Build AI agents that edit existing DOCX, XLSX, PPTX, and ODF files inside your application.

Thinkfree Document Editor SDK combines an embeddable Office editor with JavaScript APIs for targeted document editing. Your code can work with paragraphs and tables in Word documents, cells and charts in spreadsheets, and slides and shapes in presentations.

Connect your own AI agent and model provider to Thinkfree's document tools. Your application manages the tool-calling loop and decides which actions to execute. Users can review the result and continue editing the same document in the embedded editor.

Use Thinkfree Document Editor SDK to revise a contract clause, update figures in a workbook, or change a presentation slide without moving the document into a separate AI tool. Thinkfree Document Editor SDK also supports self-hosted deployment for teams that need control over their environment and storage.

Key features

• AI agent integration

  Expose structured document tools to your own agent. Your application supplies the model connection, manages the tool-calling loop, and decides which actions to execute.

• One document for users and code
  An agent or application can make changes through APIs, and users can review and refine the result in the embedded editor.

• Object-level Office editing
  Work with paragraphs and tables in Word documents, cells and charts in spreadsheets, and slides and shapes in presentations.

• Embedded editing UI
  Add Word, Spreadsheet, and Presentation editing directly to your web application instead of sending users to a separate tool.

• Self-hosted deployment
  Run Thinkfree's document editor in your environment and connect the document service to your storage.

Playground: https://playground.developers.thinkfree.com/playground/

Documentation: https://www.developers.thinkfree.com/docs/