Quick answer: for a small team that wants one place for know-how, procedures and training, pick Helpable. If your team lives in Slack and mainly wants answers in chat, look at Tettra. If you want a clean wiki with a free start, try Slab. If you already use Notion or Jira for everything else, Notion or Confluence keeps it all in one tool. Guru and Document360 fit larger companies that want a tailored setup and a sales-led quote.
An internal knowledge base is where your team finds out how things are done: the client checklist, the opening routine, the refund rule, the login for the shared tool. For teams of 5 to 50 people, the real test is simple. Can someone find the answer in under a minute, and is the answer still right? Below we compare 8 tools on exactly that.
| Tool | Best for | Standout | Starting price | Free trial / plan |
|---|---|---|---|---|
| Helpable | Small teams that want knowledge, procedures and training in one place | Read confirmations and AI answers from your own content | From the Business plan, see pricing | 14-day free trial |
| Tettra | Teams that work in Slack all day | AI answers in Slack channels and DMs | $8 per user/month, 10-user minimum | 30-day free trial |
| Slab | Teams that want a tidy wiki with a free start | Free plan for up to 10 users | Free; Startup $6.67 per user/month (billed annually) | Free plan |
| Slite | Teams that want AI search across their docs | "Ask" AI answers and doc verification | $10 per user/month (billed yearly) | 14-day free trial |
| Notion | Teams that already run projects in Notion | Wiki, docs and databases in one workspace | Free; Plus €9.50 per member/month | Free plan |
| Confluence | Teams that already use Jira | Deep link with Jira and Atlassian tools | Free for up to 10 users; paid: see vendor's pricing page | Free plan |
| Guru | Larger companies that want AI answers across many tools | Verification workflows and permission-aware AI | See vendor's pricing page (custom) | Not listed |
| Document360 | Companies that also need a public product knowledge base | Private and public projects, Eddy AI | See vendor's pricing page (custom) | Not listed |
Prices are taken from each vendor's own pricing page on 15 October 2026. They change often, so check the vendor before you buy.
How we evaluated
We looked at each tool through the eyes of a team of 5 to 50 people with no full-time knowledge manager. That could be a cleaning company, a dental practice, a marketing agency, a software startup or a franchise with a few locations. We scored on six things:
- Setup time. Can a manager get the first articles live in an afternoon?
- Finding answers. Search quality, and whether AI can answer questions from your own content.
- Keeping it current. Owners, review dates or verification, version history.
- Access control. Can you keep some content team-only and share other content publicly?
- Proof people read it. Can you see who read and confirmed an important page?
- Price clarity. Is the price public, and does it make sense for 5 to 50 people?
We checked every vendor's own website and pricing page on 15 October 2026. Where a price was not public, or we could not open the page, we write "See vendor's pricing page."
Full disclosure: Helpable is our own product, and we list it first. We have tried to be fair to every other tool and say plainly who each one fits. The section When Helpable is not the right fit lists the cases where another tool is the better buy.
1. Helpable
Best for: small teams that want their knowledge base, procedures and training in one tool, with proof that people read the important parts.
Helpable is training and knowledge software for teams of about 5 to 50 people. You write articles in an internal knowledge base, turn routines into step-by-step procedures, and use the same content to train and onboard new people. Employees can ask a question in their own words and get a short answer from your own articles, procedures and documents, with a link to the source.
Key features:
- Internal (team-only) and public knowledge bases with categories and search; the public help center can run on your own domain
- AI answers: employees ask in plain words and get an answer from your content, with the source linked; it says so when it does not know, and unanswered questions become a list of gaps to write up
- Procedures with numbered steps, images, checklists, an owner and a review date
- Read confirmations per published version, with a re-confirm after a change (every plan)
- Upload handbooks and policies (PDF, Word, text); Helpable suggests article drafts a manager checks
- AI course creator that drafts training from your published articles and procedures
- Roles and permissions, teams and departments; data hosted in the EU
Pricing: from the Business plan, see pricing. Every plan includes read confirmations, assignments, progress tracking and certificates. Business Plus adds more seats and automatic assignment; Business Max adds up to 10 knowledge bases and recurring training. 14-day free trial.
