Opus

Minimal desktop note-taking app that reads and writes plain .note files.

Desktopfreeglobal

Opus is a free, open-source, minimal desktop note-taking app that reads and writes plain .note files in JSON format directly on the filesystem instead of a hidden database. It supports opening multiple project folders across multiple windows and is aimed at writers and developers who want notes that sync cleanly through tools like Dropbox.

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Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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