15 Best Wiki Software Tools, Compared Across Every Use Case

Wiki software lets multiple people create, edit, and organize shared knowledge in one place, a company policy hub, a WordPress help center, or a single-user notebook for personal notes. The right one depends on who’s writing and why, not which tool has the longest feature list.

An HR team rolling out a company wiki needs something that nobody has to be trained on. A WordPress site owner needs a plugin built for the CMS they already run. A developer might want something free, self-hosted, and scriptable. None of these three should be shopping from the same list, but most “best wiki software” roundups put them there anyway.

In this blog, I’ll walk you through 15 wiki software options worth considering in 2026, from enterprise SaaS to WordPress plugins to open-source and personal tools, sorted by what actually fits your situation.

What Is Wiki Software?

It shows up in a few genuinely different forms. Enterprise wiki platforms run as hosted SaaS tools built for company-wide knowledge sharing. WordPress plugins turn an existing site into a wiki or help center without a separate platform. Open-source wikis run on infrastructure you control, often free, sometimes decades-old and still actively maintained. Personal wikis are built for a single user organizing their own notes, frequently running entirely offline on one device.

Quick Example: A support team wants customers to find setup instructions without opening a ticket. If their site runs on WordPress, a knowledge base plugin adds that help center directly inside the CMS they already manage, no separate tool, no separate login.

Top 15 Wiki Software Compared

Once you know whether you need an enterprise SaaS platform, a WordPress plugin, or an open-source or personal wiki, the next question is which specific tool actually fits. Here’s how all 15 stack up before the individual breakdowns.

Now let’s look at what actually sets each of these 15 apart, starting with the tools built for broad, enterprise-wide use.

1. ProProfs Knowledge Base: The Easiest Customer Support Help Center & Internal Employee Knowledge Base in One

What stood out to me about ProProfs Knowledge Base as a wiki software option was how easy it was to start contributing. I didn’t have to learn markup or work through a complicated admin panel first. The editor felt familiar, almost like MS Word, so I could create and publish wiki pages without much of a learning curve.

As the wiki grew, maintenance became the biggest time-saver. AI Knowledge Brain used the content already in the knowledge base to improve how answers were surfaced, while reporting helped flag broken links and content gaps before they became bigger issues.

Search was where I noticed the difference most. I typed a plain-English question into AI Search Assistant and got a direct answer instead of a list of pages to dig through, which became especially useful once my wiki grew past a few hundred pages. If that still didn’t resolve the issue, I could move the conversation straight into ProProfs Chat. Since both are part of the same Customer Delight Suite, I could take someone from self-service to live support without switching platforms.

I also liked the access controls. Separate editor, contributor, administrator, and viewer roles made it easier to open up contributions without giving everyone the same publishing permissions.

Pros:

• AI Writer turns a rough note into a usable first draft, cutting down the time spent starting wiki pages from scratch
• Automated checks surface broken links and content gaps early, reducing the time spent manually auditing a growing wiki
• Content can be translated into 90+ languages, making it easier to support global teams without maintaining separate language-specific wikis
• SSO through Okta or Azure AD simplifies access for larger organizations and removes the need for separate credentials
• 20+ ready-made integrations with tools like Slack, Jira, and Salesforce reduce manual handoffs and keep the wiki connected to everyday workflows

Cons:

• No downloadable or on-premise version
• No dark mode

User Rating: 4.7/5 (Capterra)

Pricing: Free plan available with all premium features, up to 25 pages. Paid plans start at $49/author/month.

Tom Michael Dela Cruz, Training Specialist at The Studio Technologies Inc., says his team significantly reduced order-processing errors after creating a centralized source of information with ProProfs. Read to know more.

Read The Full Case Study

2. Confluence: Teams Already Running the Atlassian Ecosystem

Confluence became my default wiki less because it was purpose-built as one, and more because my team already ran Jira for engineering work and naturally extended into it for documentation too.

Spaces separated my content by team or department, each with its own permissions and page hierarchy, which kept my organization’s wiki from turning into one unmanageable flat list. The real differentiator for me was how tightly documentation tied back to actual engineering work, a requirements page linked directly to the Jira tickets it described.

Rovo, Confluence’s AI layer, drafted pages and summarized long ones for me in seconds. I found it could flag pages likely to have gone stale, though I still had to approve any fix myself before it went live.

