Experimental You want to test a self-hosted gateway layer over local payment methods and can audit it.

    ★ 213 AGPL-3.0 PHP Active, pushed today
  5. 5
    PipraPay PipraPay

    Empower your payment operations with PipraPay, the free and open-source, plugin-based platform for automated payments and full workflow control.

    Complete system Experimental You sell online in Bangladesh and want to automate mobile wallet payment confirmation yourself.

    ★ 330 AGPL-3.0 PHP Slowing, pushed 5 months ago

Commercial

  1. 1
    Adyen Adyen

    Run payments, manage your data, and offer financial products in one platform. Adyen is purpose-built for the world

    Building block Production-ready A large merchant processing high volumes across many countries wants one acquirer for every channel.

    2k readers a month Since 2006 Commercial
  2. 2
    Checkout.com Checkout.com

    Boost your acceptance rate, cut processing costs, fight fraud, and create extraordinary customer experiences with Checkout.com's payment solutions.

    Building block Production-ready A high-volume online merchant, especially in Europe or the Middle East, wants negotiated rates and acquiring in many markets.

    994 readers a month Commercial
  3. 3
    Stripe Payments Stripe, Inc.

    Capture more revenue with a unified payments solution that eliminates the need for one-off merchant account, payment gateway, and processor integrations.

    Building block Production-ready You need to accept payments online and want the best-documented API with wide country coverage.

    Commercial
  4. 4
    PayPal Braintree PayPal

    Explore PayPal Braintree and how our end-to-end payment platform can help drive growth. Learn more about PayPal Braintree on the PayPal website.

    Building block Production-ready You want card processing and PayPal or Venmo checkout through one integration.

    Commercial
  5. 5
    GoCardless GoCardless

    Collect and send payments, minimise failures, and fight fraud. No more chasing payments and no expensive card fees.

    Complete system Production-ready You collect regular invoices or subscriptions and want lower fees and fewer failures than cards.

    406 readers a month Since 2011 Commercial
  6. 6
    Worldpay Worldpay

    We power global commerce by providing exceptional payments technology and expertise to businesses. Find out how Worldpay can help you.

    Building block Production-ready A large retailer or established merchant wants a major acquirer with in-store and online acceptance.

    9 readers a month Commercial
  7. 7
    Mollie Mollie

    One platform to accept payments, manage money, and access funding. Eliminate financial friction and grow your business with Mollie.

    Building block Production-ready A European small or midsize merchant wants simple pricing and broad local payment methods.

    Commercial
  8. 8
    Square Online Payments Block, Inc.

    Building block Production-ready A business already using Square in store wants online payments on the same account and reporting.

    Commercial
  9. 9
    Razorpay Razorpay

    Online Payments India: Start Accepting Payments Instantly with Razorpay

    Building block Production-ready A business selling to customers in India wants local payment methods, especially UPI.

    Commercial

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