Wiki.js replaces 3 paid apps
One open-source tool, 3 subscriptions it can stand in for. Each pairing below is curated and verified by hand, with the honest catch spelled out. No votes, no pay-to-list.
LicenceAGPL-3.0
Plateformesyour server
InstallationDocker Compose with PostgreSQL, or a Node.js package plus a supported database
DonnéesPages, users, authentication data, and history in the configured database; optional storage modules can mirror content and assets to Git, local disk, or cloud storage
ConfigurationYou must provision a database and persistent volumes, then configure backups and a TLS reverse proxy for public use
facts verified 2026-08-11
A full team wiki with good search and enough knobs to justify Docker.
the catchIt is a flexible wiki, but Slite is easier to adopt and offers more polished hosted search, AI answers and knowledge-maintenance features with no server administration.
the verdict →all Slite alternatives →
A polished wiki, provided you are willing to become its part-time sysadmin.
the catchIt provides a capable wiki but not Nuclino's lightweight canvas, graph and board workflow, and it asks someone to administer a database-backed server.
the verdict →all Nuclino alternatives →
A modern wiki with enough knobs to remind you that you are now the administrator
the catchIt lacks Confluence's mature enterprise templates, macros, whiteboards, marketplace and Atlassian integrations, while shifting hosting and upgrades to you.
the verdict →all Confluence alternatives →last updated 2026-08-11 · up to $264/yr replaced · no votes, no pay-to-list
