Calligra Office Suite

Calligra Office Suite is a free and open-source office and graphic art software suite developed by the KDE community, providing word processing, spreadsheet, presentation, vector drawing, and project management applications. Forked from KOffice in 2010, Calligra is designed for the KDE Plasma desktop but also runs on other platforms. Key applications: Words (word processor with full text editing, styles, templates, headers and footers, tables, frames, and ODF Open Document Format support). Sheets (spreadsheet application with over 300 built-in functions, chart creation, conditional formatting, pivot tables, and ODF compatibility). Stage (presentation application with slide layouts, transitions, animations, master slides, and multimedia embedding). Karbon (vector graphics editor for creating illustrations and logos with SVG support, path operations, and gradient tools). Krita (digital painting application with brush engines, layer management, color management, and animation support, also available as standalone). Kexi (visual database application for creating databases, forms, queries, and reports without SQL knowledge). Plan (project management application with Gantt charts, resource management, task scheduling, and critical path analysis). Gemini (touch-friendly interface for 2-in-1 devices switching between desktop and tablet mode). Key features: ODF compliance (full Open Document Format support ensuring interoperability with LibreOffice and OpenOffice). Qt-based (built on Qt and KDE Frameworks for native look and feel on KDE Plasma). Plugin architecture (extensible via plugins for additional functionality and import/export filters). Cross-platform (Linux, macOS, and Windows with native KDE integration). Braindump (mind mapping and note-taking application for brainstorming and idea organization). Flow (flowchart and diagram drawing application with stencils and automatic layout).