Pros:

• A requirements page linked directly to the Jira tickets it described, keeping engineering and documentation connected
• Rovo drafted or summarized a page in seconds, cutting down my writing time
• Content organized into separate spaces per team, each with its own permissions
• Hundreds of templates and a large third-party Marketplace extended functionality further

Cons:

• Search and page organization got harder to manage as my spaces multiplied
• Best suited to teams already committed to the Atlassian ecosystem, less so a first-time wiki buyer

User Rating: 4.5/5 (Capterra)

Pricing: Free plan available for up to 10 users. Standard plan starts at $5.42/user/month.

3. Notion: Flexible Workspace Blending Wikis, Notes, and Projects

I didn’t pick Notion because it called itself a wiki tool. It started from a flexible, block-based workspace for me, and wiki functionality was one of several things I built inside it, alongside project tracking, databases, and personal notes, all in the same account.

That flexibility cut both ways for me. I built exactly the structure I wanted without fighting a rigid template, but nothing stopped that same flexibility from turning into an unstructured mess once I stopped actively maintaining it. Notion AI, from the Business tier, drafted, summarized, and searched pages for me using plain language, and I marked pages as verified and owned by a specific person through Notion’s wiki mode.

Pros:

• I built a wiki, a project tracker, and a database side by side in the same workspace, linked freely
• Notion AI drafted and summarized content for me from the Business tier
• Page verification and ownership settings kept content accountable
• A large library of community templates saved me setup time

Cons:

• Search and navigation degraded past a few hundred pages without a dedicated admin
• Not purpose-built as a wiki, so structure depended entirely on how deliberately I set it up

User Rating: 4.7/5 (Capterra)

Pricing: Free plan available. Plus plan starts at $10/member/month.

4. Zoho Wiki (Zoho Learn): Small Teams Already Using Other Zoho Apps

Zoho’s wiki product quietly folded into Zoho Learn, its broader knowledge and training platform, while I still found the underlying wiki functionality, workspaces, permissions, and a WYSIWYG editor, sitting there under the new name. Worth knowing upfront if you’re searching specifically for “Zoho Wiki” and land somewhere called Zoho Learn instead.

Its real appeal for me was already being inside the Zoho ecosystem. I created workspaces per department, each with its own administrative controls, and integration with the rest of Zoho’s suite meant my wiki didn’t sit as an isolated tool.

Pros:

• I published content using a WYSIWYG editor without touching code
• Separate workspaces per team gave me independent administrative controls
• Native integration across the broader Zoho suite kept the wiki connected to my other tools
• A real free tier let me start without committing to a paid plan

Cons:

• The rebrand to Zoho Learn caused real confusion when I was searching for “Zoho Wiki” by name
• Smaller standalone feature set compared to dedicated wiki platforms

User Rating: 4.0/5 (G2)

Pricing: Free plan available. Business plans start at roughly $2.15/user/month.

5. MediaWiki: Large-Scale, Self-Hosted Knowledge Repositories

I picked MediaWiki because it’s the software running Wikipedia itself, built from the ground up to handle enormous content volumes and heavy simultaneous traffic without buckling. For my self-hosted company wiki, that same architecture meant I could scale from a few hundred pages to tens of thousands without ever switching platforms.

Every edit I made got logged and could be reversed, and a massive library of community-built extensions covered nearly everything the core software didn’t include natively. The Semantic MediaWiki extension made structured data and custom queries possible whenever I needed them.

Pros:

• Completely free, no licensing cost at any scale
• Proven at the largest possible scale, the same architecture running Wikipedia
• A massive extension ecosystem covered nearly anything I needed
• Full data ownership, nothing hosted by a third party

Cons:

• A steep learning curve for setup and ongoing administration
• Real technical resources were required to deploy and maintain it
• Minimal native AI capabilities compared to newer platforms

User Rating: 4.5/5 (Capterra)

Pricing: Free and open-source. Costs come from hosting and technical maintenance.

6. Heroic Knowledge Base: WordPress Sites Needing a Dedicated Help Center

I wanted something that ran directly inside WordPress as a plugin, not as a separate hosted platform, so my wiki lived on the same domain and database as the rest of my site. Heroic Knowledge Base was built around exactly that, a different approach from every SaaS tool on this list.

According to W3Techs’ usage statistics, WordPress is used by 40.7% of all websites, and 58.9% of websites running a known content management system, which mattered to me since a WordPress-native wiki gets indexed as part of my site’s own SEO, unlike a hosted tool sitting on a vendor’s subdomain.

