Best free knowledge base software
- Articles the structure implies
- 72
- Hours to write them all once
- 108
- What writing them costs once
- $6,264
The one external figure on this site is a statute, quoted and linked: 44 U.S.C. 3507, the Paperwork Reduction Act, which caps an approved federal information collection at three years so that even a form has to come back and prove it is still needed. The National Archives records control schedules are cited beside it as the other place a review cadence is written down rather than assumed. Everything else on these pages is your own count of categories, articles and owners, with the arithmetic printed next to each figure it produces.
Free here means two different things and the difference decides the shortlist. One is a paid product with a free tier that stops at a few users or a few dozen articles; the other is open source software you install and run yourself, where the license is free and the running is not. Both are legitimate answers and they suit opposite companies, so the useful question is which of the two you are actually shopping for.
Open the Knowledge base template Free to use. No account, no card, no sign-up.
Decide which kind of free you want
A free tier costs nothing until you outgrow it and then costs whatever the vendor charges, with no work in between. Self-hosted open source costs nothing to license and a standing claim on somebody's week for ever. Companies that pick without naming which trade they are making are the ones that abandon the result.
BookStack, if you want a base rather than a wiki
Read on its own installation documentation today: it runs on PHP with a MySQL-compatible database, which most companies can already host. Its structure is opinionated, shelves and books and chapters and pages, and that opinion is the reason it ends up more navigable than a wiki whose shape everybody negotiates.
XWiki, if you need structure and fields
Its installation guide, read today, puts it on Java, which is a different hosting conversation from PHP and a straightforward one if your company already runs Java services. What you get for that is the ability to put structured fields on a page, which is how you express an owner and a review date as data rather than as a convention.
MediaWiki, if contribution matters more than governance
Its own installation requirements page, read today, names PHP and a MySQL or MariaDB database. It is the most proven piece of software in this list by a wide margin and it has no concept of an article owner, so the discipline has to be a convention you enforce, which works in some cultures and in very few others.
Check the export before you write anything
Write ten articles in whichever you picked, export them, and read what comes out. Clean files with titles and structure intact mean a later move is a weekend. A database dump means the content is hostage to the software, which is the outcome free was supposed to avoid.
Price the running, then compare
A host, backups with a restore that has actually been tested, a patch cycle, and a search service if the project expects you to supply one. None is large alone. Added up they are the number that belongs next to the subscription you were avoiding, and sometimes they lose.
A base the Best free knowledge base software does not fit?
Two things the planner does not cover, and they are the two situations people write to us about. The first is a base that is really one enormous category: the arithmetic still runs, but the answer it gives is misleading, because the cost of a hundred articles in one undivided section is not the writing, it is that nobody can find anything and the review load lands on one person. The second is a company whose article owners are contractors rather than staff, where a six-month review cycle collides with contracts that end sooner than that and ownership has to transfer with the work. Tell us which you have and one person reads it: we answer by email, within a working day, and we do not call.
Knowledge bases: the questions that come up
Is a free tier ever the right answer for a company of two hundred?
For a first quarter, often. It gets the writing started and the shortlist decided by use rather than by demo. What it should not do is decide the long term, because the moment of outgrowing it is exactly the moment you have the least appetite for a migration.
Which of the three is easiest to keep patched?
Whichever matches what your team already hosts. A PHP shop will keep BookStack or MediaWiki current without thinking about it and will defer an XWiki upgrade for months, and the reverse is just as true. The right answer is about your team, not about the project.
Is source-available the same as open source?
No. You can read the code and the license may still restrict how you deploy it, or change on a later version. The Open Source Initiative publishes the definition; read the actual license rather than the marketing page that summarises it.
Do any of these give an article an owner and a review date?
XWiki can, through structured fields. The other two cannot, and the workaround is an owner line and a checked-on line written into every article plus a report that lists the overdue ones. Uglier than a feature, and it survives the person who invented it.
What is the most common way this ends badly?
An upgrade deferred because it is painful, then deferred again, then an advisory that applies to the version you are on. The software is rarely what fails. The calendar is.
Kbasevo Pro
Keep the library, and know which articles have gone stale
The planner tells you what the base will cost. Pro is for the month after launch, when the writing is done and the only question left is which of these 72 pages nobody has looked at since.
- Download the plan as a file you can edit, circulate and keep.
- Your plan without our name on the footer of every page.
- Keep this plan, with its version number and the date it was made.
- Your company's name and logo on the plan instead of ours.
- Export every article and every review at once, for a handover or an audit.
- Send the review reminder to the article's owner when it comes due, from inside the workspace.
$29per month, whole team
Start Kbasevo Pro Free for 14 days. No card needed. PricingThe first 14 days are free and no card is asked for. Add a card during the trial and the first charge is on the day it ends; do not, and your workspace becomes read-only with nothing deleted. Kbasevo Pro is $29 a month. It renews on the same date each month at the same price until you cancel, and the price you sign up at is the price you keep for as long as the subscription runs.