OpenSwap
Specimen · outline/outline
SOURCE-AVAILABLE

Outline

Replaces Notion

License stamp
Source-available. Business Source License 1.1 (source-available, converts later) Read from the LICENSE file.
GitHub says
NOASSERTION (GitHub could not match a single license, which is why we read the file)
Self-host difficulty
●●○○○ 2 distinct container images in its compose file. Provisional, see how we score.
Activity
★ 41,217 stars · last push 2026-11-10 · checked 2026-11-10
Repository
github.com/outline/outline
GitHub description
"The fastest knowledge base for growing teams. Beautiful, realtime collaborative, feature packed, and markdown compatible."

Self-host vs Notion

Example values: replace every number with your own. SaaS price prefilled from Notion pricing, checked 2026-11-10; the other numbers are examples.

Self-hosting saves about $1,260 a year for 20 seats: SaaS $2,400 vs self-host $1,140 (server $144, backups $36, admin time $960). Break-even at about 10 seats at these numbers.

Admin hours start from our guess for difficulty 2 and are yours to edit. Notion price: $10 per user per month (Plus plan, billed annually). Plus $10/user/mo billed annually ($12 monthly); Business $20/user/mo billed annually ($24 monthly). Corroborated from third-party reads of the vendor page; the vendor page did not render prices as text. Source: vendor pricing page, checked 2026-11-10.

Other Notion alternatives

Pl. 01
OPEN CORE

AFFiNE

replaces Notion

Core under MIT (Community Edition parts under MPL-2.0 per the EE file); server/Enterprise parts under the AFFiNE EE License, production use needs a paid Enterprise subscription

★ 74kunratedpush 2026-11-10

Pl. 02
OPEN SOURCE

AppFlowy

replaces Notion

AGPL-3.0 (OSI-approved, whole repository)

★ 79kunratedpush 2026-11-02