# Open-source alternatives for Office suites

> Spreadsheets, documents and presentations that replace a Microsoft 365 subscription.

## Paid products
- [Open-source alternatives to Microsoft 365](https://repoquarry.dev/alternatives/microsoft-365.md): Paid subscription office suite (Personal, Family and Business plans) with Excel, Word, PowerPoint, online co-editing and OneDrive cloud storage. Pricing: See pricing page.

## Top ranked projects
1. [CryptPad](https://repoquarry.dev/projects/cryptpad.md): End-to-end encrypted collaboration suite with real-time documents, sheets, presentations, forms and an encrypted drive, self-hosted or on public instances. Commercial use: Partial.
2. [ONLYOFFICE Docs (Document Server)](https://repoquarry.dev/projects/onlyoffice-docs.md): Self-hosted online office suite with document, spreadsheet and presentation editors and real-time co-editing of .docx, .xlsx and .pptx files. Commercial use: Partial.
3. [LibreOffice](https://repoquarry.dev/projects/libreoffice.md): Mature free office suite from The Document Foundation with Writer (documents), Calc (spreadsheets), Impress (presentations), Draw, Base and Math. Commercial use: Partial.
4. [ONLYOFFICE Desktop Editors](https://repoquarry.dev/projects/onlyoffice-desktopeditors.md): Free desktop office suite with document, spreadsheet, presentation and PDF editors, built around Office Open XML (.docx, .xlsx, .pptx). Commercial use: Partial.
5. [GridCraft](https://repoquarry.dev/projects/gridcraft.md): Clean-room, Excel-style spreadsheet written in pure Rust, with XLSX as its native format, PivotTables, charts and an MCP server. Part of the ArtCraft suite. Commercial use: Confirmed.
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Source: RepoQuarry (https://repoquarry.dev/categories/office). Data licence: CC BY 4.0. Quotes are from project documentation and belong to their authors.