My migration wizard bulk-imported articles from CSV, BetterDocs, and Echo Knowledge Base in one click, and instant type-ahead search suggested relevant articles the moment a visitor started typing.

Pros:

• One flat annual fee, unlimited users, no per-seat pricing to worry about as I grew
• My content ran on my own domain, keeping full SEO value instead of sitting on a vendor’s subdomain
• The migration wizard bulk-imported my existing articles from CSV, BetterDocs, or Echo Knowledge Base
• A 14-day money-back guarantee let me test it with real content first

Cons:

• Requires an existing WordPress site to run on, not a standalone platform
• Search analytics, article feedback, and access control were locked behind the Plus tier and above

User Rating: 4.8/5 (per vendor’s own site, 300+ reviews)

Pricing: Essential plan from $169/year (1 site). Plus from $349/year (3 sites). Pro+AI from $599/year (5 sites).

7. Helpie WP: WordPress Sites Wanting a Free, Frontend-Editable Wiki

Frontend editing was the standout for me: I wrote and published directly on the live-looking page itself, rather than switching to a separate backend editor to see how a change would actually render.

I was already running WordPress and didn’t want to maintain a second platform just for a wiki, and Helpie WP positioned itself explicitly as an alternative to standalone wiki engines like MediaWiki for exactly that reason. A demo site let me spin up and test the frontend editor in seconds before committing, and revision history let me view past versions and roll back to any of them.

Pros:

• Frontend editing was a real, distinctive workflow advantage over a separate backend editor
• A genuine free tier with unlimited users, not just a trial
• Revision history let me roll back to any past version
• A low starting cost for the premium tier at $59/year

Cons:

• Requires an existing WordPress site to run on
• Smaller integration ecosystem than dedicated SaaS wiki platforms

User Rating: Insufficient review data to report.

Pricing: Free tier available. Premium starts at $59/year (1 site).

8. TikiWiki: An All-in-One CMS, Wiki, and Groupware Bundle

I didn’t just want a wiki. TikiWiki, more formally Tiki Wiki CMS Groupware, bundled wiki pages, a content management system, and groupware features like calendars and forums into one all-in-one codebase for me, rather than a core product with optional add-ons layered on top.

That all-in-one design was a genuine tradeoff I accepted. Every feature shipped and upgraded together, which avoided the version-mismatch problems some plugin-based tools run into, though it also meant an unusually large codebase to work with.

Pros:

• Completely free, GPL-licensed open-source software
• Genuinely all-in-one, no separate plugins needed for core groupware features
• A long track record, actively developed since 2002
• Ran on virtually any standard web hosting setup I had access to

Cons:

• An unusually large, all-in-one codebase compared to more modular open-source tools
• Setup and administration required real technical comfort
• The all-in-one approach felt like more than I needed for a simple wiki

User Rating: Insufficient review data to report.

Pricing: Free and open-source. Costs come from hosting, not the software.

9. XWiki: Structured Data and Custom Internal Apps on Top of a Wiki

I needed more than a typical wiki, so I built small internal applications, a request tracker and an asset registry, directly inside XWiki using its built-in scripting engine instead of bolting on a separate development platform.

Not everyone should see everything, though. Some pages needed to stay visible to just one team, not the whole company. So I set access rights at the wiki, space, and individual page level, giving me far more precise control than an all-or-nothing switch would have.

Pros:

• I built custom applications, like forms or trackers, directly inside the wiki using its scripting engine
• Access rights got set at the wiki, space, or individual page level, for precise control
• One installation hosted many separate wikis for different teams, known as a wiki farm
• Dedicated Confluence migration tooling saved me real time switching over

Cons:

• A steeper learning curve than most modern SaaS wiki tools
• More setup and ongoing administration than a fully managed platform required
• AI capabilities remained limited compared to newer, AI-first competitors

User Rating: 4.7/5 (Capterra)

Pricing: Free, open-source for self-hosted use. Cloud plans start around €1-2/user/month.

10. Tettra: Small Teams Living in Slack

Most of my internal knowledge started as a question someone asked in Slack, so I wanted a wiki that lived where that question already happened instead of asking people to visit a separate site. Tettra was built around exactly that premise.

Once I got a question answered, I had a searchable, reusable page instead of a chat message buried in history nobody could find again. I scheduled my pages for review by a subject matter expert, so accuracy depended on a deliberate check I set up rather than hoping someone happened to notice an error.

