Inferse
For vendors
AdvertiseTop spots, featured rows, home sponsor Get listedAdd a product we don't cover yet Claim a listingFree: verify the domain, then correct your page Vendor dashboardNumbers, orders and placements
List your platform
Vendor dashboard

Best Outline Alternatives in 2026

12 platforms from knowledge base software ranked against Outline on the same published basis.

  1. 1
    ProProfs Knowledge Base Free plan AndroidapiextensioniOSWeb $0.99/mo8.9
    Outline vs ProProfs Knowledge Base
  2. 2
    GitBook Free plan apiWeb $65/mo8.8
    Outline vs GitBook
  3. 3
    Nuclino Free plan AndroidapiiOSLinuxMac Free8.7
    Outline vs Nuclino
  4. 4
    Docmost Free plan apiself-hostedWeb 8.7
    Outline vs Docmost
  5. 5
    Wiki.js Free plan apiLinuxMacself-hostedWeb Free8.5
    Outline vs Wiki.js
  6. 6
    BookStack Free plan apiLinuxself-hostedWeb £37.50/mo8.4
    Outline vs BookStack
  7. 7
    Docsie Free plan apiself-hostedWeb $170/mo8.3
    Outline vs Docsie
  8. 8
    Paligo Free trial apiWeb $416.67/mo8.3
    Outline vs Paligo
  9. 9
    Helpable Free plan apiWeb $25/mo8.3
    Outline vs Helpable
  10. 10
    Elium Free trial AndroidapiextensioniOSself-hosted €15/mo8.0
    Outline vs Elium
  11. 11
    Slite Free trial AndroidapiextensioniOSMac $0.83/mo8.0
    Outline vs Slite
  12. 12
    Hudu Free trial AndroidapiextensioniOSself-hosted 8.0
    Outline vs Hudu
Make your platform an alternative to Outline

The sponsored alternative slot on this page is labelled and never changes the order above.

See the price