What Are the Six Tools in LibreOffice and What Is Each Used For?

LibreOffice bundles six applications in one suite: Writer, Calc, Impress, Draw, Base, and Math. Each targets a different kind of document, and together they cover word processing, spreadsheets, presentations, diagrams, databases, and formulas. The suite is free and open source, and the project describes it as "created by you, for you." If you need a specific document type, the list below tells you which tool to open.

The six tools at a glance

Writer: word processing

Writer is the suite's word processor. The project positions it for "everything from quick notes to full-length books," so it scales from short documents to long, structured ones. Use it when the deliverable is primarily text: letters, reports, essays, manuscripts.

Calc: spreadsheets and data analysis

Calc is the spreadsheet component. Its stated purpose is to "analyze data, crunch numbers, and create clear visuals." Reach for Calc when your content is tabular or numeric — budgets, data sets, calculations, and charts.

Impress: presentations

Impress handles presentations. The project describes it as a way to "create engaging, multimedia presentations with ease and speed." Choose it for slide decks that need to be shown to an audience.

Draw: diagrams and illustrations

Draw is for graphics rather than documents. It covers "everything from simple diagrams to complex 3D illustrations," so it fits flowcharts, schematics, and standalone visual work.

Base: databases

Base is the database front end. You "build tables, forms, queries, and reports all in one place," which means it handles both storing structured data and building the interfaces and outputs around it.

Math: formulas

Math is a dedicated formula editor. You can "write mathematical formulas using a visual editor or plain text" — useful when a formula needs to stand alone or be embedded in another document.

How to choose

• Text document → Writer
• Numbers, tables, charts → Calc
• Slides → Impress
• Diagram or illustration → Draw
• Structured data with forms and reports → Base
• Mathematical formula → Math

Each tool has a guide book linked from the LibreOffice site if you want to go deeper. Because the components share one suite, you can move content between them — for example, placing a Math formula or a Calc chart inside a Writer document — rather than switching between separate programs.