Pros:

• I asked a question directly in Slack and got an instant answer if it was already documented
• Pages got scheduled for review by a specific subject matter expert on a real cadence
• New pages got tagged automatically as I wrote them, keeping search accurate without manual tagging
• Analytics showed me which pages got used and which questions kept coming up with no answer

Cons:

• No free tier, and every paid plan required a 10-user minimum
• Limited scalability and fewer advanced analytics than larger enterprise platforms
• Heavily dependent on Slack, less useful if a team doesn’t live there

User Rating: 4.7/5 (G2)

Pricing: Scaling plan starts at $8/user/month, with a 10-user minimum.

11. PmWiki: Lightweight, Self-Hosted Wikis for Technical Teams

I wanted a wiki stripped down to a single principle: keep the core engine minimal, and let me add exactly what I needed through community-built extensions, called “recipes,” rather than starting with every possible feature by default. PmWiki delivered that.

My pages behaved like normal web pages with an “Edit” link attached, so no separate editing mode or admin panel was required to make a change. I applied password protection to the entire site, a group of pages, or one specific page, and skins let me change my site’s entire look and function without touching the core.

Pros:

• Completely free and open-source
• A deliberately minimal core kept the software lightweight and fast
• A long track record, actively maintained since 2009
• An extensive recipe library let me add exactly the features I needed

Cons:

• Minimal by design, so more advanced features required finding and installing the right recipe
• No modern WYSIWYG editor out of the box, I worked in basic markup
• Requires self-hosting and PHP server familiarity

User Rating: Insufficient review data to report.

Pricing: Free and open-source. Costs come from hosting, not the software.

12. DokuWiki: Lightweight, Database-Free Setup for Small Teams

I picked DokuWiki because every page saves as a plain text file instead of living inside a database. That made my whole wiki genuinely portable. I could back it up, move it, or read a page’s raw content just by opening a folder.

I set user permissions to control who could view or edit specific pages, turning an open model into a controlled one for my team. Over 1,500 community-built plugins added diagrams, tasks, and custom layouts whenever I needed something beyond the core.

Pros:

• Genuinely simple to install and maintain, no database for me to manage
• A large, long-standing plugin ecosystem covered nearly everything I needed
• Free and open-source under GPL
• Content stayed portable and readable even outside the platform

Cons:

• No WYSIWYG editor by default, I wrote in markup syntax
• Requires self-hosting and technical upkeep
• A narrower feature set than modern SaaS wiki platforms

User Rating: 3.9/5 (G2)

Pricing: Free and open-source. Costs come from hosting, not the software.

13. TiddlyWiki: A Single-File Personal Wiki That Runs in Any Browser

No other tool on this list did what TiddlyWiki did for me: my entire wiki, content, styling, and functionality, lived inside one self-contained HTML file. I opened that file in any browser on any operating system, and the whole wiki worked, no server, no install, no database.

My content was organized into small, interlinked units called “tiddlers” rather than full pages, which suited me well for capturing scattered notes and ideas that later connected into a bigger picture, more a personal thinking tool than a team documentation platform. An optional Node.js server mode supported genuine multi-user setups whenever I needed that.

Pros:

• Free and fully open-source under a permissive BSD license
• Genuinely portable, a single file I could email, back up, or carry on a USB drive
• No server or account required for my personal, single-file use
• Actively maintained with a current stable release

Cons:

• Single-user by default, multi-user collaboration required a separate server setup
• WikiText markup rather than a true WYSIWYG editor
• A steeper mental model than a typical page-based wiki, given the tiddler structure

User Rating: Insufficient review data to report.

Pricing: Free and open-source.

14. Wiki.js: Modern, Self-Hosted Wiki With Dark Mode and 50+ Integrations

A genuinely modern interface mattered to me, not just a functional one, and Wiki.js delivered that, including a real dark mode, something notably absent from most tools on this list.

It ran on Node.js rather than the PHP most open-source wikis are built on, and I noticed it’s been downloaded over 100 million times, a real signal of active, ongoing adoption rather than a legacy project coasting on its reputation. Enterprise authentication supported LDAP, SAML, Okta, and Azure AD out of the box, and I could connect Algolia or Elasticsearch if I ever needed more search power than the built-in engine offered.

