MediaWiki is the stronger choice when the deciding factor is day-to-day wiki & knowledge base workflow fit, while Outline has the clearer case when pricing shape, deployment control, or rollout risk matters more. For knowledge operations teams, the practical decision is not feature count; it is which product better supports teams trying to keep policies, product docs, and internal knowledge searchable and trusted without forcing a costly migration six months later.
Quick comparison
| Feature | MediaWiki | Outline |
|---|---|---|
| Starting price | Free plan | Free plan |
| Free plan | Yes | Yes |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
| G2 rating | Not listed | Not listed |
| Best for | teams that want a mature, full-featured option | teams that want open-source, self-hosted control |
| Starting price | Free plan available; paid tiers depend on usage and plan limits. | Free plan available; paid tiers depend on usage and plan limits. |
| Free plan | Yes | Yes |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
| Deployment model | self-hosted | self-hosted |
| Best for | teams that want a mature, full-featured option | teams that want open-source, self-hosted control |
| Primary risk | Requires internal ownership for hosting, upgrades, security patches, or support expectations. | Requires internal ownership for hosting, upgrades, security patches, or support expectations. |
Knowledge structure and navigation
Winner: MediaWiki. For knowledge structure and navigation, MediaWiki is the safer default because its catalog profile fits the way knowledge operations teams usually evaluate this decision: workflow fit, rollout cost, ownership model, and how quickly the team can prove value with real data. MediaWiki is positioned as the wiki software behind wikipedia, while Outline is positioned as open-source team knowledge base; that difference matters when the comparison moves from a feature checklist into daily operation. If your team is using this category for teams trying to keep policies, product docs, and internal knowledge searchable and trusted, test the winner against one production workflow, one admin workflow, and one reporting workflow before committing. Outline can still be the better pick when its ecosystem, existing contracts, or migration path reduces change management, but it asks for a more deliberate rollout plan.
Editor quality and content governance
Winner: Outline. For editor quality and content governance, Outline is the safer default because its catalog profile fits the way knowledge operations teams usually evaluate this decision: workflow fit, rollout cost, ownership model, and how quickly the team can prove value with real data. MediaWiki is positioned as the wiki software behind wikipedia, while Outline is positioned as open-source team knowledge base; that difference matters when the comparison moves from a feature checklist into daily operation. If your team is using this category for teams trying to keep policies, product docs, and internal knowledge searchable and trusted, test the winner against one production workflow, one admin workflow, and one reporting workflow before committing. MediaWiki can still be the better pick when its ecosystem, existing contracts, or migration path reduces change management, but it asks for a more deliberate rollout plan. Adoption also depends on who touches the system every week. A tool that is powerful for admins but slow for contributors creates shadow spreadsheets, skipped updates, and cleanup meetings. In this pair, Outline has the clearer adoption story for teams that want less training friction.
Search, verification, and stale content
Winner: MediaWiki. For search, verification, and stale content, MediaWiki is the safer default because its catalog profile fits the way knowledge operations teams usually evaluate this decision: workflow fit, rollout cost, ownership model, and how quickly the team can prove value with real data. MediaWiki is positioned as the wiki software behind wikipedia, while Outline is positioned as open-source team knowledge base; that difference matters when the comparison moves from a feature checklist into daily operation. If your team is using this category for teams trying to keep policies, product docs, and internal knowledge searchable and trusted, test the winner against one production workflow, one admin workflow, and one reporting workflow before committing. Outline can still be the better pick when its ecosystem, existing contracts, or migration path reduces change management, but it asks for a more deliberate rollout plan. Governance is where hidden costs show up. Compare permission boundaries, audit needs, export options, SSO expectations, and whether the deployment model matches your security review.
Permissions and external sharing
Winner: MediaWiki. For permissions and external sharing, MediaWiki is the safer default because its catalog profile fits the way knowledge operations teams usually evaluate this decision: workflow fit, rollout cost, ownership model, and how quickly the team can prove value with real data. MediaWiki is positioned as the wiki software behind wikipedia, while Outline is positioned as open-source team knowledge base; that difference matters when the comparison moves from a feature checklist into daily operation. If your team is using this category for teams trying to keep policies, product docs, and internal knowledge searchable and trusted, test the winner against one production workflow, one admin workflow, and one reporting workflow before committing. Outline can still be the better pick when its ecosystem, existing contracts, or migration path reduces change management, but it asks for a more deliberate rollout plan.
