--- source_url: "https://selfhosting.sh/best/office-suites/?utm_source=openai" title: "Best Self-Hosted Office Suites in 2026 | selfhosting.sh" mirrored_at: 2026-08-23T03:01:42.923Z host: selfhosting.sh cited_in_42a: true mirror_canonical: "https://index.42a.ai/selfhosting.sh/best/office-suites/index__q__utm_source_openai" --- > **Original source:** https://selfhosting.sh/best/office-suites/?utm_source=openai By Alex Thornton office-suites February 21, 2026 Updated: February 24, 2026 ## Quick Picks Use Case Best Choice Why Best overall OnlyOffice Closest to Microsoft Office, best OOXML compatibility, Nextcloud integration Best for privacy CryptPad End-to-end encrypted, zero-knowledge architecture Best Nextcloud companion OnlyOffice or Collabora Both integrate natively, OnlyOffice has better formatting fidelity Best for teams OnlyOffice Real-time co-editing, comments, track changes, version history ## The Landscape Self-hosted office suites fall into two categories: document editors that integrate with file sync platforms (OnlyOffice, Collabora/LibreOffice Online) and standalone collaborative platforms (CryptPad). Your choice depends on whether you already run Nextcloud or Seafile, and how much you care about end-to-end encryption. ## The Full Ranking ### 1\. OnlyOffice Document Server — Best Overall OnlyOffice provides browser-based editors for documents, spreadsheets, and presentations with the best Microsoft Office format compatibility of any open-source suite. If your workflow involves `.docx` and `.xlsx` files, OnlyOffice handles them better than any alternative. **Key strengths:** - Native OOXML support — opens and saves `.docx`, `.xlsx`, `.pptx` without conversion artifacts - Real-time co-editing with cursor tracking, comments, and track changes - Integrates with Nextcloud, Seafile, ownCloud, and other platforms via connectors - Macro support (JavaScript-based) - PDF viewing and form filling Spec Value Docker image `onlyoffice/documentserver:9.3.1` Image size ~1.6 GB RAM (idle) ~500 MB RAM (under load) 1-2 GB Supported formats DOCX, XLSX, PPTX, ODF, PDF, CSV, TXT Max concurrent editors Depends on RAM (~20 per GB) License AGPL v3 (Community Edition) **Pros:** - Best `.docx`/`.xlsx` fidelity of any self-hosted option - Mature, actively developed - Excellent Nextcloud integration - Plugin and macro support **Cons:** - Heavy — 1.6 GB image, 500 MB+ RAM baseline - Community Edition limited to 20 concurrent connections - No end-to-end encryption - Complex initial configuration **Best for:** Teams that exchange Microsoft Office files and need formatting fidelity. The natural choice alongside Nextcloud. \[Read our full guide: [How to Self-Host OnlyOffice](https://selfhosting.sh/apps/onlyoffice/)\] ### 2\. CryptPad — Best for Privacy CryptPad is a zero-knowledge collaborative suite where the server never sees your content. All documents are end-to-end encrypted in the browser before reaching the server. It includes a rich text editor, spreadsheet, Kanban, whiteboard, presentation, code editor, and form builder. **What makes it different:** - True end-to-end encryption — the server operator cannot read documents - No account required for basic use (anonymous pads) - Built-in apps: documents, sheets, presentations, Kanban, polls, whiteboard, code, forms - OnlyOffice integration for OOXML editing within CryptPad’s encrypted environment Spec Value Docker image `cryptpad/cryptpad:version-2026.2.0` Image size ~220 MB RAM (idle) ~200 MB RAM (under load) 500 MB - 1 GB Encryption End-to-end (client-side) Storage Per-user quotas, encrypted blobs License AGPL v3 **Pros:** - Zero-knowledge encryption — unmatched privacy - Lightweight compared to OnlyOffice - Multiple built-in app types beyond office docs - No external integrations needed — standalone platform - Active development with