Mantella - a desktop PDF reader

Mantella is a fast, minimal desktop PDF reader for people who keep a real library of documents. Point it at a folder once; it scans recursively, stays in sync as files come and go, and renders pages with Chromium’s PDF engine (pdfium).

Reading position, zoom, and pins are remembered per file. There is no account and no cloud requirement — a library that behaves like a folder, and pages that look like print.

Builds are available for macOS, Windows, and Linux. Source and docs live on GitHub.

Releases

21 July 2026: Mantella 0.1.0 Released

The first public release of Mantella is available for download. It includes a PDF library with folder scanning and live sync, pdfium rendering with text selection and links, per-file reading position and bookmarks, customizable shortcuts, and signed auto-updates for macOS, Windows, and Linux.

See the release notes for details.