Pros:
- Knowledge base, procedures and training in one tool, so you write things once
- AI answers stay inside your own content and show the source
- Clear proof of who read and confirmed a changed procedure
- Works in the browser on phone, tablet and laptop, which suits shift and on-site teams
Cons:
- No free plan (there is a 14-day free trial)
- No SSO, no Slack or Teams integration yet (Slack is in development and not available yet)
- No native mobile app; it runs in the phone's browser
- Interface in English and Dutch only
Want to see the full picture? Read our page on internal knowledge base software.
2. Tettra
Best for: teams that spend their day in Slack and want answers to come to them there.
Tettra is a knowledge base built around answering repeat questions. Its AI bot, Kai, searches your content and answers in Tettra or in Slack. If Kai can't find an answer, it helps find the right person. Tettra names whole companies, service teams and agencies as use cases.
Key features:
- AI answers and AI page tagging
- Slack: answers in DMs and channels, thread summaries, and mining past answers from Slack
- Page verification by subject experts, with suggested edits they approve
- Import from Google Docs, Notion, local files and PDFs
- Unlimited storage and version history on the Scaling plan
Pricing: Scaling is listed at $8 per user/month with a 10-user minimum. SSO (SAML) and SCIM are paid add-ons on Scaling and included on Enterprise (custom price). 30-day free trial.
Pros:
- Strong fit for Slack-first teams
- Verification helps keep pages current
- Easy import from existing docs
Cons:
- 10-user minimum on the listed plan
- No Microsoft Teams integration mentioned on the pricing page
- Focused on knowledge; training and courses are not part of the listed plan
3. Slab
Best for: small teams that want a clean, easy wiki and a free plan to start.
Slab is a knowledge base and wiki with a simple editor and unified search. Its free plan covers up to 10 users, which makes it an easy way to try an internal knowledge base with a small team.
Key features:
- Topics to organize content, unified search and verification on every plan
- AI Autofix on Startup; AI Ask and AI Predict on Business
- Version history (90 days on Free, 365 days on Startup, unlimited on Business)
- Single sign-on on all plans; SAML SSO and SCIM on Business
- Integrations (10 standard on Free, unlimited standard on Startup)
Pricing: Free for up to 10 users. Startup is $6.67 per user/month and Business $12.50 per user/month, both billed annually. Enterprise starts at 100 users with custom pricing. 30-day money-back guarantee.
Pros:
- Real free plan for up to 10 users
- Clean writing and reading experience
- Verification on every plan
Cons:
- AI answers (AI Ask) only on the Business plan
- Focused on the wiki; no training, quizzes or read confirmations listed
4. Slite
Best for: teams that want AI search and answers across their docs, and a tidy shared workspace.
Slite is a shared docs and knowledge base tool with AI built in. Its "Ask" feature answers questions from your docs, and the Pro plan adds an agent that can search across connected tools.
Key features:
- Ask: AI search and answers (30 AI questions per seat per month on Basic)
- Doc verification workflow and a knowledge management panel
- Pro: Slite Agent, search across connected tools, fact-checking with suggested fixes
- OpenID SSO and a custom domain for public docs on Pro
- MCP and API access
Pricing: Basic $10 per user/month and Pro $20 per user/month, billed yearly. Enterprise is custom. 14-day free trial with Basic and Pro features, no credit card required.
Pros:
- AI answers on the entry plan
- Verification built in
- Clear public pricing
Cons:
- AI questions are capped per seat on Basic
- Docs-focused; no training or read confirmations listed
5. Notion
Best for: teams that already plan projects in Notion and want their wiki in the same place.
Notion is a flexible workspace for docs, wikis, databases and projects. Many small teams already use it, which makes it a natural first home for internal knowledge. The trade-off is that you design the structure yourself.
