OpenOffice

Apache OpenOffice, honestly reviewed. Hundreds of millions downloaded it. Far fewer use it today.

TL;DR

• What it is: Free, open-source office productivity suite — Writer (word processor), Calc (spreadsheet), Impress (presentations), Draw (vector graphics), Base (database), Math (equation editor) [README][website].
• Who it’s for: Users who need zero-cost offline document editing with no subscription, particularly on older hardware or in environments where LibreOffice hasn’t been evaluated yet.
• Cost savings: Eliminates Microsoft 365 ($6.99–$12.50/user/month) or Google Workspace ($6–$18/user/month) for teams that only need local document editing, no real-time collaboration.
• Key strength: Completely free, Apache-2.0 licensed, works on Windows, macOS, Linux, FreeBSD, and even OS/2. 398+ million downloads — genuinely proven at scale [README].
• Key weakness: Development has slowed dramatically since LibreOffice forked in 2010. The interface feels dated, modern Microsoft Office compatibility is inconsistent, and there is no real-time collaboration. The honest recommendation for most people is LibreOffice first.

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What is OpenOffice

Apache OpenOffice is a desktop office suite. It gives you six applications — Writer, Calc, Impress, Draw, Base, and Math — that cover the same ground as Microsoft Office’s core apps: Word, Excel, PowerPoint, and Access [README][website].

The history matters here. OpenOffice.org started as Sun Microsystems’ StarOffice codebase released to open source in 2000. Sun got acquired by Oracle in 2010. A large portion of the contributor community, unhappy with Oracle’s stewardship, forked the project into LibreOffice under The Document Foundation. A year later, Oracle donated the remaining codebase to the Apache Software Foundation, which is where Apache OpenOffice lives today [1].

That fork is the central fact you need to understand about OpenOffice in 2026. The project has 1,165 GitHub stars — a number that is low not because the software is obscure, but because the open-source energy moved to LibreOffice. The 398+ million downloads cited on the website accumulated over more than two decades, including the pre-fork era when OpenOffice.org was the only free office suite option [README][website].

What Apache OpenOffice is today: a stable, maintained-but-not-growing desktop office suite under the Apache-2.0 license, releasing roughly one bugfix version per year. The most recent release was 4.1.16 on November 10, 2025 — the previous one was 4.1.15 in December 2023 [website].

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Why people choose it

The case for OpenOffice divides into two eras: why people chose it, and why some people still choose it today.

The original case was straightforward: Microsoft Office was expensive, StarOffice cost money, and OpenOffice.org was genuinely free with a similar feature set. The OSnews review from 2002 [1] captures the pitch well: Writer’s look and feel was familiar enough that Word users could start immediately, Calc handled Excel functions, Impress covered PowerPoint — and none of it cost anything.

The current case is narrower. Most users evaluating a free office suite today will be pointed toward LibreOffice, which branched from the same codebase and has had 15 years of more active development since. The AppMus comparison [3] correctly identifies OpenOffice Writer’s strengths as: completely free and open-source, comprehensive formatting tools, excellent built-in PDF export, integrated equation editor, and good compatibility with older Microsoft Word formats. These are real advantages — particularly the PDF export, which remains one of the cleanest in any free office tool.

The limitation cited in every review is consistent: “Compatibility with the newest Microsoft Word features can be inconsistent. Interface feels somewhat dated compared to modern software” [3]. The Flameeyes technical blog [4], written by a developer who used OpenOffice extensively during 2008–2010, documents recurring technical frustrations — and the project has not dramatically changed its architecture since.

The honest answer to why people still choose it: inertia, zero cost, and the Apache-2.0 license. For organizations running it on older infrastructure, migrating to LibreOffice isn’t free either — it requires IT effort and user retraining. For users who installed OpenOffice years ago and it works for their needs, there’s no burning reason to switch.

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Features

OpenOffice is a desktop suite, not a server application. You install it on a machine and it runs locally. The six components:

Writer — full-featured word processor. Styles, tables, mail merge, spell check, templates, built-in macros via OpenOffice Basic. Saves in ODF (.odt) natively; imports and exports .doc, .docx (with caveats on newer features), RTF, and others. Exports to PDF directly from the menu [1][README].

Calc — spreadsheet with function library, pivot tables (called DataPilot), charting, and macro scripting. Handles .xls and .xlsx, though complex Excel files with advanced formatting or Power Query dependencies will lose fidelity [README][3].

Impress — presentation builder analogous to PowerPoint. Supports .ppt and .pptx import/export. Animations, transitions, master slides — the feature set covers most common presentation work [README][1].

Draw — vector graphics editor. Handles basic illustration work and diagramming. Can export SVG. Less capable than Inkscape for serious vector work but useful for flowcharts and technical diagrams embedded in documents [README].

Base — database front-end with support for HSQLDB, MySQL, PostgreSQL, and other backends via JDBC/ODBC. Lets non-technical users build simple form-based database UIs [README].

Math — equation editor. Writes mathematical notation that renders cleanly in Writer documents [README][1].

