Outline vs Slite
They differ on 7 of the 12 things buyers in this category actually ask about. Here is where, and what each one asks you to give up.
Outline
$10/seatFast open-source wiki you can self-host, with excellent search.
Strongest argument
Self-hostable, so data residency and retention are yours to set
Biggest objection
No structured database layer if you need one
Self-hosting means you own upgrades, backups and uptime.
Slite
$8/seatA deliberately small wiki with AI search, built to keep knowledge current.
Strongest argument
Ask-style AI search that answers from your own documentation
Biggest objection
Not a fit if you want docs and structured data in one tool
Intentionally limited — no database layer, no app-building.
The differences that matter
Where they actually diverge
Only the rows where the two disagree. Everything they both do is listed below.
Cost
What each costs at 50 people
List price only. It ignores add-ons, seat minimums and the cost of the move itself — all of which routinely dwarf the difference below.
Prices are unverified estimates — useful for comparing orders of magnitude, not for budgeting. Confirm the current figure with the vendor before you commit to anything.
Common ground
What both of them do
These will not help you choose — which is exactly why they are worth knowing about before a vendor pitches one as a differentiator.
- Database-style tablesNo
- Version historyYes
- SAML single sign-onYes
- EU data residencyYes
- Native mobile appsNo
In full
Every pro and con, both sides
Outline
- Self-hostable, so data residency and retention are yours to set
- Search is fast and accurate even on large knowledge bases
- Clean markdown editing that writers do not resent
- No structured database layer if you need one
- Smaller integration ecosystem
- Cloud plan is priced similarly to bigger-name competitors
Slite
- Ask-style AI search that answers from your own documentation
- Flags stale pages so the wiki does not rot silently
- Small enough surface that adoption is quick
- Not a fit if you want docs and structured data in one tool
- Fewer integrations than the larger platforms
- Smaller vendor, which matters to some procurement teams
Questions
Outline vs Slite, answered
Outline or Slite — which is better?
Neither, in the abstract. Outline suits you if self-hostable, so data residency and retention are yours to set matters most; Slite if ask-style AI search that answers from your own documentation does. The honest trade-offs are: Outline — Self-hosting means you own upgrades, backups and uptime. Slite — Intentionally limited — no database layer, no app-building.
Is Outline cheaper than Slite?
Slite is cheaper at 50 people — $10/seat/mo against $8/seat/mo, roughly $4,800 against $6,000 a year. That gap of about $1,200 is rarely the whole story though — add-ons, seat minimums and the cost of migrating routinely outweigh it.
Can we migrate from Outline to Slite?
Usually yes, and the difficulty depends on history, integrations and headcount far more than on the two products. Data export quality is the thing to check first: ask both vendors what you can take with you before you commit to either. Our questionnaire produces a scoped estimate for the move.
What else should we consider besides Outline and Slite?
In documentation & wiki the other credible options are Coda, Confluence, Notion. Narrowing to two before you have written down your requirements is the most common way to end up with the wrong one.