Key features:
- Pages, databases and teamspaces (private teamspaces on Business)
- Verified page badge on Business, to mark pages that are up to date
- Notion Agent, AI meeting notes and Enterprise Search (beta) on Business
- SAML SSO on Business; SCIM on Enterprise
- Page history (7 days on Free)
Pricing: Free plan available. Plus is €9.50 and Business €19.50 per member/month, as shown on the pricing page in euros (the page does not label the billing period for these figures). Enterprise is custom.
Pros:
- Very flexible; one tool for docs, tasks and wiki
- Free plan to start
- Many teams already know how to use it
Cons:
- You build and maintain the structure yourself
- Verification and full AI features sit on the Business plan
- No built-in read confirmations or training tracking
Comparing a wiki with a knowledge base? Read wiki vs knowledge base.
6. Confluence
Best for: teams that already use Jira and other Atlassian tools.
Confluence is Atlassian's team workspace for pages, whiteboards, databases and video. It connects closely with Jira, and Atlassian's Rovo AI adds answers and page summaries.
Key features:
- Pages, whiteboards, databases and Loom videos
- Templates for many team types
- Rovo AI: answers from anywhere, summaries of pages and comments
- Jira integration
Pricing: free for up to 10 users, no credit card needed. For paid plans, see vendor's pricing page (we could not load the price table on 15 October 2026).
Pros:
- Free for up to 10 users
- Best fit if your team already works in Jira
- Templates for many team types
Cons:
- Rovo AI and the wider Atlassian suite can be more than a small non-technical team needs
- Paid pricing depends on team size; check the calculator
Moving away from Confluence? See our Confluence alternatives.
7. Guru
Best for: larger companies that want AI answers across many connected tools, with strong governance.
Guru calls itself a governed knowledge layer for enterprise AI. It gives cited, permission-aware answers, delivers answers in Slack and Microsoft Teams, and runs verification workflows that flag stale pages and route them to experts.
Key features:
- Knowledge Agents with cited, permission-aware answers
- Verification workflows and usage signals; flags stale pages and merges duplicates
- Slack and Microsoft Teams out of the box
- 100+ integrations and MCP delivery
- SSO, SCIM, SOC 2 Type II and HIPAA
Pricing: see vendor's pricing page. Pricing is custom and set through a call with sales.
Pros:
- Strong verification and governance
- Answers inside Slack and Teams
- Built for many connected sources
Cons:
- No public price; sales-led buying
- Enterprise focus can be more than a team of 10 needs
8. Document360
Best for: companies that need a private knowledge base for staff and a public one for customers, with a tailored setup.
Document360 is a knowledge base platform with private projects for confidential content and public projects for customers. Its Eddy AI writes content, creates FAQs and answers questions.
Key features:
- Private projects with reader accounts for internal content
- Eddy AI: writing agent, FAQ creation, AI search and answers
- SSO, SCIM, IP restriction, roles and permissions
- SOC 2 Type II on all plans; onboarding sessions and a success manager included
Pricing: see vendor's pricing page. Pricing is custom, based on editors, workspaces, languages, SSO needs, privacy model and AI usage.
Pros:
- Strong for public and private documentation side by side
- Onboarding help included
- Many security options
Cons:
- No public price
- Built for documentation teams; may be more than a small team needs
How to choose in five minutes
- You want one place for knowledge, procedures and training: Helpable. See knowledge base software and SOP software.
- You live in Slack: Tettra.
- You want a free wiki for up to 10 people: Slab or Confluence.
- You already run your work in Notion or Jira: stay with Notion or Confluence.
- You are a larger company with a big tool stack: Guru or Document360.
Whatever you pick, start small. Write the 20 questions new people ask most, give each article an owner, and set a review date. Our guide on how to create an internal knowledge base walks through it, and how to organize a knowledge base helps with structure.
When Helpable is not the right fit
We would rather you pick the right tool. Look elsewhere if:
- You need single sign-on (SSO). Helpable has no SSO. Slab, Slite, Notion, Guru and Document360 offer it on some plans.
- You want answers inside Slack or Microsoft Teams today. Helpable has no Slack or Teams integration yet. Tettra and Guru are built for this.
- You need SCORM. Helpable does not import or export SCORM packages.
- You need a native mobile app. Helpable works in the phone's browser; there is no app in the app stores.
