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Tettra alternatives · Docs & Wikis

Open-source alternatives to Tettra

Tettra is not described as open source on its own site. 15 of the 51 other docs and wiki tools in this directory are open source, according to their own sites.

Tettra is a paid product with a free trial, starting at $8 per user / month, billed yearly ($10 billed monthly), 10-user minimum. All of them are free or have a free plan.

15 tools · Listings checked up to Oct 9, 2026 · Where the facts come from

The 12 closest to Tettra

  1. Outline

    Fast team knowledge base and wiki, cloud-hosted or self-hosted

    • Outline starts at $10 per month for a team of 1 to 10 members (cloud-hosted). Tettra starts at $8 per user / month, billed yearly ($10 billed monthly), 10-user minimum.
    • Outline has a free plan. Tettra does not, though it has a free trial.
    • Only Outline lists macOS and Windows apps.
    • Outline is open source and self-hostable, according to its own site.
    Outline pricing and details

  2. BookStack

    Free self-hosted wiki organized into books, chapters and pages

    • BookStack starts at £450 per year for an optional support plan; the software itself is free. Tettra starts at $8 per user / month, billed yearly ($10 billed monthly), 10-user minimum.
    • BookStack has a free plan. Tettra does not, though it has a free trial.
    • BookStack is open source and self-hostable, according to its own site.
    • BookStack also covers Markdown, templates and diagrams.
    BookStack pricing and details

  3. Wiki.js

    Open-source wiki software built on Node.js with Git sync

    • Wiki.js is free. Tettra starts at $8 per user / month, billed yearly ($10 billed monthly), 10-user minimum.
    • Wiki.js has a free plan. Tettra does not, though it has a free trial.
    • Wiki.js is open source and self-hostable, according to its own site.
    • Wiki.js also covers Markdown and diagrams.
    Wiki.js pricing and details

  4. MediaWiki

    The free wiki software that powers Wikipedia

    • MediaWiki is free. Tettra starts at $8 per user / month, billed yearly ($10 billed monthly), 10-user minimum.
    • MediaWiki has a free plan. Tettra does not, though it has a free trial.
    • MediaWiki is open source and self-hostable, according to its own site.
    • Tettra also covers AI search.
    MediaWiki pricing and details

  5. Docmost

    Open-source collaborative wiki you deploy on your own servers

    • Docmost starts at $6 per seat / month, billed annually (Business, 10-seat minimum). Tettra starts at $8 per user / month, billed yearly ($10 billed monthly), 10-user minimum.
    • Docmost has a free plan. Tettra does not, though it has a free trial.
    • Docmost is open source and self-hostable, according to its own site.
    • Docmost also covers databases and diagrams.
    Docmost pricing and details

  6. BlueSpice

    Open-source enterprise wiki built on MediaWiki

    • BlueSpice starts at $1,620 per year for up to 25 users, cloud-hosted (about $5.40 per user / month). Tettra starts at $8 per user / month, billed yearly ($10 billed monthly), 10-user minimum.
    • BlueSpice has a free plan. Tettra does not, though it has a free trial.
    • BlueSpice is open source and self-hostable, according to its own site.
    • BlueSpice also covers templates, diagrams and forms.
    BlueSpice pricing and details

  7. Documize

    Self-hosted knowledge base with approvals and analytics

    • Documize starts at $900 per year for up to 100 users. Tettra starts at $8 per user / month, billed yearly ($10 billed monthly), 10-user minimum.
    • Documize has a free plan. Tettra does not, though it has a free trial.
    • Documize is open source and self-hostable, according to its own site.
    • Documize also covers templates, documents and reports.
    Documize pricing and details

  8. Gramax

    Open-source knowledge base that stores Markdown in Git

    • Gramax starts at $20 per Editor license / month, minimum 10 licenses (Enterprise Server). Tettra starts at $8 per user / month, billed yearly ($10 billed monthly), 10-user minimum.
    • Gramax has a free plan. Tettra does not, though it has a free trial.
    • Only Gramax lists macOS, Windows and Linux apps.
    • Gramax is open source and self-hostable, according to its own site.
    Gramax pricing and details

  9. DokuWiki

    Open-source wiki software that needs no database

    • DokuWiki is free. Tettra starts at $8 per user / month, billed yearly ($10 billed monthly), 10-user minimum.
    • DokuWiki has a free plan. Tettra does not, though it has a free trial.
    • DokuWiki is open source and self-hostable, according to its own site.
    • Tettra also covers AI search.
    DokuWiki pricing and details

  10. XWiki

    Open-source enterprise wiki with structured data and apps

    • XWiki starts at 309 € per year for 10 users (Starter, XWiki Cloud only). Tettra starts at $8 per user / month, billed yearly ($10 billed monthly), 10-user minimum.
    • XWiki has a free plan. Tettra does not, though it has a free trial.
    • XWiki is open source and self-hostable, according to its own site.
    • XWiki also covers databases.
    XWiki pricing and details

  11. ONLYOFFICE

    Open-source office suite for documents, sheets, slides and PDFs

    • ONLYOFFICE starts at $20 per admin / month for the DocSpace Business cloud plan. Tettra starts at $8 per user / month, billed yearly ($10 billed monthly), 10-user minimum.
    • ONLYOFFICE has a free plan. Tettra does not, though it has a free trial.
    • Only ONLYOFFICE lists Windows, macOS, Linux, iOS and Android apps.
    • ONLYOFFICE is open source and self-hostable, according to its own site.
    ONLYOFFICE pricing and details

  12. Etherpad

    Open-source real-time collaborative editor you host yourself

    • Etherpad is free. Tettra starts at $8 per user / month, billed yearly ($10 billed monthly), 10-user minimum.
    • Etherpad has a free plan. Tettra does not, though it has a free trial.
    • Only Etherpad lists Windows, macOS and Linux apps.
    • Etherpad is open source and self-hostable, according to its own site.
    Etherpad pricing and details

3 more that are open source

All 15 in one table

Common questions

Is there an open-source alternative to Tettra?

Yes. Outline, BookStack, Wiki.js, MediaWiki, Docmost, BlueSpice, Documize, Gramax and 7 more are open source, according to their own sites.

Is Tettra open source?

Tettra is not described as open source on its own site. The listing was checked on Oct 5, 2026 against the pages it cites.

When was this checked?

Each listing shows its own date. On this page they run from Oct 5, 2026 to Oct 9, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Tettra: the alternatives its listing names first, then the tools that share the most features with it.