Pros:

• A genuinely modern interface, including native dark mode
• Enterprise-grade authentication options built in, not bolted on
• Over 100 million downloads and 28,000+ GitHub stars, a real sign of active adoption
• Free and fully open-source under AGPLv3

Cons:

• Requires self-hosting and Node.js familiarity to deploy and maintain
• Native AI features aren’t part of the core platform
• Some advertised features, like tabular editing and API documentation, were still marked “coming soon”

User Rating: 4.3/5 (G2)

Pricing: Free and open-source. Managed hosting available from third-party providers.

15. Obsidian: A Local-First Personal Wiki and Notes App

Every other tool on this list assumed I needed an account or a server. Obsidian didn’t, my notes lived as plain Markdown files on my own device by default, with no cloud upload and no server required to use the full app.

Bi-directional linking and a visual graph view showed me how notes connected to each other, turning my personal knowledge base into something closer to a private, single-user Wikipedia than a flat folder of documents. Optional paid add-ons handled device sync and publishing notes as a public website whenever I wanted them, but neither was required to use the core app fully.

Pros:

• The core app was genuinely free forever, every feature included, not a limited free tier
• Notes stayed in an open, portable Markdown format with no vendor lock-in
• Worked fully offline by default, since everything lived on my local device
• A large, active plugin ecosystem extended the core app well beyond note-taking

Cons:

• Single-user by design, real-time team collaboration isn’t a core feature
• The free license covers personal use; organizations may need a separate commercial license
• Sync and Publish are paid add-ons, not included in the free core app

User Rating: 4.8/5 (Capterra)

Pricing: Free for personal use. Sync from $4/month (annual). Publish from $8/month (annual).

How I Evaluated These 15 Wiki Tools

Choosing the wrong wiki costs more than the license fee. Here’s exactly how I put each of the 15 through its paces.

• Pricing and Ratings: Comparison articles get stale fast, so I skipped them and went straight to each vendor’s own pricing page, cross-checking ratings on G2 or Capterra. One tool had quietly rebranded, and its pricing no longer matched what’s commonly repeated online. I also paid close attention to which tools genuinely qualified as some of the best free wiki software available, versus ones that dangled a “free” label but capped out too fast to be useful for a real team.
• Hosting Model Fit: “Free” means different things depending on who’s paying for it. I dug into whether that meant genuinely zero cost, or free software that still demanded real technical maintenance down the line. A self-hosted tool that saves money on licensing can quietly cost more in server time, security patches, and someone’s Saturday afternoons, so I weighed that tradeoff for every entry rather than taking the price tag at face value.
• Contribution Model: A wiki only works if the people who need to write in it actually can. So I asked whether a non-technical person could publish a first page without training, and separately, whether a technical team’s markup or scripting workflow felt like a natural fit rather than something they’d tolerate. A tool that only works for one of those two groups isn’t bad, it’s just the wrong fit for a mixed team, and I wanted that distinction clear rather than papered over.
• AI Capability Depth: Plenty of tools slap “AI-powered” on a pricing page without much behind it. Wherever a tool made that claim, I checked what it actually did day to day, real drafting or answering, not just a keyword search with a chatbot bolted on top. A lot of those claims turned out to be a single feature stretched thin across the marketing copy, so I tested each one with actual questions before giving it credit.
• Data Portability: Getting locked into a platform is a real risk with any wiki, so I confirmed whether content exported to an open format like plain text, Markdown, or HTML, or stayed locked into something proprietary that would turn switching tools later into a real project. This mattered more than I expected going in, since a wiki you can’t leave easily isn’t really a choice anymore, it’s a commitment.
• Personal Experience: Specs only tell half the story, so I used or reviewed each platform myself, and weighed that against feedback from people running wikis across enterprise teams, WordPress sites, and personal, single-user setups. Where my own experience and theirs lined up, I trusted the pattern; where they diverged, I dug deeper before drawing a conclusion.

My Top 3 Picks for Wiki Software

Still comparing options? Here’s where I’d send most people, one pick per lane.

1. ProProfs Knowledge Base

ProProfs Knowledge Base is my top pick for organizations that want broad employee participation without a training rollout. The editor works like a word processor, four-tier role-based access keeps publishing authority with the right people, and AI handles drafting, search, and gap-flagging at no extra cost. The free plan means you can test all of this with real content before committing to anything.

