Best Knowledge Management Software: 10 Tools for Teams

Every business has a few people who know how everything works, and they're usually the busiest. They answer the same questions every week, and when they're on holiday, work slows down. When they leave, some of that knowledge leaves with them for good.

Knowledge management software captures it before that happens. The ten tools below are listed alphabetically and in no particular order, from free open source wikis to AI knowledge platforms, and every description comes from the vendor's own site, read this week. For handovers in particular, my guide to building a knowledge transfer plan is worth a read.

Knowledge management tools compared

In the free plan column, Yes means the tool's own site names a free plan, a free edition, a free account or an open source version. Trial only means a time-limited trial. Not stated means the pages I read named neither, even where there's a button inviting you to try it or book a demo.

Tool	Type	Good for	Free plan
Bloomfire	Knowledge platform for enterprise AI	Large firms feeding trusted knowledge to AI	Not stated
BookStack	Free, open source wiki software	Self-hosting a simple company wiki	Yes
Confluence	Team workspace for knowledge and collaboration	Companies already using Jira	Not stated
Document360	Knowledge base software for documentation	Customer-facing help centres and SOPs	Not stated
Guru	Verified knowledge layer for teams and AI	Keeping answers verified and current	Not stated
Notion	All-in-one AI workspace	Startups wanting docs and projects together	Not stated
Outline	Team knowledge base and wiki	Fast, clean wiki with a self-host option	Yes
Shelf	Knowledge management for AI and support	Contact centres fixing messy knowledge	Not stated
Slite	Self-maintaining AI knowledge base	Remote teams that hate stale docs	Not stated
Tettra	Internal knowledge base with Slack Q&A	Answering repeat questions in Slack	Trial only

Ten knowledge management tools to try

Bloomfire

Best for: Larger companies that want a governed knowledge base their staff and AI assistants can both rely on for answers.

BookStack

Best for: Small teams with a server who want a free, self-hosted wiki organised like books, chapters and pages.

Confluence

Best for: Organisations already on Atlassian tools that want docs, meeting notes and decisions kept in one connected workspace.

Document360

Best for: Teams that write user manuals, SOPs and help articles and want a structured knowledge base for customers or staff.

Guru

Best for: Sales and support teams that want answers verified by experts and surfaced where people already work.

Notion

Best for: Startups and small teams that want wikis, docs and projects in one flexible workspace with AI built in.

Outline

Best for: Teams that want a fast, tidy wiki with a Markdown editor, either hosted or self-hosted from the open source code.

Shelf

Best for: Contact centres and large support teams that want scattered knowledge cleaned up and structured for people and AI.

Slite

Best for: Remote and hybrid teams that want a knowledge base which flags out-of-date docs and keeps itself in sync.

Tettra

Best for: Small and mid-sized teams tired of answering the same questions in Slack who want an internal knowledge base that answers for them.

The retention rule most knowledge bases ignore

The ICO's guidance on storage limitation says you must not keep personal data for longer than you need it. You need to be able to justify how long you keep it, and you need a policy setting standard retention periods wherever possible.

Knowledge bases quietly break that rule, and it's rarely deliberate. Old onboarding pages list former staff, meeting notes include customer details, and nobody deletes anything. Choose a tool that gives every page an owner and a review date, and makes archiving or deleting easy, so the clutter doesn't become a compliance problem.

Wiki, knowledge base or knowledge platform?

A wiki is a shared space anyone can edit, great for internal processes and team notes. A knowledge base is more structured, often with articles written for customers or new starters. Knowledge platforms add verification, so experts confirm answers are still right, and increasingly feed those answers to AI assistants.

Smaller teams can do a lot with a simple wiki, and there's no shame in starting there. As the business grows and AI tools start answering staff questions, verified and well-owned content matters far more.

Questions to ask before you choose

1. How quickly can someone find an answer from search?
2. Can pages have owners and review dates?
3. Does it work inside the chat tool our team already uses?
4. Can we control who sees which spaces?
5. How does it connect to AI assistants, and which content do they use?
6. Can we import what we already have in documents and other tools?

Signs your knowledge is stuck in people's heads

• The same questions come up weekly. Answers aren't written down.
• Holidays slow everything. One person knows the process.
• New starters take months. They learn by asking around.
• Docs contradict each other. Nobody owns them.

Do you make knowledge management software? Tool makers can ask to be considered for a featured place on this list.

My plain advice on choosing knowledge management software

Ask the three people who answer the most questions what they're asked every week, and write those answers first in each trial. If colleagues find them without asking, the tool is doing its job. If they still message the expert, search or structure isn't working yet.

Make ownership non-negotiable. Every page needs a named owner and a date to check it again, or the knowledge base turns into a museum. If customers need answers too, my guide to the best knowledge base software covers customer-facing options.

Frequently asked questions

What is knowledge management software?

Knowledge management software helps a business capture, organise, share and update what its people know, such as processes, answers and guides, in one searchable place.

What's the difference between a wiki and a knowledge base?

A wiki is a flexible shared space anyone can edit. A knowledge base is usually more structured, with articles organised for a specific audience such as customers or new starters.

Are there free knowledge management tools?

Yes. Open source wikis can be self-hosted for free, and some hosted tools have free plans or trials. Check the free plan column in the table above.

How do I keep a knowledge base up to date?

Give every page an owner and a review date, use tools that flag stale content, and remove or archive pages that no longer apply.

Can AI use our knowledge base?

Many tools now let AI assistants answer questions from your content. That makes accurate, verified pages more important, because the AI repeats whatever it finds.

Does data protection law apply to knowledge bases?

If pages contain personal data, yes. The ICO says you must not keep personal data longer than you need it and should set retention periods.