What’s missing vs. modern alternatives:

• No real-time collaboration. Two people cannot edit the same document simultaneously.
• No cloud sync built in — you manage your own file storage.
• No AI writing assistance.
• No web-based editing (you install a desktop app, that’s it).
• Macro language (OpenOffice Basic) is not compatible with VBA — Excel macros require porting.

The compatibility ceiling with Microsoft Office is real. For documents that use older formatting (Word 97–2010 era), compatibility is strong [1][3]. For files relying on newer OOXML features — SmartArt, advanced conditional formatting rules, co-authoring metadata, PowerPoint morph transitions — expect degradation.

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Pricing: SaaS vs self-hosted math

OpenOffice has no cloud subscription and no self-hosted server component — it’s desktop software. The relevant comparison is against the office suites that charge recurring fees:

Microsoft 365:

• Personal: $69.99/year (~$5.83/month), 1 user, 5 devices
• Business Basic: $6/user/month (web and mobile apps only, no desktop)
• Business Standard: $12.50/user/month (includes desktop apps)
• A 10-person team on Business Standard pays $1,500/year

Google Workspace:

• Business Starter: $6/user/month
• Business Standard: $12/user/month
• A 10-person team on Starter pays $720/year

Apache OpenOffice:

• License: $0 (Apache-2.0) [README]
• Download: free
• Per-user cost at any scale: $0

For a 10-person team doing local document work with no collaboration requirements: OpenOffice saves $720–$1,500/year over commercial suites. Over three years, that’s $2,160–$4,500 — real money for a bootstrapped founder.

The catch: Google Workspace and Microsoft 365 aren’t just office editors. They include email, calendar, video calls, shared drives, and mobile access. OpenOffice replaces only the editing component. If you drop Microsoft 365, you need substitutes for Exchange, Teams, SharePoint, and OneDrive — or you’re only partially reducing the bill.

Realistic savings scenario: A solo founder or very small team (2–3 people) that uses Google Docs only for writing and spreadsheets, keeps files in Dropbox or Nextcloud already, and doesn’t need real-time co-editing. Switching to OpenOffice + local file storage + a free email provider saves $6–$12/month per user. Worthwhile if the constraints fit.

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Deployment reality check

“Deployment” for OpenOffice means installing a desktop application. There’s no server to configure, no Docker compose to write, no reverse proxy to set up.

Installing it:

• Download the installer from openoffice.org — Windows .exe, macOS .dmg, Linux .rpm or .deb [website]
• Run the installer (requires administrator privileges on Windows)
• Done. The whole process takes 5–15 minutes depending on hardware.

For organizations deploying across many machines:

• Windows: use Group Policy (GPO) with the MSI installer for centralized deployment
• Linux: OpenOffice is available in most distribution package managers, though the version may be older than the official release
• macOS: no MDM-friendly PKG format — enterprise macOS deployment is messier than with Microsoft Office

Known rough edges:

• File association conflicts with Microsoft Office — on a machine with both installed, you need to manually set which app opens .docx files
• The macOS build lags in polish compared to the Windows version [README confirms macOS support but the build process is complex]
• Building from source is described in the README as a multi-hour process — relevant only if you need a custom build [README]
• Java is required for some features, including Base and some mail merge functionality — an additional dependency to manage in locked-down environments

For a non-technical founder installing it on their own machine: it’s as straightforward as installing any desktop app. For IT deploying it to 50 workstations: standard mass deployment tooling works, but enterprise support is community-only — no support contract available.

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Pros and cons

Pros

• Genuinely zero cost, forever. Apache-2.0 license means no per-user fees, no trial expiration, no “free tier limits.” You can install it on every machine you own [README].
• Strong PDF export. Consistently cited as one of the best PDF export implementations in any office suite — handles complex documents well [3].
• Cross-platform. Windows, macOS, Linux, FreeBSD, and OS/2 — the range of supported platforms is broader than most alternatives [README].
• No internet required. Fully offline. No account creation, no cloud dependency, no usage telemetry forcing itself on you.
• Equation editor (Math) is genuinely good and integrates cleanly with Writer for academic and technical documents [README][1].
• Familiar interface for Office refugees. The layout is close enough to older Microsoft Office (pre-Ribbon) that the learning curve is minimal for longtime Word/Excel users [1].

Cons

• LibreOffice is better on almost every dimension. Same heritage, more active development, more frequent releases, better modern OOXML compatibility, more extensions. The burden of proof is on OpenOffice to justify choosing it over LibreOffice — that case is hard to make [implied by all sources].
• Development pace is slow. One bugfix release per year at best. The gap from 4.1.15 (December 2023) to 4.1.16 (November 2025) was nearly two years [website]. Security patches take longer to ship.
• Dated interface. The UI aesthetic is early-2000s. No dark mode, no modern design language. Reviewers consistently flag this [3].
• No real-time collaboration. You cannot edit a document with a colleague simultaneously. No web editor, no sync protocol, nothing. This is a hard blocker for any team that works remotely [3].
• Microsoft Office compatibility has a ceiling. Older .doc and .xls files: fine. Modern .docx with advanced features, complex .xlsx with dynamic arrays, .pptx with animation logic: expect problems [3][1].
• VBA macros don’t transfer. If your workflow depends on Excel VBA macros, they don’t run in Calc. You’d need to rewrite them in OpenOffice Basic [3].
• Community support only. No vendor support contracts, no enterprise helpdesk. You’re on your own or in the forums [3].
• Long-term viability questions. The Apache Software Foundation briefly discussed retiring the project in 2016 due to insufficient maintainer bandwidth. It survived, but the question of whether it’s actively stewarded or passively maintained is legitimate [public record, not from provided sources — flagging as known context].

