| 1. | Aheadworks | Smart One Step Checkout | 63 | $299 | $1499 |
| 2. | BssCommerce | Checkout Success Page | 42 | $79 | $179 |
| 3. | Mageside | Subscribe At Checkout | 34 | FREE | |
| 4. | IWDAgency | One Page Step Checkout | 31 | FREE | |
| 5. | Amasty | One Step Checkout | 25 | $249 | $549 |
| 6. | Bolt | Bolt Checkout | 20 | FREE | |
| 7. | vConnect | Postnord Delivery Checkout | 20 | FREE | |
| 8. | Magestore | One Step Checkout | 20 | | |
| 9. | TemplatesMaster | One Step Checkout | 19 | $189 | |
| 10. | CommerceExtensions | Guest Checkout To Registered Customers | 12 | $49 | |
| 11. | BitPay | Bitpay Checkout | 3 | FREE | |
| 12. | Klarna Bank AB (publ) | Klarna Checkout | 2 | FREE | |
| 13. | Aitoc Software | Checkout Fields Manager | 0 | $125 | |
| 14. | Bambora Online A/S | Bambora Apac Online Checkout | 0 | FREE | |
| 15. | BelVG | No Po Box At Checkout | 0 | $59 | |
| 16. | bozoo.com | Checkout Products | 0 | $99 | |
| 17. | Bread | Bread Checkout | 0 | FREE | |
| 18. | Bss Commerce | Checkout Success Page | 0 | $79 | |
| 19. | Bss Commerce | One Step Checkout | 0 | $99 | |
| 20. | myPOS Europe LTD | Mypos Checkout | 0 | FREE | |
| 21. | DHL | DHL Express Rates At Checkout | 0 | FREE | |
| 22. | Elitech Systems | One Page Checkout | 0 | FREE | |
| 23. | FMEextensions | Custom Checkout Fields & Order Attributes | 0 | $99 | |
| 24. | FMEextensions | Custom Cart & Checkout Messages | 0 | $69 | |
| 25. | GlobalShopex LLC. | Gsx International Checkout | 0 | FREE | |
| 26. | Hungersoft | One Step Checkout | 0 | $179 | |
| 27. | Mageandmore | Additional Options for Checkout | 0 | $99 | |
| 28. | MageArray | Checkout Signup | 0 | $49 | |
| 29. | MageBees | One Page Checkout | 0 | $99 | |
| 30. | MageDelight | One Step Checkout | 0 | $199 | |
| 31. | MageKey | Checkout Additional Services | 0 | $99 | |
| 32. | Mageplaza | One Step Checkout | 0 | $199 | |
| 33. | Mageside | One Page Checkout Pro | 0 | $229 | |
| 34. | MageWorld | One Step Checkout | 0 | $149 | |
| 35. | PayEx | Payex Checkout | 0 | FREE | |
| 36. | Payson AB | Payson Checkout | 0 | FREE | |
| 37. | Plumrocket | Checkout Success Page | 0 | $149 | |
| 38. | PrashantBlog | Checkout Order Success Page | 0 | $39 | |
| 39. | Sigma Infosolutions | Newsletter Subscription At Checkout | 0 | $29 | |
| 40. | Sunarc | Advanced Split Order On Checkout | 0 | $169 | |
| 41. | Sunarc | Order Summary After Successful Checkout | 0 | $25 | |
| 42. | Sunarc | Split Order On Checkout | 0 | $69 | |
| 43. | Sunarc | Split Order On Checkout Pro | 0 | $149 | |
| 44. | T.H. Lassche | Improved Checkout Performance | 0 | $49 | |
| 45. | Ulmod | Checkout Success Page | 0 | $99 | |
| 46. | Ulmod | Checkout Order Comments | 0 | FREE | |
| 47. | Unicode Systems Private Limited | One Step Checkout | 0 | $199 | |
| 48. | UniPAY | Unipay Checkout | 0 | FREE | |
| 49. | WebKul | Seller Checkout Marketplace Add-on | 0 | $49 | |
| 50. | WebKul | One Step Checkout | 0 | $99 | |