Choose a knowledge base by who'll keep it current, not by the editor. Decide whether you need an internal wiki for staff, a customer-facing help centre or both, because most tools lean one way. Then move a real section of your own documentation into a trial and see whether your team searches it.
A knowledge base rarely fails because the editor's weak. It fails because nobody owns it, pages drift out of date and people stop trusting what they find. If you're leaving Slite, that's the problem to solve first. These nine alternatives are listed in no particular order and grouped by the kind of knowledge they're built to hold.
Who owns the updates?
Before you look at a single product, name the person or team who'll keep each section current. If the answer's everyone, it's usually nobody. Small teams often do best with one owner per area: product docs, sales answers, onboarding, policies.
Some tools on this list help with that job directly. Guru talks about governing company knowledge so AI answers can be trusted, and GitBook says it flags outdated content. Features like that help, but they won't replace a person who cares whether the page is right.
Once you know who owns what, the choice gets much easier, because you'll know how many people need to edit, how many only read, and whether anyone outside the business needs access.
Staff wiki, customer help centre or self-hosted?
Internal wikis for teams. Nuclino brings docs, knowledge and projects into one fast workspace. Papyrs builds an intranet and internal wiki together. Almanac pairs a wiki with workflow, aimed at pulling scattered docs into one place.
Knowledge built to be shared outward. Archbee builds knowledge portals people can search and contribute to. Docsie turns videos, files and websites into structured guides, courses and portals, which suits teams whose knowledge starts life as recordings.
Self-hosted and open source. BookStack is a simple open-source platform you host yourself. Outline can be cloud hosted or self-deployed, so it sits between the two camps.
If your staff and your customers need different answers, you may end up with two tools. That's fine, as long as each one has an owner and nobody has to guess which one holds the truth.
The nine, one line each
Listed A to Z.
Almanac
Best for: Teams pulling scattered docs into one source of truth, with workflow tools built into the wiki itself.
Archbee
Best for: Companies building knowledge portals that are easy to navigate, search, share and contribute to.
BookStack
Best for: Anyone who wants a simple wiki for organising information on their own server; the vendor describes it as fully free and open, MIT licensed.
Docsie
Best for: Training and documentation teams turning videos, files and websites into structured guides, courses and knowledge portals.
GitBook
Best for: Product teams connecting docs, product and users in one knowledge platform that, per the vendor, flags outdated content and knowledge gaps.
Guru
Best for: Larger companies that want structured, governed knowledge so the answers their AI tools give can be trusted.
Nuclino
Best for: Small teams wanting knowledge, docs and projects in one fast, simple shared workspace.
Outline
Best for: Teams documenting specs, support answers and onboarding, with a choice between cloud hosting and deploying it themselves.
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Papyrs
Best for: Companies wanting an intranet, internal wiki and knowledge site built together, without a separate tool for each.
Wiki and knowledge tools side by side
| Tool | Shape | Good for |
|---|---|---|
| Almanac | Wiki and workflow | Wiki plus workflow in one source of truth |
| Archbee | Knowledge portals | Searchable knowledge portals people can contribute to |
| BookStack | Self-hosted wiki | A simple wiki on your own server |
| Docsie | AI documentation and training | Turning recordings and files into guides and courses |
| GitBook | Docs and knowledge platform | Docs that flag outdated content |
| Guru | Governed company knowledge | Governed knowledge behind trusted AI answers |
| Nuclino | Team wiki and workspace | One fast workspace for docs and projects |
| Outline | Team wiki, self-hostable | Internal docs, cloud hosted or self-deployed |
| Papyrs | Intranet and team wiki | Intranet and team wiki together |
My advice before you migrate a single page
Don't move everything at once. Most knowledge bases carry years of half-finished pages, and moving the lot just gives you the same mess in a new font. Use the move as a clean-out: archive what nobody's opened in months, merge duplicates and give every surviving section an owner.
Then judge tools on search. Your team will forgive a plain editor. They won't forgive typing a question and getting the wrong page. If AI answers matter to you, check where those answers come from and how the tool shows its sources, so people can see which page an answer was built from.
If self-hosting appeals, be honest about who'll patch and back up the server. Open-source tools give you control, but someone has to look after them, and that someone needs time set aside for it.
For more options, see my guide to wiki software, the Confluence alternatives list and this roundup of knowledge management software.
Run the one-section trial
Pick one section your team uses every week, such as onboarding or sales answers. Move it into your top two tools unchanged, with its owner, and ask people to use only the new version for a fortnight.
Then ask three things. Did people find answers without asking a colleague? Did the owner keep it up to date without nagging? Did anyone outside the team who needed it get in easily? The tool with more yes answers is the one to keep, whatever its editor looks like.
Do you make a knowledge base or team wiki tool? Tool makers can ask to be considered for a featured place on this list.
Want your tool on this list? Featured spots and reviews here are paid partnerships. Here's how to partner with me.
Frequently asked questions
What's the difference between a wiki and a knowledge base?
A wiki is usually an open, editable space where a team writes and links pages together. A knowledge base is more structured, often built around answering questions, and is sometimes shared with customers as well as staff.
Should my internal wiki and help centre be the same tool?
It can work if the tool handles both public and private spaces well. Many teams keep them separate because staff and customers need different answers, written in different ways.
Is a self-hosted wiki a good idea for a small team?
Only if someone on the team is happy to look after the server, updates and backups. If not, a hosted tool is usually the safer choice.
How do I stop a knowledge base going out of date?
Give every section a named owner, set a regular review date and archive pages nobody uses. Tools that flag stale content help, but ownership is what keeps it current.
Do AI answers help in a knowledge base?
They can save time, but only if the pages behind them are accurate. Check that the tool shows which pages an answer came from, so people can check it.
How long should a knowledge base trial last?
A couple of weeks with one real section is usually enough to see whether people search it and whether the owner keeps it current.