- You need a free plan for the long term. Helpable has a 14-day free trial and no free plan. Slab, Notion and Confluence have free plans.
- You are a large enterprise with hundreds of users, many connected sources and strict governance. Guru or Document360 are built for that scale.
- You need an interface in a language other than English or Dutch.
FAQ
What is internal knowledge base software?
Internal knowledge base software is a private, searchable library of how your company works, for employees only. It holds articles such as checklists, policies, how-tos and answers to common questions. Good tools add search, owners and review dates so the content stays correct. Read more in our guide to the internal knowledge base.
What is the best internal knowledge base software for small teams?
For teams of 5 to 50 that want knowledge, procedures and training in one place, Helpable is a strong fit. If you mainly want answers in Slack, Tettra fits well, and if you want a free wiki for up to 10 people, Slab is a good start. The best tool is the one your team will open every day, so try two and let a few employees test search.
How much does internal knowledge base software cost?
Prices on public pages range from free plans (Slab, Notion, Confluence for up to 10 users) to around $6 to $20 per user per month for paid plans, as listed on 15 October 2026. Some vendors, such as Guru and Document360, only quote prices through sales. Helpable starts with the Business plan; see pricing for current prices and the 14-day free trial.
Is there free internal knowledge base software?
Yes. Slab is free for up to 10 users, Confluence is free for up to 10 users, and Notion has a free plan with limits for teams. Free plans usually limit history, AI and permissions, so check what you give up. Helpable has no free plan; it offers a 14-day free trial.
Can AI answer employee questions from our own knowledge base?
Yes, several tools do this, including Helpable, Tettra, Slite, Guru and Confluence (with Rovo). In Helpable, employees ask in their own words and get a short answer from your articles, procedures and documents, with a link to the source. When it does not know, it says so, and the question lands on a list of gaps for you to write up.
How do I keep an internal knowledge base up to date?
Give every article an owner and a review date, and update pages the moment a process changes. Tools with verification (Tettra, Slab, Slite, Guru) or review dates (Helpable procedures) remind owners when content is due. For rules people must follow, use read confirmations so you know everyone saw the change.
What is the difference between a wiki and an internal knowledge base?
A wiki lets anyone write and link pages freely, which is great for brainstorming and project notes. An internal knowledge base is more curated: fewer authors, clear categories, owners and review dates, so answers are reliable. See wiki vs knowledge base for a full comparison.
Can I run an internal and a public knowledge base in one tool?
Yes. Helpable gives you an internal (team-only) and a public knowledge base on every plan, and the public help center can run on your own domain. Document360 also offers private and public projects. This saves you from keeping two tools in sync.
Can I use my knowledge base to onboard and train new employees?
Yes, if the tool supports training. In Helpable you can turn published articles and procedures into training with the AI course creator, assign it to new people and track progress on every plan. Read our guide to the best onboarding software for small businesses and see employee onboarding software.
Related reading
- 7 Best SOP Software for Small Businesses (2026)
- 9 Best Onboarding Software for Small Businesses (2026)
- How to write knowledge base articles
- Employee training software
Sources
- Tettra pricing: https://tettra.com/pricing/ (checked 15 October 2026)
- Tettra product overview: https://tettra.com/ (checked 15 October 2026)
- Slab pricing: https://slab.com/pricing/ (checked 15 October 2026)
- Slite pricing: https://slite.com/pricing (checked 15 October 2026)
- Notion pricing: https://www.notion.com/pricing (checked 15 October 2026)
- Confluence product page: https://www.atlassian.com/software/confluence (checked 15 October 2026)
- Confluence free plan: https://www.atlassian.com/software/confluence/free (checked 15 October 2026)
- Confluence pricing: https://www.atlassian.com/software/confluence/pricing (checked 15 October 2026; price table did not load)
- Guru pricing: https://www.getguru.com/pricing (checked 15 October 2026)
- Guru product overview: https://www.getguru.com/ (checked 15 October 2026)
- Document360 pricing: https://document360.com/pricing/ (checked 15 October 2026)