Yes, LibreOffice is both safe and genuinely free. It is developed by The Document Foundation, an independent non-profit organization, and licensed under open source terms that guarantee it will always be free to download, use and distribute. Its open source code is publicly auditable, security vulnerabilities are patched promptly, and the software does not collect personal data or display advertisements.
The Detailed Answer
The question of whether LibreOffice is safe and really free comes up frequently because people are accustomed to software that uses the word "free" as a marketing hook while hiding costs behind subscriptions, advertisements, data harvesting or feature limitations. LibreOffice does none of these things. Understanding why requires looking at its organizational structure, its licensing model and its security practices.
Is LibreOffice really free, or are there hidden costs?
LibreOffice is genuinely free with no hidden costs, no premium tiers, no subscription fees and no advertisements. Every feature is available to every user from the first download. The software is licensed under the Mozilla Public License 2.0 and the GNU Lesser General Public License (LGPL), both of which are established open source licenses that have been in use for decades. These licenses legally guarantee that anyone can use, copy, modify and redistribute LibreOffice without paying anyone anything. The Document Foundation, the non-profit that oversees LibreOffice, is funded by corporate donations (from companies like Google, Red Hat, Collabora and CIB), individual donations, and grants. It does not depend on user payments to survive. Companies that want professional support, enterprise features and certified builds can purchase Collabora Office or other commercial distributions built on the LibreOffice codebase, but these are optional services aimed at enterprise customers, not requirements for using the software.
Is it safe to download LibreOffice?
Downloading LibreOffice from the official website (libreoffice.org) is safe. The official installer is digitally signed, contains no adware, spyware, toolbars or bundled software, and has been verified by millions of users worldwide. The critical precaution is to download only from the official website. Third-party download sites sometimes wrap the LibreOffice installer in their own download managers that may bundle unwanted software. If you see advertisements for "accelerated downloads" or are asked to install additional software during the process, you are not on the official site. The official LibreOffice download is a direct file download with no intermediary.
Does LibreOffice collect my personal data?
No. LibreOffice is a desktop application that works entirely offline. It does not require an internet connection, does not phone home, does not collect telemetry, does not track your usage patterns and does not send any data to any server. Your documents exist only on your local storage unless you explicitly choose to save them to a cloud service. This is a fundamental design principle of the software, not just a policy that could change with a terms-of-service update. Because the source code is public, anyone can verify that the software contains no data collection mechanisms.
How does LibreOffice handle security vulnerabilities?
LibreOffice has a structured security response process managed by The Document Foundation. Security vulnerabilities are reported through a dedicated channel, triaged by the security team, and fixed in both the Fresh and Still release branches. Critical vulnerabilities typically receive patches within days to weeks, and security updates are distributed through the regular update mechanism. Because the source code is open, security researchers worldwide can audit the code independently, which increases the chances of finding and fixing vulnerabilities before they are exploited. The project maintains a public CVE (Common Vulnerabilities and Exposures) list so you can verify which issues have been addressed in each release.
Can LibreOffice get viruses or malware?
LibreOffice itself does not contain viruses or malware. However, like any office software, it can open documents that contain malicious macros. LibreOffice's default macro security setting is High, which means macros from untrusted sources do not execute automatically. This is the same type of protection that Microsoft Office provides through its macro security settings. You should never lower the macro security level or enable macros in documents from sources you do not trust, regardless of which office software you use. LibreOffice also supports document signing and encryption, which help verify document authenticity and protect sensitive content.
Is LibreOffice safe for business use?
Yes. LibreOffice is used by governments, military organizations, large corporations, schools and non-profits worldwide. The French Gendarmerie (with over 70,000 desktop installations), the Italian Ministry of Defense, the Spanish regional governments, the city of Munich and numerous other large organizations have deployed LibreOffice in production environments. For businesses that want vendor-backed support and certified builds, Collabora Office provides an enterprise distribution with long-term support, professional services, migration assistance and guaranteed security updates under a commercial agreement.
Why Open Source Makes LibreOffice More Trustworthy
Open source software has a fundamental transparency advantage over proprietary software when it comes to trust. With proprietary office software, you are trusting the vendor's claims about what the software does, because you cannot inspect the code yourself. With LibreOffice, the entire source code is available for inspection on the project's repository. Security researchers, government auditors, corporate IT teams and individual developers can all verify exactly what the software does, what data it accesses and what network connections it makes (the answer is none).
This transparency means that hidden data collection, undisclosed backdoors or secret functionality would be discovered quickly by the global community of developers who review and contribute to the code. The reputational damage of introducing such features would be catastrophic for the project, and the open source license ensures that the community could simply fork the code and remove any offending changes. This structural accountability makes LibreOffice inherently more trustworthy than software you cannot inspect.
The Document Foundation's governance structure adds another layer of assurance. As a registered non-profit organization based in Germany (subject to German and EU law), TDF operates transparently with published financial reports, elected board members and open community decision-making. There is no corporate owner who could decide to change the business model, add advertising, start collecting data or convert the software to a paid subscription. The non-profit structure exists specifically to prevent these scenarios.
Common Misconceptions
"Free software must be low quality." This assumption comes from the consumer software world where free versions are typically stripped-down teasers for paid products. LibreOffice is not a freemium product. It is a full-featured office suite developed by hundreds of professional developers and volunteers, backed by corporate sponsors who employ dedicated engineers to work on the codebase. Its feature set is comparable to Microsoft Office for the vast majority of use cases.
"If it is free, I am the product." This is true for ad-supported services like free email, social media and some mobile apps that monetize user data. It does not apply to LibreOffice, which has no advertising, no accounts, no cloud services to store your data and no data collection infrastructure. The Document Foundation's revenue comes from corporate sponsorships and voluntary donations, not from monetizing user behavior.
"Open source software is less secure because attackers can read the code." This is a common misunderstanding. Security through obscurity (hiding the code to prevent attackers from finding vulnerabilities) has been consistently demonstrated to be a weak security strategy. Attackers find vulnerabilities through reverse engineering, fuzzing and behavioral analysis regardless of whether the source code is available. Having the code open means that defenders, security researchers and the broader development community can also find and fix vulnerabilities, which in practice leads to faster security improvements. The Linux kernel, OpenSSL, Firefox and countless other security-critical open source projects demonstrate this principle at massive scale.
Key Takeaway
LibreOffice is genuinely free, genuinely safe and backed by a transparent non-profit organization. Its open source model provides stronger trust guarantees than proprietary software because anyone can verify exactly what the software does.