Migration and export control
Winner: MediaWiki. For migration and export control, MediaWiki is the safer default because its catalog profile fits the way knowledge operations teams usually evaluate this decision: workflow fit, rollout cost, ownership model, and how quickly the team can prove value with real data. MediaWiki is positioned as the wiki software behind wikipedia, while Outline is positioned as open-source team knowledge base; that difference matters when the comparison moves from a feature checklist into daily operation. If your team is using this category for teams trying to keep policies, product docs, and internal knowledge searchable and trusted, test the winner against one production workflow, one admin workflow, and one reporting workflow before committing. Outline can still be the better pick when its ecosystem, existing contracts, or migration path reduces change management, but it asks for a more deliberate rollout plan.
Cost for growing knowledge bases
Winner: Outline. For cost for growing knowledge bases, Outline is the safer default because its catalog profile fits the way knowledge operations teams usually evaluate this decision: workflow fit, rollout cost, ownership model, and how quickly the team can prove value with real data. MediaWiki is positioned as the wiki software behind wikipedia, while Outline is positioned as open-source team knowledge base; that difference matters when the comparison moves from a feature checklist into daily operation. If your team is using this category for teams trying to keep policies, product docs, and internal knowledge searchable and trusted, test the winner against one production workflow, one admin workflow, and one reporting workflow before committing. MediaWiki can still be the better pick when its ecosystem, existing contracts, or migration path reduces change management, but it asks for a more deliberate rollout plan. Cost should be modeled over twelve months, not from the first plan label. Include seats, usage, storage, integrations, onboarding, and the time spent recreating automations.
Pricing deep-dive
MediaWiki
- Free plan: available for evaluation or limited production use in wiki & knowledge base.
- Entry paid tier: starts from free, with paid usage or feature upgrades varying by plan.
- Pricing model: open-source; license is open-source; deployment type is self-hosted.
- Open-source economics: subscription cost may be replaced by hosting, upgrades, backups, and internal maintenance.
Outline
- Free plan: available for evaluation or limited production use in wiki & knowledge base.
- Entry paid tier: starts from free, with paid usage or feature upgrades varying by plan.
- Pricing model: open-source; license is open-source; deployment type is self-hosted.
- Open-source economics: subscription cost may be replaced by hosting, upgrades, backups, and internal maintenance.
Pricing verdict: Neither product has a clean universal pricing win from catalog data alone. MediaWiki is cataloged as: Free plan: available for evaluation or limited production use in wiki & knowledge base. Entry paid tier: starts from free, with paid usage or feature upgrades varying by plan. Pricing model: open-source; license is open-source; deployment type is self-hosted. Open-source economics: subscription cost may be replaced by hosting, upgrades, backups, and internal maintenance. Outline is cataloged as: Free plan: available for evaluation or limited production use in wiki & knowledge base. Entry paid tier: starts from free, with paid usage or feature upgrades varying by plan. Pricing model: open-source; license is open-source; deployment type is self-hosted. Open-source economics: subscription cost may be replaced by hosting, upgrades, backups, and internal maintenance. Build the comparison around the plan that supports your real production workflow, not the cheapest plan each vendor advertises.
How to migrate from MediaWiki to Outline
What real users say
MediaWiki: MediaWiki users usually praise the parts that match its positioning as the wiki software behind wikipedia. The recurring criticism is predictable: once teams push it beyond that core use case, they run into plan limits, integration gaps, admin overhead, or migration work that was not obvious during evaluation.
Outline: Outline users usually praise the parts that match its positioning as open-source team knowledge base. Complaints tend to cluster around pricing clarity, onboarding effort, reporting flexibility, or the amount of manual process needed to keep the system accurate over time.
Sources: Pattern synthesized from catalog data, vendor positioning, public pricing availability, and common review themes; verify current review excerpts before quoting users directly.
Final verdict
Choose MediaWiki if...
- Choose MediaWiki if your team needs the wiki software behind wikipedia and that positioning matches the work people will do every week.
- Choose MediaWiki if its pricing model, deployment type, and governance profile are easier to approve than forcing Outline into the same workflow.
- Choose MediaWiki if migration risk is lower because your current data model, integrations, or team habits already resemble its default setup.
Choose Outline if...
- Choose Outline if your team needs open-source team knowledge base and would otherwise customize MediaWiki heavily to fit.
- Choose Outline if it gives knowledge operations teams a clearer path for teams trying to keep policies, product docs, and internal knowledge searchable and trusted without adding admin work after launch.
- Choose Outline if its free plan, paid entry point, open-source status, or managed service model better fits your procurement constraints.
Consider neither if: Consider neither if you need a fundamentally different wiki & knowledge base model: open-source control when both are managed, managed support when both require ownership, or a narrower specialist tool for one workflow. In that case, review the broader category page and adjacent comparisons before committing.