Documentation Software Pricing (2026)
What 12 documentation tools actually charge, taken from their own pricing pages and re-checked as they change. Cheapest first.
Pricing verified Sep 29, 2026
Prices here change. You'll hear about it.
Outmano watches pricing, features, roadmaps and reviews across your market, then sends one weekly brief: what changed, and what it means for you.
Documentation pricing at a glance
| Product | Entry price | Plans | Free plan | Free trial |
|---|---|---|---|---|
| Confluence | $5/mo | 4 | Yes | Yes |
| Nuclino | $6/mo | 3 | Yes | Yes |
| Slab | $6/mo | 4 | Yes | No |
| Tettra | $8/mo | 2 | No | Yes |
| Outline | $10/mo | 3 | No | Yes |
| Slite | $10/mo | 3 | No | Yes |
| GitBook | $65/mo | 4 | Yes | Yes |
| Archbee | $80/mo | 3 | No | Yes |
| ReadMe | $250/mo | 3 | Yes | Yes |
| Mintlify | $450/mo | 3 | Yes | Yes |
| Document360 | Custom | 3 | No | Yes |
| Guru | Custom | 0 | No | No |
Every documentation tool we track, cheapest first
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Confluence
Team workspace for knowledge and docs.
At $5.42–$10.44/seat, Confluence sits in the budget-to-mid range compared to Notion or Coda, banking on Atlassian's existing footprint in Jira shops rather than competing purely on features. They're clearly going after teams already inside the Atlassian ecosystem who want docs to live next to their tickets, not standalone knowledge-base buyers.
Plans: Free $0/mo per seat · Standard $5/mo per seat · Premium $10/mo per seat · Enterprise Contact Sales
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Nuclino
Fast, lightweight team wiki.
At $6-10 per seat, Nuclino undercuts heavier wiki/knowledge-base tools like Confluence and Notion's team tiers, positioning itself as the budget-friendly alternative for teams that want simplicity over bells and whistles. They're clearly chasing small-to-mid teams who find Confluence overkill and overpriced.
Plans: FREE $0/mo per seat · STARTER $6/mo per seat · BUSINESS $10/mo per seat
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Slab
Team knowledge base.
Slab sits mid-pack against Notion, Confluence, and Guru — not fighting on rock-bottom price but not premium either, banking on being the 'clean, focused knowledge base' alternative rather than the cheapest seat in the room. The lack of a free trial (just a money-back guarantee) suggests they're leaning on the free tier to do the trial's job.
Plans: Free $0/mo per seat · Startup $6/mo per seat · Business $12/mo per seat · Enterprise Contact Sales
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Tettra
Internal knowledge base for teams.
At $8/seat, Tettra sits mid-pack for wiki/knowledge-base tools — pricier than bare-bones docs tools but cheaper than heavier platforms like Guru or Confluence Premium once you factor in add-ons. The 10-seat minimum is the real story: it quietly pushes their effective floor price up, so they're not really courting solo teams or startups under 10 people.
Plans: Scaling $8/mo per seat · Enterprise Contact Sales
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Outline
Open-source team wiki.
Plans: Starter $10/mo per seat · Team $79/mo per seat · Business $249/mo per seat
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Slite
AI-first team knowledge base.
Sitting in the low-to-mid range for team docs/wiki tools, Slite isn't trying to be the budget option (no free plan says that clearly) but it's also not pricing like Notion or Confluence at enterprise scale. They're going after small-to-mid teams who want something more opinionated than a blank doc tool but don't want to pay premium collaboration-suite prices.
Plans: Basic $10/mo per seat · Pro $20/mo per seat · Enterprise Contact Sales
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GitBook
Documentation platform for teams.
GitBook sits mid-to-premium compared to plain wikis or Notion-style docs tools — it's pricier than scrappy alternatives but cheaper than enterprise-only docs platforms. They're chasing product and engineering teams who want polished, developer-friendly docs without building a whole DevPortal stack from scratch.
Plans: Free $0/mo · Premium $65/mo · Ultimate $249/mo · Enterprise Contact Sales
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Archbee
Documentation portals for products.
Archbee sits in the middle of the docs-tooling pack — pricier than bare-bones wiki tools but cheaper than heavyweight enterprise knowledge-base platforms that charge per seat and can balloon fast. The flat-rate structure is a pitch to mid-sized product and eng teams who want cost predictability as they scale contributors, rather than enterprises who've already budgeted for per-seat tools.
Plans: Growing $80/mo · Scaling $350/mo · Enterprise Contact Sales
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ReadMe
Interactive developer hubs.
At $250/mo minimum for a real plan, ReadMe sits solidly in premium territory compared to scrappier docs tools, but it's still cheaper than enterprise-only platforms that hide all pricing behind a sales call. They're clearly chasing funded startups and mid-market SaaS teams who see docs as a product experience, not just a cost center.
Plans: Starter $0/mo · Pro $250/mo · Enterprise Contact Sales
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Mintlify
Beautiful developer documentation.
At $450/mo, Mintlify is playing premium in the docs-tooling space, undercutting nothing — this isn't a GitBook or Docusaurus alternative for budget-conscious teams. They're going after companies willing to pay for design polish and AI-assisted docs workflows, betting that great documentation is a brand differentiator worth the spend.
Plans: Starter $0/mo · Pro $450/mo · Enterprise Contact Sales
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Document360
Knowledge base software.
Going full opaque pricing in the knowledge base space suggests they're positioning as the premium enterprise play against more transparent competitors like Notion or Confluence. They're betting on feature depth over pricing transparency to win deals.
Plans: Professional Contact Sales · Business Contact Sales · Enterprise Contact Sales
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Guru
AI-powered knowledge management.
Premium play targeting large enterprises who need white-glove knowledge management implementation. They're positioning against DIY solutions and lighter knowledge bases by bundling services with software — betting that complex orgs will pay for the hand-holding.
Documentation Software Pricing FAQ
- How much does documentation software cost?
- Entry prices run from $5/mo (Confluence) to $450/mo (Mintlify), with a median entry price of $10/mo across the 10 priced products we track.
- What is the cheapest documentation software?
- Confluence has the lowest entry price of the documentation software we track, at $5/mo. Nuclino ($6/mo) and Slab ($6/mo) are next. Confluence and Nuclino are free to start on.
- Is there free documentation software?
- Yes — Confluence, Nuclino, Slab and 3 more offer a free plan.
- How is documentation software usually priced?
- 6 of the 12 documentation tools we track use per seat pricing, against 3 on hybrid and 2 on custom.