Best Internal Wiki · FREE
Best free Internal Wiki (2026)
4 internal wiki that offer a genuine free plan, ranked by entry price. Every figure links to the public page it was captured from — the vendor's own wherever the vendor publishes the number, otherwise the named public source — with the date we captured it.
Key takeaways
- Cheapest: Confluence at $0/mo.
- Qualifying: Confluence, Notion, Nuclino, Slab.
- Data current through: 2026-09-02. STALE marks a row with at least one plan we have not re-checked at its source in over 30 days. 1 of 4 rows below is marked.
Comparison
| # | Internal Wiki | Entry price | Free | HIPAA | SOC 2 | Best for | Source |
|---|---|---|---|---|---|---|---|
| 1 | Confluence | $0/mo | Yes | Yes | Yes | Software engineering teams using Jira | atlassian.com |
| 2 | Notion | $0/mo | Yes | Yes | Yes | All-in-one teams wanting wiki plus project management | notion.com |
| 3 | Nuclino STALE · 2026-06-18 | $0/mo | Yes | — | Yes | Small to mid-size teams wanting simplicity | nuclino.com |
| 4 | Slab | $0/mo | Yes | No | Yes | Engineering and product teams | slab.com |