2. Heroic Knowledge Base

For WordPress site owners specifically, Heroic Knowledge Base wins on structure alone: one flat annual fee, unlimited users, and content that lives on your own domain instead of a vendor’s subdomain. It’s the clearest choice for teams that don’t want to add a second platform just to run a help center.

3. Obsidian

Obsidian is the right call for anyone building a personal knowledge base rather than a team wiki. The core app is genuinely free forever, notes stay in an open Markdown format with zero vendor lock-in, and everything works fully offline by default, no account, no server, no monthly bill required.

Which Type of Wiki Software Fits Which Teams

Most people start by asking “which tool is best,” when the more useful question is “which lane are we actually shopping in?” An enterprise SaaS platform, a WordPress plugin, and a self-hosted or personal wiki are answering three completely different questions, not competing for the same job.

Enterprise SaaS Platforms

Built for teams and organizations that want a hosted, managed wiki without running their own infrastructure. Best for HR, IT, cross-functional, and company-wide use.

WordPress Knowledge Base Plugins

Built for site owners and support teams that already run WordPress and want a wiki or help center on their own domain, without paying for or managing a separate platform.

Open-Source and Personal Wikis

Built for developers, technical teams, and individuals who want full control over their data, zero licensing cost, or a single-user notebook rather than a team tool. According to Dataintelo’s Personal Knowledge Management Software Market Research Report in 2026, the global PKM software market was valued at $1.8 billion in 2025 and is projected to reach $4.9 billion by 2034.

If your organization spans more than one of these lanes, that’s normal. A support team running a WordPress help center and an engineering team maintaining a self-hosted technical wiki aren’t wrong to use two different tools, they’re solving genuinely different problems for genuinely different audiences.

What Actually Matters When You’re Comparing These Tools?

Feature checklists make every wiki tool sound similar, but this list spans three genuinely different categories, so the questions worth asking change depending on which lane you’re in.

AI Features Worth Paying For

Worth being upfront about first: most open-source and personal wikis on this list, MediaWiki, TikiWiki, PmWiki, DokuWiki, TiddlyWiki, don’t have native AI at all, and that’s a deliberate choice, not a gap. These tools prioritize data ownership and zero-cost self-hosting over built-in AI, and adding it usually means a third-party plugin or none at all. For the SaaS and WordPress-plugin tools that do offer AI, here’s what’s actually worth paying for:

• Drafting a full page from a rough prompt, cutting the time from blank page to published content
• Answering a plain-language question with one direct, cited answer instead of a list of pages to dig through
• Flagging content gaps or failed searches automatically, so a broken or missing page gets caught before someone hits it
• An AI chatbot grounded specifically in the wiki’s own content, not the open internet, so answers stay accurate to what’s actually documented

Core Features You Shouldn’t Compromise On

AI gets the attention, but these basics decide whether the wiki actually works for your team long after the AI features stop feeling new.

• Hosting model that matches your actual resources. A self-hosted wiki is free to license but not free to run, someone needs to handle security patches and uptime. A SaaS or WordPress plugin costs money but removes that burden entirely.
• A contribution method that matches who’s writing. A visual, no-code editor for non-technical teams; markup or a scripting engine for technical ones comfortable with it.
• Real data portability. Check whether content exports to an open format, plain text, Markdown, HTML, or stays locked in a proprietary structure that makes switching tools later a genuine project.
• Licensing that matches actual team size. Per-seat SaaS pricing scales with headcount; flat-fee WordPress plugins and free open-source tools don’t, which one wins depends entirely on how many people need to contribute.

Pick the Wiki That Actually Fits, Not the One With the Most Features

The best wiki software isn’t the one with the longest feature list, it’s the one the right people will actually keep using. Start by figuring out which lane you’re really in, enterprise SaaS, WordPress plugin, or open-source and personal, before comparing any tools within it.

Most tools on this list solve one lane well: MediaWiki and Wiki.js for teams that want full infrastructure control, Heroic Knowledge Base for WordPress sites that want a dedicated help center, Obsidian and TiddlyWiki for a single person organizing their own notes. If you’re only solving one problem, that specialization is exactly what you want.

But most organizations need more than one lane covered eventually. ProProfs Knowledge Base is built for the broadest of these, letting technical and non-technical employees contribute to the same wiki without a training rollout, with AI built into drafting, search, and upkeep from day one. Its forever free plan covers up to 25 pages with every premium feature included, so you can test it with real content before deciding on anything.