monthly releases **Cons:** - OOXML compatibility is limited without OnlyOffice integration - No desktop apps — browser-only - Encrypted storage means no server-side search - Smaller community than OnlyOffice - Document sharing requires CryptPad-specific links (no standard file access) **Best for:** Privacy-conscious teams and individuals who want collaborative editing without trusting the server. Journalists, activists, and anyone handling sensitive documents. \[Read our full guide: [How to Self-Host CryptPad](https://selfhosting.sh/apps/cryptpad/)\] ### 3\. Collabora Online (LibreOffice Online) — Best LibreOffice Integration Collabora Online is the commercial, supported version of LibreOffice Online. It brings the full LibreOffice rendering engine to the browser, offering the widest format support of any self-hosted office suite. The open-source CODE (Collabora Online Development Edition) is free for self-hosting. **Key strengths:** - Full LibreOffice rendering engine — handles formats that trip up other editors - ODF-native — best for organizations standardized on `.odt`/`.ods` - Integrates with Nextcloud, ownCloud, Seafile - Supports complex spreadsheets and documents that other editors struggle with Spec Value Docker image `collabora/code:25.04.9.2.1` RAM (idle) ~400 MB RAM (under load) 1-2 GB Format support ODF, OOXML, legacy Office formats, PDF License MPL 2.0 (CODE) **Pros:** - Widest format compatibility — handles legacy Office formats - ODF-first design - Mature rendering engine (LibreOffice core) - Good Nextcloud integration **Cons:** - Heavy resource usage - UI feels less polished than OnlyOffice - OOXML rendering less accurate than OnlyOffice - Smaller self-hosting community **Best for:** Organizations that primarily work with ODF formats or need to open legacy/unusual document types. ## Full Comparison Table Feature OnlyOffice CryptPad Collabora CODE Documents Yes Yes Yes Spreadsheets Yes (advanced) Yes (basic) Yes (advanced) Presentations Yes Yes Yes OOXML fidelity Excellent Limited Good ODF support Good Limited Excellent End-to-end encryption No Yes No Real-time collaboration Yes Yes Yes Nextcloud integration Yes (connector) No Yes (built-in app) Mobile support Via Nextcloud app Browser (responsive) Via Nextcloud app Offline editing No No No Kanban / whiteboard No Yes No RAM baseline ~500 MB ~200 MB ~400 MB Docker image size ~1.6 GB ~220 MB ~1.5 GB License AGPL v3 AGPL v3 MPL 2.0 ## Choosing the Right Suite **You need Microsoft Office compatibility →** OnlyOffice. Nothing else handles `.docx` formatting as well. **Privacy is your top priority →** CryptPad. Zero-knowledge encryption is non-negotiable for sensitive work. **You run Nextcloud and want integrated editing →** OnlyOffice (better OOXML) or Collabora (better ODF). Try both — Nextcloud supports switching between them. **You want the lightest option →** CryptPad at ~200 MB RAM. OnlyOffice and Collabora both need 400-500 MB minimum. **You need more than just office docs →** CryptPad includes Kanban, whiteboard, polls, and code editing out of the box. - [How to Self-Host OnlyOffice](https://selfhosting.sh/apps/onlyoffice/) - [How to Self-Host CryptPad](https://selfhosting.sh/apps/cryptpad/) - [OnlyOffice vs CryptPad](https://selfhosting.sh/compare/onlyoffice-vs-cryptpad/) - [Best Self-Hosted File Sync](https://selfhosting.sh/best/file-sync/) - [Best Self-Hosted Note Taking Tools](https://selfhosting.sh/best/note-taking/) - [Replace Google Docs](https://selfhosting.sh/replace/google-docs/) - [Replace Microsoft 365](https://selfhosting.sh/replace/microsoft-office/) - [Docker Compose Basics](https://selfhosting.sh/foundations/docker-compose-basics/) - [Reverse Proxy Setup](https://selfhosting.sh/foundations/reverse-proxy-explained/) - [Backup Strategy](https://selfhosting.sh/foundations/backup-strategy/)