Most SaaS help centers start in whatever tool support already had: Zendesk Guide, Confluence, a folder of Word files, a shared Google Drive. That works until you want docs reviewed like code, versioned with the product, or read by an AI assistant. Then the export button hands you markup, not content.
We convert the content to clean Markdown with frontmatter, rebuild the navigation, re-link images and attachments, and map every old URL to its new page so search rankings and support macros keep working. You review the result as pull requests, one slice at a time. The general case is documentation migration; platform detail is on Confluence to Docusaurus and Zendesk to Docusaurus.
Still choosing a target platform? The Docusaurus, MkDocs and GitBook comparison covers the trade-offs for help centers, and the migration checklist lists what to settle before anything moves.