A self-hosted wiki and a self-hosted office suite are compared because both hold writing on your servers. They hold different shapes of writing.
A wiki is pages, a tree and search. Outline and Docmost are the current open, self-hostable examples people actually shortlist; confirm current features with those projects rather than with a snapshot in this article. A suite is document, spreadsheet and presentation objects with real-time editors. Engineering knowledge bases are the first shape. Contracts, board decks and shared models are the second. Most organisations need both. That is not a failed standardisation.
This is not a recap of ShimoDocs versus Confluence or ShimoDocs versus Slab. Those pages are about a hosted wiki and a hosted knowledge base. This page is the self-hosted shape question, with Outline and Docmost as the wiki column.
Two primitives
A wiki page is prose in a hierarchy. Nesting is the navigation. Search is the retrieval. Publishing — a page that is current, not a draft folder — is the habit the tool encourages. Attachments exist; they are not the product.
A suite file is a type: document, sheet, slides, form, table. The editor is specialised. Version history is of that file. Sharing is of that file. External exchange means OOXML and PDF, not “export this space to HTML”.
| Work | Wiki (Outline, Docmost, similar) | Office suite |
|---|---|---|
| Internal handbook, runbook, API notes | Native | Possible, usually worse navigation |
| Onboarding and “how we do things” | Native | Possible, tends to rot in folders |
| Engineering design that should stay a page | Native | A document works; the tree is missed |
| Budget model, headcount sheet | Attachment, if at all | Native spreadsheet |
| Board or customer deck | Attachment | Native presentation |
| Contract or proposal in review | Awkward as a page | Native document, comments on the text |
| Intake form and its responses | Usually another tool | Native form / table |
| File exchange with clients | Weak | Import and export of Office formats |
The table is work, not ticks. A wiki that “has attachments” has not become a spreadsheet tool. A suite that “has folders” has not become a wiki.
What Outline and Docmost are good at
Both are self-hosted wikis. They differ in editing and permissions; pick between them on a trial, not on a blog paragraph. Confirm collections, public sharing, SSO and search with each project.
A page tree people can learn. Handbooks and engineering docs are hierarchical. That is a wiki strength Confluence also has, which is why the Confluence alternative page lists Docmost and Outline as the closest self-hosted wiki shape.
Publishing discipline. A page is meant to be current. File workspaces accumulate drafts unless you add conventions. If the problem is “nobody knows which version is the policy”, a wiki addresses the cause.
Operational thinness. A wiki is a smaller system than a suite. If the team is small and the content is lookup, do not buy a spreadsheet engine to host a handbook.
Not spreadsheets, not decks, not external OOXML. That is the honest limit. If those appear in the trial as “we will attach them”, you already know you need a second system.
What a suite is good at, on the same axis
Working files. Several people in a document this afternoon, a model that must compute, a deck that will be presented, a form that will collect answers.
A boundary for content that leaves the organisation. Client drafts, counsel review, a spreadsheet that is the submission. Wikis can be shared; they are still page tools. Confirm Outline or Docmost sharing if that is truly the need — and still test whether the artefact should have been a file.
One deployment for docs, sheets, slides, forms and tables, if that set is the work. A wiki plus Sheets plus Slides plus a form tool is four places to lose the current version.
It is a worse handbook. Live with that, or run a wiki beside it.
The split that usually works
| Content class | System | Why |
|---|---|---|
| Engineering wiki, runbooks, API reference | Outline or Docmost (or Confluence, if you are staying) | Tree and search; issue-tracker links if you still have them |
| Company handbook and policy | Wiki, with a named owner per page | Publishing beat folders |
| Product specs that are really pages | Wiki | Nesting and backlinks |
| Product specs that are really working docs | Suite | Review, comments, export |
| Financial models, capacity sheets | Suite | Spreadsheet is the artefact |
| Customer and legal files | Suite | File object, access, retention |
| PDFs and dumps | File platform, if you have one | Neither wiki nor suite is a cabinet |
Write the table down. The failure mode is not “we chose both”. It is “both have last quarter’s launch doc”.
If you are leaving Confluence, the wiki column might stay a wiki: Outline or Docmost, not a suite. The suite column is the work Confluence was a poor place for anyway. Migrating without a Confluence connector is the honest import story for the suite half; a wiki-to-wiki move is a different importer conversation with those projects, not with us.
How to decide in a week
- List twenty artefacts people opened last week. Put each in the wiki column or the suite column. If nineteen are pages, install a wiki. If nineteen are files, install a suite. If it is ten and ten, plan both.
- Open the spreadsheet and the deck in the wiki. If the answer is “attach it”, you have the suite requirement in one afternoon.
- Search the handbook in a file tree. If the answer is “I asked a colleague”, you have the wiki requirement.
- Do not standardise on one to win an architecture argument. Standardise on a rule for which class lives where.
Confirm Outline and Docmost capability, hosting options and licence with those projects before you freeze a wiki pick. Confirm a suite against your own files and your own review questions, not against a wiki feature grid.
Frequently asked questions
When is a self-hosted wiki the simpler answer?
When the content is internal handbooks, engineering reference, onboarding and policy pages that people look up rather than co-author as files. Outline and Docmost are built for that shape: a page tree, search, and a publishing habit. Confirm current hosting and permission models with those projects; they are the closer match than a document suite.
When is a self-hosted office suite the better fit than a wiki?
When the work is documents, spreadsheets and presentations that are edited together, reviewed, and often sent across an organisational boundary: contracts, models, decks, forms. A wiki will attach those files; it will not be the place they are written.
Do you have to choose one of a wiki and a suite?
Usually not. Plenty of organisations run both, and that is a legitimate design: the handbook in Outline or Docmost, the working files in the suite. Failure is leaving the boundary undefined so each system has a stale copy of the other.