MediaWiki vs Confluence

MediaWiki and Confluence are both widely used for organizing and sharing institutional knowledge, but they come from different starting points and were built to solve different problems. MediaWiki is open-source software, originally written to power Wikipedia, that an organization installs and runs on its own infrastructure (or has a hosting provider run on their behalf). Confluence is proprietary software from Atlassian, sold primarily as a per-user cloud subscription, built specifically for team collaboration and tightly integrated with the rest of the Atlassian product suite.

Neither platform is a strict upgrade over the other. The comparison that matters is not "which has more features" but "which set of trade-offs fits this organization" - open licensing and full content ownership versus a polished out-of-the-box editing experience and vendor support; unlimited customization versus a maintained product with a predictable update cycle; near-zero software cost versus per-seat pricing that scales with headcount. A detailed feature-by-feature comparison shows the two products have grown closer in places over the years even though they retain distinct character.

This guide compares licensing and cost, hosting models, the editing and permissions experience, extensibility, and the kinds of teams each platform tends to suit, in roughly the order these questions come up during an actual evaluation.

For organizations that have already chosen MediaWiki and want to get it running well, see "How to Install MediaWiki on Ubuntu Server" and "MediaWiki Maintenance Best Practices".

How the Two Platforms Are Built

MediaWiki is free software licensed under the GPL, written in PHP, and backed by a database such as MySQL, MariaDB, PostgreSQL, or SQLite. It is multilingual, with full support for over 65 languages and partial support for several hundred more, and it has full revision history built into every page by default. Because it is open source, an organization that installs MediaWiki owns the software outright and can modify it without restriction; support, if needed, comes from the community, third-party hosting providers, or specialist consultancies rather than from a single vendor.

Confluence is closed-source commercial software built by Atlassian, the company also behind Jira, Bitbucket, and Trello. It is offered primarily as Confluence Cloud, a fully managed SaaS product, with Confluence Data Center available as a self-managed option for organizations that need to keep the application on their own infrastructure. Page hierarchy is a first-class concept in Confluence - pages live inside "spaces" and nest under parent pages by default - whereas most wiki software, including MediaWiki, does not impose hierarchy and instead relies on categories and namespaces for organization.

Step 1: Compare Licensing and Cost

The cost structures of the two platforms are fundamentally different, not just different in magnitude.

MediaWiki has no license fee. The software itself is free to download, install, and modify under the GPL. The real costs are hosting infrastructure, the time required for setup and ongoing maintenance, and optionally a hosting provider or consultancy if the organization prefers not to self-manage the server. Self-hosted MediaWiki on a basic VPS commonly runs in the range of $5–$20 per month in infrastructure cost regardless of how many editors or readers the wiki has, since MediaWiki's pricing is not per-seat. Managed MediaWiki hosting providers that handle installation, backups, and updates typically charge a flat monthly fee starting at roughly $6–$10 per month rather than a per-user rate.

Confluence is priced per user, per month, on four tiers: Free, Standard, Premium, and Enterprise. The Free plan covers up to 10 users with limited storage and features. Standard and Premium are billed per user, with published per-seat rates that vary somewhat by source and by exact user count, generally falling in the range of roughly $5–$7 per user/month for Standard and roughly $10–$12 per user/month for Premium when billed annually. Enterprise pricing is not published and requires contacting Atlassian's sales team directly, with third-party estimates placing it considerably higher per seat. Because pricing is per seat and tiers are billed at whichever bracket is closest to actual headcount, exact figures should always be checked directly against Atlassian's pricing calculator rather than assumed from any third-party estimate, including this one.

Hidden costs exist on both sides, but they take different forms. For Confluence, the published per-seat price is rarely the full cost: advanced diagramming, reporting, and workflow apps from the Atlassian Marketplace are sold separately and can add a meaningful percentage on top of the base subscription, and some security features (such as SAML SSO via Atlassian Guard) are sold as an add-on outside the Enterprise tier. For MediaWiki, the equivalent hidden cost is staff time: someone needs to keep the server patched, run upgrades, and configure extensions, which either requires in-house technical capacity or a paid hosting/consulting relationship.

Step 2: Compare Hosting and Self-Management

MediaWiki is self-hosted by default. Running it requires a web server (commonly Apache or Nginx), PHP 8.2 or later, and a supported database such as MySQL, MariaDB, PostgreSQL, or SQLite. A minimum of 512 MB of RAM is generally sufficient to run MediaWiki, with 1 GB or more recommended for reliable performance. Managed MediaWiki hosting is widely available from general-purpose hosts and specialist providers alike, removing most of the server-administration burden in exchange for a flat fee, but the organization is still responsible for application-level configuration, extensions, and upgrades unless the host explicitly covers that as well.

Confluence Cloud is fully managed by Atlassian. Updates, infrastructure, and uptime are Atlassian's responsibility, not the customer's; this is the primary appeal for organizations that do not want to run their own servers. Confluence Data Center, the self-managed alternative, gives an organization control over its own infrastructure and compliance posture, but at a cost: the license fee is in addition to infrastructure and ongoing maintenance, and it is generally positioned for organizations large enough to absorb that cost, since pricing in practice puts it out of reach for smaller customers.

