Joplin

Joplin does the Evernote model right: hierarchical notebooks, tags, full-text search, web clipper extension, and attachments, all stored as Markdown you actually own. Sync works over Nextcloud, Dropbox, OneDrive, S3, or their paid Joplin Cloud, with optional end-to-end encryption — and it imports Evernote’s ENEX files directly, which is exactly what most people switching need.

The editor is the weak spot: the split Markdown/preview view feels clunky next to Notion or Obsidian’s live editing, and the rich text mode has quirks with complex formatting. Mobile apps work but lag the desktop in polish. If your notes are more of a linked knowledge graph than a filing cabinet, look at Obsidian instead (free but not open source).