What is ThinkFree?

ThinkFree is a self-hosted online office suite and document editor platform that combines a word processor, spreadsheet, and presentation tool in one productivity solution. Positioned in the office suites category, it focuses on secure collaboration and private cloud deployment for organizations that need full control over their data. ThinkFree Office supports both Microsoft Office and OpenDocument formats, giving teams browser-based access to document creation, editing, and viewing without relying on third-party SaaS infrastructure. It is used by government agencies, enterprises, cloud service providers, and system integrators that require data sovereignty and strict compliance.

Originally developed as a web-based office productivity suite, ThinkFree has evolved into a broader self-hosted productivity platform with editing APIs, private cloud storage, and knowledge management capabilities. The product has expanded from simple online document editing to a full stack of enterprise solutions: document creation and collaboration, centralized storage, a knowledge and workflow hub, and AI-enabled insights and automation. Today, ThinkFree is part of Hancom’s portfolio but continues to be presented as a standalone brand for organizations that want an on-premise, AI-ready office suite.