{"schema_version":1,"name":"Extend UI","slug":"extend-ui","url":"https://softwareontheweb.com/product/extend-ui","website":"https://extend.ai/ui","tagline":"React components for document viewers","description_markdown":"**Extend UI is an open-source UI kit designed to help developers build modern document applications with ease, providing a range of React components for viewing and managing various file types. It's ideal for those looking to streamline their document workflows and create more intuitive user experiences.**\n\nWhen it comes to working with documents, developers often face the challenge of creating a seamless and efficient workflow. Extend helps bridge this gap by offering a set of pre-built components that can be easily integrated into existing applications, allowing users to view, upload, and manage documents in a variety of formats, including PDF, DOCX, XLSX, and CSV.\n\n## **What is Extend?**\n\nExtend is a collection of React components that enable developers to build modern document applications with features like file upload, e-signing, and bounding box citations. It fits into a user's workflow by providing a set of reusable components that can be easily dropped into user-facing flows, agents, or internal tools.\n\n## **What are the key features of Extend?**\n\n- React components for viewing PDF, DOCX, XLSX, and CSV files, making it easy to integrate document management into your application.\n- File upload capabilities, allowing users to easily add new documents to your application.\n- E-signing functionality, enabling users to sign documents electronically and streamlining workflows.\n- Bounding box citations, providing a way to highlight and reference specific sections of a document.\n- A schema builder, giving developers the flexibility to customize the structure of their documents and data.\n\n## **Who is Extend best for?**\n\n- Developers building document management applications, looking for a set of pre-built components to simplify their workflow.\n- Businesses that need to integrate document viewing and management into their existing applications or workflows.\n- Teams working on internal tools or agents that require document upload, viewing, and management capabilities.\n\n## **What can you use Extend for?**\n\n- Building a document management system that allows users to upload, view, and manage files in various formats.\n- Creating a workflow that includes e-signing and bounding box citations for document review and approval processes.\n- Developing an application that requires integration with existing document management systems or tools.\n\n## **How does Extend compare to alternatives?**\n\n- Unlike other document management libraries, Extend provides a set of pre-built React components, making it easier to integrate document viewing and management into your application.\n- Compared to custom-building document management functionality, Extend offers a more efficient and cost-effective solution, allowing developers to focus on other aspects of their application.\n\n## **What integrations and ecosystem support does Extend offer?**\n\n- The available source material does not clearly specify integrations, but as an open-source UI kit, Extend is likely to be compatible with a range of React applications and frameworks.\n\n## **What are the pros and limitations of Extend?**\n\n- **Pros:** Easy to integrate; provides a set of pre-built components for document management; offers features like e-signing and bounding box citations.\n- **Limitations:** Not clearly stated in the available source material.\n\n## **Frequently asked questions about Extend**\n\n**What file formats are supported by Extend?**\n\nExtend supports PDF, DOCX, XLSX, and CSV file formats.\n\n**Can I customize the components provided by Extend?**\n\nWhile the available source material does not provide detailed information on customization, as an open-source UI kit, it is likely that developers can modify and extend the components to suit their specific needs.","categories":["Free","Browser","Designers (UX)","UI Library","UI Design"],"published_at":"2026-06-15T04:00:00+00:00","updated_at":"2026-06-15T04:00:16+00:00"}