Best Outline Alternatives in 2026
Updated
20 tools from knowledge base software ranked against Outline on the same published basis.
- 1Outline vs Nuclino
- 2Outline vs ProProfs Knowledge Base
- 3Outline vs Confluence
- 4Outline vs GitBook
- 5Outline vs BlueSpice
- 6Outline vs Slite
- 7Outline vs Papyrs
- 8Outline vs Docmost
- 9Outline vs Wiki.js
- 10Outline vs Zoho Learn
- 11Outline vs Slab
- 12Outline vs Mintlify
- 13Outline vs Elium
- 15Outline vs Hudu
- 16Outline vs Helpable
- 17Outline vs BookStack
- 18Outline vs Docsie
- 19Outline vs Paligo
- 20Outline vs Intercom
- 21Outline vs MediaWiki
Outline alternatives compared
| # | Tool | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Nuclino | 9.4 | Free plan | Free | Android, API, iOS, Linux, Mac, Web, Windows |
| 2 | ProProfs Knowledge Base | 9.4 | Free plan | $0.99/mo | Android, API, Browser, iOS, Web, Windows |
| 3 | Confluence | 9.2 | Free plan | $5.42/mo | Android, iOS, self-hosted, Web |
| 4 | GitBook | 8.7 | Free plan | $65/mo | API, Web |
| 5 | BlueSpice | 8.6 | Free plan | €4.50/mo | self-hosted |
| 6 | Slite | 8.6 | No | $10/mo | Android, API, Browser, iOS, Mac, Web, Windows |
| 7 | Papyrs | 8.6 | Free plan | — | Android, API, iOS, Linux, Mac, Web, Windows |
| 8 | Docmost | 8.5 | Free plan | — | API, self-hosted, Web |
| 9 | Wiki.js | 8.5 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 10 | Zoho Learn | 8.3 | Free plan | Free | Web, iOS, Android |
| 11 | Slab | 8.3 | Free plan | $6.67/mo | Web, Windows, Mac |
| 12 | Mintlify | 8.3 | Free plan | $450/mo | Linux, Mac, Web, Windows |
| 13 | Elium | 8.2 | No | €15/mo | Android, API, Browser, iOS, self-hosted, Web |
| 15 | Hudu | 8.2 | No | $27/mo | Android, API, Browser, iOS, self-hosted, Web |
| 16 | Helpable | 8.2 | Free plan | $25/mo | API, Web |
| 17 | BookStack | 8.1 | Free plan | £37.50/mo | API, Linux, self-hosted, Web |
| 18 | Docsie | 8.1 | Free plan | $170/mo | API, self-hosted, Web |
| 19 | Paligo | 8.1 | No | $416.67/mo | API, Web |
| 20 | Intercom | 8.0 | No | $19/mo | Android, iOS, Web |
| 21 | MediaWiki | 7.9 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
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Questions about Outline alternatives
What is the best alternative to Outline?
Nuclino, number 1 in knowledge base software with a score of 9.4 out of 10. The others here: ProProfs Knowledge Base, Confluence, GitBook and 16 more.
What is the best free alternative to Outline?
Nuclino is the best-ranked alternative with a free plan. 15 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.