Step 3: Compare the Editing and Collaboration Experience

Confluence's editor is generally considered more approachable for non-technical users. It uses a WYSIWYG editor by default, with shortcuts for speeding up common interactions across the editor, page tree, and inbox. Comments and @mentions are built into the page-editing workflow, which lowers the bar for someone who wants to suggest a change without committing to a full edit.

MediaWiki's traditional editing model is wikitext markup, with VisualEditor available as a modern WYSIWYG alternative. Wikitext has a learning curve that Confluence's editor does not, but it is also more precise and predictable for complex page structures, templates, and structured data - the kind of editing Wikipedia itself depends on at scale. Every MediaWiki page carries full revision history by default, letting any editor view, compare, or revert past versions.

Familiarity is itself a factor worth weighing. Because MediaWiki powers Wikipedia, many people already have some intuition for how a MediaWiki-based site works even before learning the editing syntax, which can lower the adoption barrier for a public-facing or community wiki specifically.

Step 4: Compare Permissions, Security, and Compliance

Confluence ships with a broader out-of-the-box security and compliance feature set than MediaWiki does. Atlassian advertises compliance with standards including SOC 2, SOC 3, ISO 27001, ISO 27018, and PCI DSS, along with data encryption and granular page-level and space-level permissions. Audit logs, IP allowlisting, and data residency controls are generally reserved for the Premium and Enterprise tiers rather than included at the base price.

MediaWiki's permission model is simpler and is configured directly in LocalSettings.php through user groups and the $wgGroupPermissions array, covering read, edit, upload, and other rights at the namespace or wiki-wide level. This is highly flexible for an administrator comfortable editing configuration files, but it lacks the polished, point-and-click compliance tooling - audit dashboards, certified compliance attestations, centralized identity management - that Confluence offers as a packaged feature. Organizations with specific regulatory requirements should treat this as a genuine gap to plan around, not something to be assumed away by general-purpose server hardening.

Step 5: Compare Extensibility and Integrations

MediaWiki's extensibility comes from its open extension ecosystem. Hundreds of extensions exist, covering everything from semantic data and structured queries to alternate editors and authentication backends, and because the core software is open, an organization with PHP expertise can build something highly specific to its own needs. This flexibility is also why MediaWiki appears across such a wide range of use cases - from small personal wikis through corporate knowledge bases to large public reference sites - without changing platforms. The trade-off is that meaningful customization generally requires development time, not just configuration.

Confluence's extensibility comes from the Atlassian Marketplace and its native Atlassian integrations. It integrates tightly with Jira for issue tracking, and connects to tools such as Bitbucket, GitHub, GitLab, Google Drive, and diagramming tools like Gliffy out of the box or via marketplace apps. For a team already standardized on Atlassian tooling, this integration depth is one of Confluence's strongest practical advantages - work tracked in Jira and documentation in Confluence stay linked with comparatively little setup. For a team with no other Atlassian products, that specific advantage mostly disappears.

Configuration and Decision Reference

MediaWiki vs Confluence at a Glance

Factor	MediaWiki	Confluence
License / cost model	Free, open source (GPL); pay only for hosting and optional support	Proprietary; per-user/month subscription (Free, Standard, Premium, Enterprise tiers)
Hosting	Self-hosted by default; managed hosting available from third parties	Confluence Cloud is fully managed by Atlassian; Confluence Data Center is self-managed
Typical cost driver	Server/infrastructure cost plus admin time, largely flat regardless of user count	Scales directly with number of users/seats
Default editing experience	Wikitext markup, with VisualEditor available as a WYSIWYG option	WYSIWYG editor by default, generally considered easier for non-technical users
Page organization	Namespaces and categories; no enforced hierarchy	Spaces with built-in page hierarchy
Revision history	Full page history by default on every page	Page history and version comparison included
Permissions	Configured via $wgGroupPermissions in LocalSettings.php; namespace/wiki-level	Page- and space-level permissions; audit logs and SSO typically gated to higher tiers
Compliance certifications	Not inherent to the software; depends on hosting/infrastructure choices	SOC 2, SOC 3, ISO 27001, ISO 27018, PCI DSS advertised by Atlassian
Extensibility model	Open extension ecosystem; requires development effort for deep customization	Atlassian Marketplace apps; tight native integration with Jira and other Atlassian tools
Best-known deployment	Wikipedia and the Wikimedia Foundation's other projects	Used by an estimated 75,000+ companies globally

Best Practices for Choosing Between Them

Map the decision to actual constraints rather than feature checklists: a small team that already pays for Jira will get integration value from Confluence that a non-Atlassian shop simply won't see, and that should weigh more heavily than a side-by-side feature count. Calculate total cost of ownership for both options across a realistic 3-year horizon, including infrastructure and admin time for MediaWiki and marketplace add-ons plus likely tier growth for Confluence, rather than comparing only the advertised starting price. If data residency, audit logging, or a specific compliance certification is a hard requirement, verify it explicitly against Confluence's current tier breakdown or against MediaWiki's hosting environment, rather than assuming either platform covers it by default. For public-facing or community-editable content, take MediaWiki's open licensing and Wikipedia-derived editing conventions seriously as an advantage, since the familiarity reduces onboarding friction for outside contributors in a way Confluence cannot replicate. For an internal knowledge base where the priority is fast onboarding for non-technical staff with minimal setup, weight the WYSIWYG editing experience accordingly. Pilot with real content from the actual organization, not sample data, since editing-experience differences are most apparent when people are writing about things they actually know.