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Who should use this / who shouldn’t

Use OpenOffice if:

• You need a zero-cost, offline office suite for a single machine or a small number of machines, and you’ve specifically compared it with LibreOffice and have a reason to prefer it (e.g., a specific plugin only available for OpenOffice).
• You’re running legacy hardware or an unusual OS (FreeBSD, OS/2) where LibreOffice support is thinner.
• You work primarily with ODF or older .doc/.xls formats, not modern .docx/.xlsx with complex features.
• You have no need for real-time collaboration and manage your own file storage already.

Skip OpenOffice — use LibreOffice instead — if:

• You’re evaluating free office suites fresh. LibreOffice is the better-maintained fork and should be the first choice [3].
• You need modern OOXML compatibility.
• You want more active security updates.
• You’re on macOS, where the LibreOffice build is more polished.

Skip both — use Google Workspace or Microsoft 365 — if:

• Your team needs real-time co-editing on shared documents.
• You need mobile editing that syncs to desktops.
• Your workflow depends on Microsoft Office–specific features (VBA, Power Query, Teams integration).
• You have non-technical team members who will not tolerate a learning curve.

Skip both — use a self-hosted collaborative alternative — if:

• You want real-time collaboration without paying per-user SaaS fees.
• Look at ONLYOFFICE Docs (open-source, self-hostable, real-time collaboration) or Collabora Online (LibreOffice engine in a browser, self-hostable) [2].

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Alternatives worth considering

• LibreOffice — the obvious first alternative. Same codebase origin, more active development, better modern compatibility, same price ($0). This should be on every shortlist before OpenOffice [3].
• ONLYOFFICE Docs — open-source, self-hostable office suite with real-time collaboration. Better OOXML compatibility than OpenOffice; designed to work with platforms like Nextcloud [2].
• Collabora Online — LibreOffice engine packaged for browser-based editing. Self-hostable, integrates with Nextcloud and ownCloud.
• Google Workspace — the SaaS incumbent. $6/user/month starting, real-time collaboration, excellent mobile experience, closed source [2].
• Microsoft 365 — the other SaaS incumbent. Deepest Office compatibility (it is Office), starting at $6/user/month for business, $12.50 for desktop apps [2].
• CryptPad — zero-knowledge encrypted collaborative editing, self-hostable. Good for privacy-sensitive documents; less mature as a full office replacement [3].
• FreeOffice (SoftMaker) — free-as-in-beer proprietary alternative with arguably better Microsoft Office compatibility than OpenOffice, though closed source [2].

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Bottom line

Apache OpenOffice is the grandfather of free office suites — 398 million downloads, more than two decades of history, a legitimate Apache-2.0 license, and a feature set that covers the basics well. If the only thing you need is a word processor, a spreadsheet editor, and a presentation tool that costs nothing and runs offline, it delivers.

The honest caveat: for most people reading this in 2026, LibreOffice is the right recommendation first. It shares OpenOffice’s heritage, has seen more development since the 2010 fork, and doesn’t require you to justify the choice. OpenOffice makes sense in specific scenarios — legacy infrastructure, infrequently updated deployments, environments where the slower release cadence is a stability feature rather than a liability.

What OpenOffice does not solve is real-time collaboration or modern cloud document workflows. For founders escaping Google Workspace or Microsoft 365 bills specifically because of per-seat pricing, the honest path forward is either ONLYOFFICE Docs (self-hosted, real-time collaboration, open source) or Collabora Online — not a desktop-only suite from 2004.

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Sources

1. OSnews — “Openoffice.org 1.0 Review – Review your Options”. https://www.osnews.com/story/1221/openofficeorg-10-review-review-your-options/
2. SourceForge — “FreeOffice Reviews and Alternatives in 2026”. https://sourceforge.net/software/product/FreeOffice/
3. AppMus — “Apache OpenOffice Writer vs Cryptpad Comparison (2026)”. https://appmus.com/vs/open-office---writer-vs-cryptpad
4. Flameeyes’s Weblog — “OpenOffice” (tag archive, 2008–2010). https://flameeyes.blog/tag/openoffice/

Primary sources:

• Apache OpenOffice official website: https://www.openoffice.org
• GitHub repository (Apache mirror): https://github.com/apache/openoffice
• Project source and build documentation: https://openoffice.apache.org/source.html