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About WebSDK

Explore the benefits of Sumsub WebSDK and initiate your integration.

Sumsub’s WebSDK (Software Development Kit for web applications) is a set of tools that helps you integrate specific features into your websites or web applications with minimal coding. Without WebSDK, the integration process becomes much harder, as you need to manually build and test every part of the solution. Instead of creating required tools from scratch, you can configure our WebSDK to fit your particular workflow.

How Sumsub WebSDK works

Our WebSDK allows you to verify applicants on your website or web application using a built-in Sumsub widget that you can customize based on your preferences. Your applicants go through all verification steps, while Sumsub handles every stage by collecting, processing, and verifying all the provided data and documents. Once the verification is complete, you receive a final status update on the process.

The WebSDK solution is designed to optimize your conversion rates and ensure a smooth integration, with attention to detail at every step.

Sumsub WebSDK features

Apart from orchestrating the entire verification process in a user-friendly interface that will handle all the stages—from uploading the data to processing it and generating the results—the WebSDK also allows you to:

  • Customize colors and styles to display your verification flows exactly as you want them to be for your applicants. The design is also adaptive and mobile friendly, making it easy to use on any device, especially with WebSDK 2.0.
  • Use Liveness & Face match to improve conversion rates and minimize fraud.
  • Guide your applicants through verification using hints and suggestions at each step.
  • Let your applicants continue verification on mobile devices at any step, for example when they need to take a picture of the document or pass the Liveness check.

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Note

To get started and integrate Sumsub WebSDK solution, follow the steps in this article.

WebSDK 2.0 and WebSDK 1.0

The following table compares WebSDK 2.0 with WebSDK 1.0:

Area of application WebSDK 2.0 WebSDK 1.0

Design
  • The UI is tailored to be comfortably used both on desktop and mobile platforms.
  • Provides mobile-friendly layouts and controls.
  • Accessibility is improved — larger and higher contrasting elements are used.
  • Comes with the fresh design aesthetics, offering your users a modern look and feel.
  • The UI is intended more for desktop platforms. In some cases, accessibility may not be at its best for users passing verification on mobile devices due to small controls.
  • The WebSDK does not always follow the accessibility guidelines, such as Web Content Accessibility Guidelines.

Customization
  • A complete no-code solution coming with a WYSIWYG editor that allows you to change the visual part instantly.
  • You can switch between light and dark themes with just a couple of clicks.
  • A greater level of autonomy and quicker design iterations with no need to be a frontend developer to make adjustments to the UI appearance.
  • Requires developers expertise; non-developers may find it challenging to make visual adjustments.
  • Only basic customizations are available out of the box. To change the visual part, you need to be an expert to create and add CSS code.

Guidance
  • With the WebSDK 2.0, your appliants always have a clear understanding as to what actions to take to get verified quickly.
  • Every step of the verification procedure is accompanied by examples and hints.
  • The visual guide explains permissible and impermissible actions, and thus ensures a smoother and more informed user experience.
  • The WebSDK may not provide comprehensive hints and examples in certain cases.
  • Some verification steps could potentially be ambiguous or unclear for the process relies more on intuition.

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Note

Before upgrading to WebSDK 2.0, make sure to check the migration guide.

Updated about 24 hours ago