Common Mistakes

Comparing only the advertised list price of Confluence's Free or Standard tier against MediaWiki's "free" software cost, without accounting for either Confluence's per-seat scaling at higher headcounts or MediaWiki's ongoing hosting and maintenance time, produces a misleading total-cost picture either way. Assuming MediaWiki is "the Wikipedia software" and therefore inherently public - it is equally capable of running a fully private, login-required internal wiki, and this is a common point of confusion during evaluation. Assuming Confluence Data Center is a like-for-like substitute for self-hosted MediaWiki on cost grounds; Data Center licensing plus infrastructure is typically priced for considerably larger organizations than a small self-hosted MediaWiki deployment. Underestimating the migration effort in either direction - neither platform exports cleanly into the other's native format, and a Confluence-to-MediaWiki migration in particular is usually a manual content-conversion project rather than an automated one. And choosing a platform primarily by aggregate feature count rather than by which specific features the organization will actually use day to day, which tends to overweight breadth and underweight fit.

Frequently Asked Questions

Is MediaWiki really free, or are there hidden costs?

The software itself has no license fee under the GPL. The real costs are infrastructure (a basic VPS commonly runs $5–$20/month) and the staff time needed to install, secure, and maintain the installation, or a managed hosting fee if that work is outsourced. There is no per-user charge regardless of how many people read or edit the wiki.

How much does Confluence cost for a small team?

Confluence's Free plan covers up to 10 users. Beyond that, the Standard plan is billed per user per month, with published rates generally in the single digits of dollars per user when billed annually, though exact current pricing should be checked against Atlassian's own pricing calculator since rates vary by user count and have shifted over time.

Can MediaWiki integrate with tools like Jira?

Not natively in the way Confluence does. Some community extensions exist for specific integrations, but MediaWiki was not built around the Atlassian ecosystem, so any Jira-MediaWiki integration requires deliberate extension work rather than coming built in.

Which platform is easier for non-technical staff to use?

Confluence's default WYSIWYG editor is generally considered more approachable for people without prior wiki experience. MediaWiki's VisualEditor narrows this gap considerably compared to raw wikitext editing, but wikitext remains the more powerful option for complex page structures and is still commonly used by experienced editors.

Can I migrate from Confluence to MediaWiki, or the other way around?

Migration is possible in both directions but is rarely a clean, fully automated process, since neither platform's native export format maps directly onto the other's page model, permissions system, or macro/template conventions. Organizations that have made this move typically describe it as a manual content-conversion project handled by a small team over several weeks, rather than a single import script.

Does MediaWiki have an equivalent to Confluence Data Center for self-managed enterprise use?

Third-party MediaWiki distributions exist that package the open-source core with additional enterprise features - extended permissions, workflow tools, and professional support - aimed specifically at organizations that want MediaWiki's openness with more enterprise-grade tooling layered on top. These are generally evaluated separately from vanilla MediaWiki when the comparison is specifically against Confluence Data Center.

Conclusion

MediaWiki and Confluence solve overlapping problems from different directions. MediaWiki offers open licensing, full control over hosting and customization, and a model proven at the scale of Wikipedia itself, at the cost of needing someone to actually run and maintain the server. Confluence offers a polished, fully managed editing and collaboration experience with strong out-of-the-box compliance credentials and deep ties to the rest of the Atlassian ecosystem, at the cost of a subscription that scales with every additional seat.

Neither comparison point is universally "better." The right choice follows from concrete constraints: existing tooling, in-house technical capacity, budget shape (fixed infrastructure cost versus variable per-seat cost), and whether compliance certifications or public-editability matter more for the specific use case. Evaluating both platforms against a real, current pricing page and a real pilot of actual content - rather than against a generic feature checklist - is the most reliable way to make this decision well.

For help evaluating, installing, or migrating to a self-hosted MediaWiki instance, see SolidWiki's MediaWiki Development Services page.

See Also

• MediaWiki Maintenance Best Practices
• MediaWiki Security Hardening Guide
• How to Install MediaWiki on Ubuntu Server
• MediaWiki File Upload Management Guide
• MediaWiki Namespaces Explained

External Links

• Atlassian: Confluence Pricing
• MediaWiki Manual: Installation Requirements
• MediaWiki Manual: Security
• Atlassian: Confluence Product Page
• MediaWiki.org: About MediaWiki