Cheapest Knowledge Base & Docs software
9 products with sourced pricing and capability data, 4 with a free plan. Entry paid plans median $10/mo; the cheapest product covering the 4 most common capabilities here is Tettra from $8/mo. Pick the one you pay for today to find a cheaper replacement.
Read the guide: Cheapest Confluence alternatives, single-user pricing →
9 tracked4 with a free plan1 open source
Same job. Way less money.
Must have:
Helpjuice
$249/mo · Customized Knowledge Base
Free alternative foundDocumentation platformVerified 2026-09-07
GitBook
$65/mo · Premium · free plan available
Free alternative foundFree planOpen sourceSelf-hostedDocumentation platformVerified 2026-08-31
Notion
$10/mo · Plus · free plan available
Free alternative foundFree planWork managementAlso fits hereVerified 2026-08-26
Outline
$10/mo · Cloud (1–10 team members)
Free alternative foundSelf-hostedTeam wikiVerified 2026-09-07
Slite
$10/mo · Basic
Free alternative foundTeam wikiVerified 2026-08-31
Tettra
$8/mo · Scaling
Free alternative foundTeam wikiVerified 2026-09-07
Confluence
Free
Free planTeam wikiVerified 2026-09-12
Document360
Pricing being researched
Documentation platformVerified 2026-08-31
Nuclino
Free
Free planTeam wikiVerified 2026-09-07
Paying for knowledge base & docs already?
Find my alternativeTake the quiz from any product page and we'll compute your cheapest qualifying replacement.