Try a real document before replacing an office suite: fonts, macros and complex layouts may differ. LibreOffice covers writing, spreadsheets and presentations; Joplin organizes notes, while PDFsam Basic rearranges PDF pages. Microsoft Office can remain a compatibility reference without being your only option.
Write documents, build spreadsheets and prepare presentations without a subscription.
Platforms
Windows · macOS · Linux
Guidance & sources
Test important shared documents and exports before moving an existing workflow.
Edition and requirements can change; check the official source before installing.
Try a real document before replacing an office suite: fonts, macros and complex layouts may differ. LibreOffice covers writing, spreadsheets and presentations; Joplin organizes notes, while PDFsam Basic rearranges PDF pages. Microsoft Office can remain a compatibility reference without being your only option.
Organize notes and reference material; choose synchronization and backup arrangements deliberately.
Platforms
Windows · macOS · Linux
Guidance & sources
Try note organization, export and recovery before moving your entire knowledge base.
Edition and requirements can change; check the official source before installing.
Try a real document before replacing an office suite: fonts, macros and complex layouts may differ. LibreOffice covers writing, spreadsheets and presentations; Joplin organizes notes, while PDFsam Basic rearranges PDF pages. Microsoft Office can remain a compatibility reference without being your only option.
Split and combine PDFs locally when you only need to rearrange document pages.
Platforms
Windows · macOS · Linux
Guidance & sources
Use for document assembly; do not assume it is a full PDF text editor.
Edition and requirements can change; check the official source before installing.
Try a real document before replacing an office suite: fonts, macros and complex layouts may differ. LibreOffice covers writing, spreadsheets and presentations; Joplin organizes notes, while PDFsam Basic rearranges PDF pages. Microsoft Office can remain a compatibility reference without being your only option.
Evaluate team file sharing and collaboration with a hosting arrangement you can maintain.
Platforms
Web · Self-hosted server
Guidance & sources
Decide who maintains the server, access permissions and tested backups.
Edition and requirements can change; check the official source before installing.
Start with your needs: communicate, organize work, manage documents, protect access and keep recoverable backups. Add accounting, design, analysis and AI only where they solve a real problem. Decide who owns administration and test exports before choosing a vendor. Self-hosting adds maintenance; free software does not mean free operation. A listing is guidance, not an endorsement or a compliance guarantee.
Manage email accounts, calendars and contacts in an open-source client.
Platforms
Windows · macOS · Linux · Android
Guidance & sources
Test a sample project before switching; file compatibility and workflows can differ. Check the linked edition, requirements and license.
Edition and requirements can change; check the official source before installing.
Try a real document before replacing an office suite: fonts, macros and complex layouts may differ. LibreOffice covers writing, spreadsheets and presentations; Joplin organizes notes, while PDFsam Basic rearranges PDF pages. Microsoft Office can remain a compatibility reference without being your only option.
Edit documents, spreadsheets and presentations in a free desktop suite.
Platforms
Windows · macOS · Linux
Guidance & sources
Free Desktop Editors; hosted and enterprise products have separate plans. Test complex Microsoft Office documents and macros before migration.
Edition and requirements can change; check the official source before installing.
Try a real document before replacing an office suite: fonts, macros and complex layouts may differ. LibreOffice covers writing, spreadsheets and presentations; Joplin organizes notes, while PDFsam Basic rearranges PDF pages. Microsoft Office can remain a compatibility reference without being your only option.
Collect references and create citations and bibliographies.
Platforms
Windows · macOS · Linux · iOS · Android
Guidance & sources
Test a sample project before switching; file compatibility and workflows can differ. Check the linked edition, requirements and license.
Edition and requirements can change; check the official source before installing.
Try a real document before replacing an office suite: fonts, macros and complex layouts may differ. LibreOffice covers writing, spreadsheets and presentations; Joplin organizes notes, while PDFsam Basic rearranges PDF pages. Microsoft Office can remain a compatibility reference without being your only option.
Connect local Markdown notes in a personal knowledge base.
Platforms
Windows · macOS · Linux · iOS · Android
Guidance & sources
Free app; Sync and Publish are optional paid services. Local notes are not a full replacement for shared Notion databases.
Edition and requirements can change; check the official source before installing.
Try a real document before replacing an office suite: fonts, macros and complex layouts may differ. LibreOffice covers writing, spreadsheets and presentations; Joplin organizes notes, while PDFsam Basic rearranges PDF pages. Microsoft Office can remain a compatibility reference without being your only option.
Self-host a collection of PDF merging, splitting and conversion tools.
Platforms
Self-hosted server · Web
Guidance & sources
MIT core and separately licensed proprietary/engine/cloud components. Check the exact edition and feature terms. Self-hosting keeps control with you but requires server maintenance.
Edition and requirements can change; check the official source before installing.
Try a real document before replacing an office suite: fonts, macros and complex layouts may differ. LibreOffice covers writing, spreadsheets and presentations; Joplin organizes notes, while PDFsam Basic rearranges PDF pages. Microsoft Office can remain a compatibility reference without being your only option.
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