Compare
GitBook vs WTFM
GitBook provides collaborative docs hosting, whereas WTFM focuses on local generation and optional publishing to SupportPages.io.
GitBookDocs and knowledge base for technical teams
WTFMWrite the F***ing Manual. Your agent writes the user docsWhich to pick
Pick GitBook if you want…
- AI-enhanced, version-controlled docs
- Collaborative docs hub
- Integrations with GitHub, GitLab or Slack (on GitBook's list, not WTFM's)
Pick WTFM if you want…
- User guides with auto-generated screenshots
- A free tool
- Integrations with Claude Code, Codex or SupportPages.io (on WTFM's list, not GitBook's)
Side by side
- What it is
- GitBook:GitBook is a knowledge platform that lets teams create, sync, and keep docs accurate with AI insights and collaborative workflows.
- WTFM:WTFM is a free open-source CLI plugin for Claude Code or Codex that generates end-user documentation with screenshots from your source code.
- Best for
- GitBook:AI-enhanced, version-controlled docs
- WTFM:User guides with auto-generated screenshots
- Who it’s for
- GitBook:Technical teams building product, API, and help center documentation.
- WTFM:Developers who want to auto-generate user guides for their apps without manual screenshots.
- Pricing
- GitBook:Freemium
- WTFM:Free
- Plans
- GitBook:Free $0 · Premium $65 per site/month · Ultimate $249 per site/month
- WTFM:—
- Works with
- GitBook:GitHub, GitLab, Slack, Linear
- WTFM:Claude Code, Codex, SupportPages.io, macOS, Linux, WSL on Windows
GitBook features
- Block-based visual editor. Create and edit docs with a WYSIWYG, block-based interface supporting Markdown.
- Git Sync. Two-way synchronization with GitHub or GitLab for docs-as-code workflows.
- AI Assistant & Search. AI chat and search let users ask questions and get short answers from the docs.
- AI Insights. Shows which content users struggle with and highlights knowledge gaps.
- Proactive stale-content detection. Scans docs for drift against the product and flags items for review.
- Access control & SSO. Role-based permissions, SAML SSO, and authenticated access for secure docs.
- Custom domain & branding. Publish docs on a custom domain with advanced branding options.
- Adaptive content. Show or hide sections based on user criteria for personalized experiences.
WTFM features
- Source-driven docs. Writes step-by-step guides by reading routes, templates and CSS from the code.
- Screenshot rendering. Creates PNG screenshots from HTML mockups of the UI using a local headless Chromium.
- Plain Markdown output. Exports each guide as an index.md with accompanying images for easy versioning.
- Pre-save validation. Checks structure, copy and screenshot accuracy before saving the article.
- Agent integration. Works with Claude Code or Codex using your existing subscription and model settings.
- Local-first operation. Runs entirely on your machine; no account required unless you publish to SupportPages.io.
GitBook vs WTFM FAQ
Is GitBook or WTFM free?+
GitBook has a free plan and paid plans. WTFM is free.
Do GitBook and WTFM integrate with the same tools?+
Their integration lists don't overlap: GitBook lists GitHub, GitLab, Slack and Linear; WTFM lists Claude Code, Codex, SupportPages.io, macOS and 2 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.